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Journal articles on the topic 'Reconfigurable phase shifter'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Golod, Taras, Razmik A. Hovhannisyan, Olena M. Kapran, Vyacheslav V. Dremov, Vasily S. Stolyarov, and Vladimir M. Krasnov. "Reconfigurable Josephson Phase Shifter." Nano Letters 21, no. 12 (June 11, 2021): 5240–46. http://dx.doi.org/10.1021/acs.nanolett.1c01366.

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2

Qaroot, Abdullah, and Gokhan Mumcu. "Microfluidically Reconfigurable Reflection Phase Shifter." IEEE Microwave and Wireless Components Letters 28, no. 8 (August 2018): 684–86. http://dx.doi.org/10.1109/lmwc.2018.2847046.

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3

Chicherin, Dmitry, Mikael Sterner, Dmitri Lioubtchenko, Joachim Oberhammer, and Antti V. Räisänen. "Analog-type millimeter-wave phase shifters based on MEMS tunable high-impedance surface and dielectric rod waveguide." International Journal of Microwave and Wireless Technologies 3, no. 5 (October 2011): 533–38. http://dx.doi.org/10.1017/s1759078711000821.

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Millimeter-wave phase shifters are important components for a wide scope of applications. An analog-type phase shifter for W-band has been designed, analyzed, fabricated, and measured. The phase shifter consists of a reconfigurable high-impedance surface (HIS) controlled by micro-electromechanical system (MEMS) varactors and placed adjacent to a silicon dielectric rod waveguide. The analog-type phase shift in the range of 0–32° is observed at 75 GHz whereas applying bias voltage from 0 to 40 V to the MEMS varactors. The insertion loss of the MEMS tunable HIS is between 1.7 and 5 dB, depending on the frequency.

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4

Gao, Sheng, Jun Yang, Peng Wang, Andong Zheng, Hongbo Lu, Guangsheng Deng, Weien Lai, and Zhiping Yin. "Tunable Liquid Crystal Based Phase Shifter with a Slot Unit Cell for Reconfigurable Reflectarrays in F-Band." Applied Sciences 8, no. 12 (December 6, 2018): 2528. http://dx.doi.org/10.3390/app8122528.

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An electrically tuned phase shifter based on the single slot unit cell and liquid crystal for a reconfigurable reflectarray antenna was presented. The simulation and measured results obtained at the F-band were used to demonstrate that the dielectric properties of a nematic state liquid crystal could be exploited to realize a slot unit cell phase shifter for the reconfigurable reflectarrays antennas. By reducing the inhomogeneous of the external electric field in the liquid crystal layer, a lower control voltage and improved model accuracy was obtained. In the experiments test, the achieved saturation bias voltage (10 V) was smaller than the previously reported structure, and the phase shift of the reflectarray greater than 300° was achieved in the frequency range 121.5–126 GHz. The maximum phase shift of 306° occurred at 124.5 GHz.

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5

Lababidi, Raafat, Maryam Al Shami, Marc Le Roy, Denis Le Jeune, Khaled Khoder, and André Pérennec. "Tunable channelised bandstop passive filter using reconfigurable phase shifter." IET Microwaves, Antennas & Propagation 13, no. 5 (March 2019): 591–96. http://dx.doi.org/10.1049/iet-map.2018.5430.

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6

Padilla, P., A. Muñoz-Acevedo, and M. Sierra-Castañer. "Low loss 360° Ku band electronically reconfigurable phase shifter." AEU - International Journal of Electronics and Communications 64, no. 11 (November 2010): 1100–1104. http://dx.doi.org/10.1016/j.aeue.2009.11.007.

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7

Abdollahy, Hassan, Ali Farahbakhsh, and Mohammad Hossein Ostovarzadeh. "Mechanical reconfigurable phase shifter based on gap waveguide technology." AEU - International Journal of Electronics and Communications 132 (April 2021): 153655. http://dx.doi.org/10.1016/j.aeue.2021.153655.

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8

Li, Jinfeng. "Rethinking Figure-of-Merits of Liquid Crystals Shielded Coplanar Waveguide Phase Shifters at 60 GHz." J 4, no. 3 (August 17, 2021): 444–51. http://dx.doi.org/10.3390/j4030034.

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The demand for reconfigurable millimetre-wave (mm-Wave) components based on highly anisotropic liquid crystals (LC) is higher than ever before for the UK and worldwide. In this work, 60 GHz investigation on a bespoke shielded coplanar waveguide (SCPW) phase shifter structure filled with 16 types of microwave-enabled nematic LCs respectively indicates that the patterns of the device’s figure-of-merit (FoM, defined as the ratio of maximum differential phase shift to maximum insertion loss) reshuffle from those of the characterised LC materials’ FoM (defined as the ratio of tunability to maximum dissipation factor). To be more specific, GT7-29001- and MDA-03-2838-based phase shifters exhibit the highest FoM for devices, outperforming phase shifters based on GT5-28004 and TUD-566 with the highest FoM for materials. Such a mismatch between the device’s FoM and LC’s FoM implies a nonlinearly perturbed wave-occupied volume ratio effect. Furthermore, the relationship between insertion loss and the effective delay line length is nonlinear, as evidenced by measurement results of two phase shifters (0–π and 0–2π, respectively). Such nonlinearities complicate the established FoM metrics and potentially lead to a renewed interest in the selection and material synthesis of LCs to optimise reconfigurable mmWave devices, and promote their technological exploitation in phased array systems targeting demanding applications such as inter-satellite links and satellite internet.

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9

Ji, Yuan, Lei Ge, Jianpeng Wang, Quangang Chen, Wen Wu, and Yujian Li. "Reconfigurable Phased-Array Antenna Using Continuously Tunable Substrate Integrated Waveguide Phase Shifter." IEEE Transactions on Antennas and Propagation 67, no. 11 (November 2019): 6894–908. http://dx.doi.org/10.1109/tap.2019.2927813.

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10

Unlu, Mehmet, Simsek Demir, and Tayfun Akin. "A 15–40-GHz Frequency Reconfigurable RF MEMS Phase Shifter." IEEE Transactions on Microwave Theory and Techniques 61, no. 8 (August 2013): 2865–77. http://dx.doi.org/10.1109/tmtt.2013.2271995.

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11

Padilla, P., J. F. Valenzuela-Valdes, J. L. Padilla, J. M. Fernandez-Gonzalez, and M. Sierra-Castaner. "Electronically Reconfigurable Reflective Phase Shifter for Circularly Polarized Reflectarray Systems." IEEE Microwave and Wireless Components Letters 26, no. 9 (September 2016): 705–7. http://dx.doi.org/10.1109/lmwc.2016.2597208.

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12

Moret, Boris, Nathalie Deltimple, Eric Kerhervé, Baudouin Martineau, and Didier Belot. "A 60 GHz reconfigurable active phase shifter based on a vector modulator in 65 nm CMOS technology." International Journal of Microwave and Wireless Technologies 8, no. 3 (March 10, 2016): 399–404. http://dx.doi.org/10.1017/s1759078716000167.

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This paper presents a 60 GHz reconfigurable active phase shifter based on a vector modulator implemented in 65 nm complementary metal–oxide–semiconductor technology. This circuit is based on the recombination of two differential paths in quadrature. The proposed vector modulator allows us to generate a phase shift between 0° and 360°. The voltage gain varies between −13 and −9 dB in function of the phase shift generated with a static consumption between 26 and 63 mW depending on its configuration.

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13

Abbasi, Muhammad Ali Babar, Marco A. Antoniades, and Symeon Nikolaou. "A Compact Reconfigurable NRI-TL Metamaterial Phase Shifter for Antenna Applications." IEEE Transactions on Antennas and Propagation 66, no. 2 (February 2018): 1025–30. http://dx.doi.org/10.1109/tap.2017.2777520.

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14

A. Khan, Iqbal, and Ahmed M. Nahhas. "Reconfigurable Voltage Mode Phase Shifter using Low Voltage Digitally Controlled CMOS CCII." Electrical and Electronic Engineering 2, no. 4 (August 9, 2012): 226–29. http://dx.doi.org/10.5923/j.eee.20120204.08.

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15

Xiong, Yitong, Xiaoping Zeng, and Junbing Li. "A Frequency-Reconfigurable CMOS Active Phase Shifter for 5G mm-Wave Applications." IEEE Transactions on Circuits and Systems II: Express Briefs 67, no. 10 (October 2020): 1824–28. http://dx.doi.org/10.1109/tcsii.2019.2958665.

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16

Jen Neei, Soh, Muzammil Jusoh, Thennarasan Sabapathy, Samir AlBawri, Mohd Najib Yaasin, Hasliza Abd Rahim, Tariq Abd Latef, Mahmud A. M. Albreem, and Mohamed Nasrun Osman. "Analysis of Electronically Reconfigurable Beam Steering Antenna Array using Phase Shifter Technique." Journal of Physics: Conference Series 1339 (December 2019): 012055. http://dx.doi.org/10.1088/1742-6596/1339/1/012055.

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17

Can Ding, Y. Jay Guo, Pei-Yuan Qin, and Yintang Yang. "A Compact Microstrip Phase Shifter Employing Reconfigurable Defected Microstrip Structure (RDMS) for Phased Array Antennas." IEEE Transactions on Antennas and Propagation 63, no. 5 (May 2015): 1985–96. http://dx.doi.org/10.1109/tap.2015.2408357.

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18

Li, He, Shanghong Zhao, Tao Lin, Kun Zhang, Wei Jiang, Guodong Wang, and Xuan Li. "A filterless reconfigurable frequency mixer based on a wideband photonic microwave phase shifter." Optics Communications 475 (November 2020): 126224. http://dx.doi.org/10.1016/j.optcom.2020.126224.

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19

Palomares-Caballero, Angel, Antonio Alex-Amor, Pablo Escobedo, Juan Valenzuela-Valdes, and Pablo Padilla. "Low-Loss Reconfigurable Phase Shifter in Gap-Waveguide Technology for mm-Wave Applications." IEEE Transactions on Circuits and Systems II: Express Briefs 67, no. 12 (December 2020): 3058–62. http://dx.doi.org/10.1109/tcsii.2020.3000058.

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20

Kuhestani, Hamed, Mohammad Naser-Moghadasi, Mahshid Maleki, and Ferdows B. Zarrabi. "Phase shifter designing base on half mode substrate integrated waveguide with reconfigurable quality." Microwave and Optical Technology Letters 57, no. 11 (August 28, 2015): 2562–67. http://dx.doi.org/10.1002/mop.29399.

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21

Carrasco, Eduardo, Mariano Barba, Manuel Arrebola, and Jose A. Encinar. "Recent Developments of Reflectarray Antennas for Reconfigurable Beams Using Surface-Mounted RF-MEMS." International Journal of Antennas and Propagation 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/386429.

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Some of the most recent developments in reconfigurable reflectarrays using surface-mounted RF-MEMS, which have been developed at the Universidad Politécnica de Madrid, are summarized in this paper. The results include reconfigurable elements based on patches aperture-coupled to delay lines in two configurations: single elements and gathered elements which form subarrays with common phase control. The former include traditional aperture-coupled elements and a novel wideband reflectarray element which has been designed using two stacked patches. The latter are proposed as a low cost solution for reducing the number of electronic control devices as well as the manufacturing complexity of large reflectarrays. The main advantages and drawbacks of the grouping are evaluated in both pencil and shaped-beam antennas. In all the cases, the effects of the MEMS switches and their assembly circuitry are evaluated when they are used in a 2-bit phase shifter which can be extended to more bits, demonstrating that the proposed elements can be used efficiently in reconfigurable-beam reflectarrays.

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22

Zhang, Zikang, Shuang Liu, Tianlong Wen, Dainan Zhang, Lichuan Jin, Yulong Liao, Xiaoli Tang, and Zhiyong Zhong. "Bias-free reconfigurable magnonic phase shifter based on a spin-current controlled ferromagnetic resonator." Journal of Physics D: Applied Physics 53, no. 10 (December 23, 2019): 105002. http://dx.doi.org/10.1088/1361-6463/ab5c81.

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23

Chen, Weicong, Lin Bai, Wankai Tang, Shi Jin, Wei Xiang Jiang, and Tie Jun Cui. "Angle-Dependent Phase Shifter Model for Reconfigurable Intelligent Surfaces: Does the Angle-Reciprocity Hold?" IEEE Communications Letters 24, no. 9 (September 2020): 2060–64. http://dx.doi.org/10.1109/lcomm.2020.2993961.

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24

Lin, Yen-Heng, and Zuo-Min Tsai. "Frequency-Reconfigurable Phase Shifter Based on a 65-nm CMOS Process for 5G Applications." IEEE Transactions on Circuits and Systems II: Express Briefs 68, no. 8 (August 2021): 2825–29. http://dx.doi.org/10.1109/tcsii.2021.3070051.

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25

Iannacci, Jacopo, Giuseppe Resta, Alvise Bagolini, Flavio Giacomozzi, Elena Bochkova, Evgeny Savin, Roman Kirtaev, Alexey Tsarkov, and Massimo Donelli. "RF-MEMS Monolithic K and Ka Band Multi-State Phase Shifters as Building Blocks for 5G and Internet of Things (IoT) Applications." Sensors 20, no. 9 (May 3, 2020): 2612. http://dx.doi.org/10.3390/s20092612.

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RF-MEMS, i.e., Micro-Electro-Mechanical Systems (MEMS) for Radio Frequency (RF) passive components, exhibit interesting characteristics for the upcoming 5G and Internet of Things (IoT) scenarios, in which reconfigurable broadband and frequency-agile devices, like high-order switching units, tunable filters, multi-state attenuators, and phase shifters will be necessary to enable mm-Wave services, small cells, and advanced beamforming. In particular, satellite communication systems providing high-speed Internet connectivity utilize the K and Ka bands, which offer larger bandwidth compared to lower frequencies. This paper focuses on two design concepts of multi-state phase shifter designed and manufactured in RF-MEMS technology. The networks feature 4 switchable stages (16 states) and are developed for the K and Ka bands. The proposed phase shifters are realized in a surface micromachining RF-MEMS technology and the experimentally measured parameters are compared with Finite Element Method (FEM) multi-physical electromechanical and RF simulations. The simulated phase shifts at both the operating bands fit well the measured value, despite the measured losses (S21) are larger than 5–7 dB if compared to simulations. However, such a non-ideality has a technological motivation that is explained in the paper and that will be fixed in the manufacturing of future devices.

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26

Zivarian, Hossein, and Abbas Zarifkar. "A reconfigurable scheme for realization of electro-optical logic gate based on silicon-graphene Mach–Zhender interferometer." International Journal of Modern Physics B 33, no. 04 (February 10, 2019): 1950005. http://dx.doi.org/10.1142/s021797921950005x.

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In this paper, we propose a reconfigurable scheme for implementation of an electro-optical logic gate by utilizing a Mach–Zehnder interferometer (MZI)-based structure. In order to achieve high performance and small footprint for the proposed logic gate, we have used a compact, broadband, low power and high speed MZI-based electro-optical switch which consists of a silicon-graphene slot waveguide as phase shifter in each arm of the MZI structure. Our design can perform electro-optical AND, OR and XOR logic functions in three different operational modes by using three electrical control signals. The functionality of the reconfigurable electro-optical logic gate is investigated with the help of eye diagram analysis for all three operational modes. Simulation results show that the proposed reconfigurable logic gate is able to work under at least 62.5 Gbit/s with high extinction ratio (ER) about 24.6 dB for transverse electric polarization mode at telecommunication wavelength of 1.55 [Formula: see text]m.

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27

Lin, Feng, and Huizhong Deng. "Continuously Tunable True-Time-Delay Phase Shifter Based on Transmission Lines With Simultaneously Reconfigurable Impedance and Phase Constant." IEEE Transactions on Microwave Theory and Techniques 67, no. 12 (December 2019): 4714–23. http://dx.doi.org/10.1109/tmtt.2019.2944612.

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28

Deng, K. L., D. T. K. Tong, C. K. Chan, K. F. Dreyer, and J. E. Johnson. "Rapidly reconfigurable optical channel selector using RF digital phase shifter for ultra-fast OTDM networks." Electronics Letters 36, no. 20 (2000): 1724. http://dx.doi.org/10.1049/el:20001233.

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29

Yang, Jun, Sheng Gao, Peng Wang, Zhiping Yin, Hongbo Lu, Weien Lai, Ying Li, and Guangsheng Deng. "Design and Experimental Verification of a Liquid Crystal-Based Terahertz Phase Shifter for Reconfigurable Reflectarrays." Journal of Infrared, Millimeter, and Terahertz Waves 41, no. 6 (May 27, 2020): 665–74. http://dx.doi.org/10.1007/s10762-020-00705-2.

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30

Hu, Jiadong, Yue Li, and Zhijun Zhang. "A Novel Reconfigurable Miniaturized Phase Shifter for 2-D Beam Steering 2-Bit Array Applications." IEEE Microwave and Wireless Components Letters 31, no. 4 (April 2021): 381–84. http://dx.doi.org/10.1109/lmwc.2021.3057223.

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31

Gaebler, A., A. Moessinger, F. Goelden, A. Manabe, M. Goebel, R. Follmann, D. Koether, et al. "Liquid Crystal-Reconfigurable Antenna Concepts for Space Applications at Microwave and Millimeter Waves." International Journal of Antennas and Propagation 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/876989.

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Novel approaches of tunable devices for millimeter wave applications based on liquid crystal (LC) are presented. In the first part of the paper, a novel concept of a tunable LC phase shifter realized in Low Temperature Cofired Ceramics technology is shown while the second part of the paper deals with a tunable high-gain antenna based on an LC tunable reflectarray. The reflectarray features continuously beam scanning in between±25∘. Also first investigations on radiation hardness of LCs are carried out, indicating that LCs might be suitable for space applications.

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32

Grant, Nolan, Mahdi Haghzadeh, and Alkim Akyurtlu. "Fully Printed Static Gain Reconfigurable Conformal Patch Antenna Arrays." International Symposium on Microelectronics 2017, no. 1 (October 1, 2017): 000604–7. http://dx.doi.org/10.4071/isom-2017-tha44_114.

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Abstract This work presents design and fabrication processes for creating statically gain-reconfigurable conformal patch array antennas. In our previous work, a fully printable and conformal antenna array on a flexible substrate with a new Left-Handed Transmission Line (LHTL) phase shifter based on a Barium Strontium Titanate (BST)/polymer composite was computationally studied for radiation pattern correction and beam steering applications. In this work, additive manufacturing techniques were used to experimentally demonstrate the phase compensation needed to improve the degraded performance of the conformal arrays. An Aerosol Jet direct-write printer was used to print several patch antenna arrays and was tested in an anechoic chamber to establish baseline gain metrics. Once a baseline is established, a high dielectric constant material (BST nano-ink) was dispensed onto the IDCs in several configurations, to provide the necessary phase compensation. The antennas were retested and the changes in their gain profiles were investigated. The findings of this work and the proposed method allow for gain compensation of curved conformal antennas and post-production modification of the radiation pattern of antenna arrays. This work has potential applications in the automotive industry due to the low cost of production and the ability to be integrated onto curved conformal surfaces without interfering with super structure or other mechanical design related criteria.

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33

Gao, Ruo-Qian, Qi Song, Hai Liu, Jin-Bo Gao, Xiao-Yi Wang, Bayanheshig, Chao Li, et al. "Design of near-Infrared reconfigurable metalens on Silicon-On-Insulator (SOI) platform with Fabry–Perrot phase shifter." Optics Communications 446 (September 2019): 56–63. http://dx.doi.org/10.1016/j.optcom.2019.04.057.

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34

Dey, Sukomal, and Shiban K. Koul. "10–25 GHz frequency reconfigurable MEMS 5-bit phase shifter using push–pull actuator based toggle mechanism." Journal of Micromechanics and Microengineering 25, no. 6 (May 15, 2015): 065011. http://dx.doi.org/10.1088/0960-1317/25/6/065011.

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35

Rana, Biswarup, In-Gon Lee, and Ic-Pyo Hong. "Experimental Characterization of 2 × 2 Electronically Reconfigurable 1 Bit Unit Cells for a Beamforming Transmitarray at X Band." Journal of Electromagnetic Engineering and Science 21, no. 2 (April 30, 2021): 153–60. http://dx.doi.org/10.26866/jees.2021.21.2.153.

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This paper proposes a reconfigurable unit cell for a transmitarray operating at the X band. The unit cell consists of an active patch, a passive patch, and a phase shifter. The active patch has two PIN diodes that change the phase of 180° of the transmitted waves. The passive and active patches both have circular slots to enhance the bandwidth of the transmitted wave. We also propose a new type of experimental characterization technique to measure the performance of the unit cells at the X band without fabricating the entire transmitarray. Instead of a 1 unit cell as described in the literature, we propose 2 × 2 unit cells to measure the performance of unit cells using the X band waveguide. The waveguide consists of a WR-90 section and a rectangular to square waveguide transition section that can be fit to our proposed structure. A good agreement between simulated and measured results was found.

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36

Gurbuz, Ozan Dogan, and Gabriel M. Rebeiz. "A 1.6–2.3-GHz RF MEMS Reconfigurable Quadrature Coupler and Its Application to a 360$^{\circ } $ Reflective-Type Phase Shifter." IEEE Transactions on Microwave Theory and Techniques 63, no. 2 (February 2015): 414–21. http://dx.doi.org/10.1109/tmtt.2014.2379258.

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37

Rana, Biswarup, In-Gon Lee, and Ic-Pyo Hong. "Experimental Characterization of 2 × 2 Electronically Reconfigurable Polarization Converter Unit Cells at X-Band." International Journal of Antennas and Propagation 2021 (June 28, 2021): 1–9. http://dx.doi.org/10.1155/2021/5536864.

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In this paper, an electronically reconfigurable polarization converter unit cell operating at X-band is proposed. The polarization converter unit cell consists of a passive patch, a phase shifter, and an active patch. There are two PIN diodes on the active patch. By switching the bias conditions of those PIN diodes, an electronically reconfigurable polarization converter is conceived. Both the passive and active patches are circular, and there are circular types of slots on both patches to enhance the operating bandwidth. To compensate for the capacitance introduced by PIN diodes, an equivalent capacitance structure is introduced on the active patch. 2 × 2 unit cells are designed to check the performance of the unit cell for polarization conversion applications. In addition, a novel type of experimental characterization technique is proposed to check the performance of polarization conversion using 2 × 2 unit cells. Two WR-90 waveguide sections, two rectangular to square sections, and a power supply are taken for the measurements. The rectangular to square waveguide transition section is designed in such a way so that 2 × 2 unit cells can be perfectly adjusted on the transition section and the performance of the 2 × 2 unit cells can be measured. The simulation results of the 8 × 8 array are also added to a miniaturized X-band horn antenna to check the performance of the overall array.

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38

Bhatia, Vinay, Sukhdeep Kaur, Kuldeep Sharma, Punam Rattan, Vishal Jagota, and Mohammed Abdella Kemal. "Design and Simulation of Capacitive MEMS Switch for Ka Band Application." Wireless Communications and Mobile Computing 2021 (July 12, 2021): 1–8. http://dx.doi.org/10.1155/2021/2021513.

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In this paper, RF MEMS switch with capacitive contact is designed and analyzed for Ka band application. A fixed-fixed beam/meander configuration has been used to design the switch for frequency band 10 GHz to 40 GHz. Electromagnetic and electromechanical analysis of three-dimensional (3D) structure/design has been analyzed in multiple finite element method (FEM) based full-wave simulator (Coventorware and high-frequency structure simulator). A comparative study has also been carried out in this work. The high resistivity silicon substrate ( tan δ = 0.010 , ρ > 8 k Ω − cm , ε r = 11.8 ) with a thickness of 675 ± 25 μ m has been taken for switch realization. The designed structure shows an actuation voltage of around 9.2 V. Impedance matching for the switch structure is well below 20 dB, loss in upstate, i.e., insertion loss >0.5 dB, and isolation of >25 dB throughout the frequency band is observed for the aforesaid structure. Furthermore, to increase the RF parameters, AIN dielectric material has been used instead of SiO2 resulting in capacitance in downstate that increases hence improved the isolation. The proposed switch can be utilized in various potential applications such as any switching/tunable networks phased-array radar, reconfigurable antenna, RF phase shifter, mixer, biomedical, filter, and any transmitter/receiver (T/R) modules.

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39

Sahbani, F., N. Tentillier, C. Legrand, K. Blary, A. Gharsallah, and A. Gharbi. "Coplanar Liquid Crystal Reconfigurable Phase-Shifters." Molecular Crystals and Liquid Crystals 542, no. 1 (June 30, 2011): 204/[726]—212/[734]. http://dx.doi.org/10.1080/15421406.2011.570587.

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40

Debogovic, Tomislav, and Julien Perruisseau-Carrier. "MEMS-Reconfigurable Metamaterials and Antenna Applications." International Journal of Antennas and Propagation 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/138138.

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This paper reviews some of our contributions to reconfigurable metamaterials, where dynamic control is enabled by microelectromechanical systems (MEMS) technology. First, we show reconfigurable composite right-/left-handed transmission lines (CRLH-TLs) having state of the art phase velocity variation and loss, thereby enabling efficient reconfigurable phase shifters and leaky-wave antennas (LWA). Second, we present very low loss metasurface designs with reconfigurable reflection properties, applicable in reflectarrays and partially reflective surface (PRS) antennas. All the presented devices have been fabricated and experimentally validated. They operate in X- and Ku-bands.

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41

Bhardwaj, Shubhendu, S. K. Yeahia Been Sayeed, Jose Solis Camara, Dieff Vital, and P. M. Raj. "Reconfigurable mm Wave Flexible Packages with Ultra-thin Fan-Out Embedded Tunable Ceramic IPDs." International Symposium on Microelectronics 2019, no. 1 (October 1, 2019): 000434–37. http://dx.doi.org/10.4071/2380-4505-2019.1.000434.

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Abstract In this work, we show the use of tunable ceramic type integrated passive devices for mm-wave antenna applications. The specific illustrations are made using BST (barium strontium titanate) based capacitator, whose capacitances can be changed by electronically controlled permittivity of the BST material. BST capacitors with capacitance variation from 0.5 pF to 1 pF are designed (requiring a control voltage between 0 to 5 V) and using these capacitors, RF-components are designed. Specifically, we show a design of reconfigurable band-pass filter in 28 GHz band and reconfigurable phase-shifters in 28 GHz and 38 GHz mm Wave bands. We show that the electronic control provides enough phase-shift variation for ±90° beam-steering antennas covering the entire broadside scanning range in 28 GHz and 38 GHz bands. Furthermore, bandpass filter that is reconfigurable around 28 GHz band is designed to demonstrate full band reconfigurability to block undesired signals that enter the receiver chains for jamming applications.

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Li, Xia, Chen Shen, Xiaohan Yu, Yanqiong Zhang, Chao Chen, and Xiaoxu Zhang. "Bandwidth-tunable optical filter based on microring resonator and MZI with Fano resonance." Journal of Optics 49, no. 4 (September 30, 2020): 427–32. http://dx.doi.org/10.1007/s12596-020-00642-2.

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Abstract A bandwidth-tunable optical filter is fabricated by combining Mach–Zehnder interferometer (MZI) and microring resonator. Both bandwidth red-shift and blue-shift are observed in the experiment. The bandwidth can be tuned from 0.46 to 3.09 nm by controlling two phase shifters. The device also shows an extinction ratio higher than 25 dB. Potential applications are integrated optical signal processing such as reconfigurable filtering and channel selecting in wavelength division multiplexer.

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Fezai, Faycel, Cyrille Menudier, Marc Thevenot, Eric Arnaud, and Thierry Monediere. "Reconfigurable Parasitic Element Antenna Using Reflection Phase Shifters." IEEE Antennas and Wireless Propagation Letters 14 (2015): 775–78. http://dx.doi.org/10.1109/lawp.2014.2377592.

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Eom, Soon-Young, Ic-Pyo Hong, and Jong-Myeon Kim. "Broadband Printed Cross-Dipole Element with Four Polarization Reconfigurations for Mobile Base Station Array Antenna Applications." International Journal of Antennas and Propagation 2011 (2011): 1–10. http://dx.doi.org/10.1155/2011/427015.

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This paper describes a broadband printed cross-dipole element with four polarization reconfigurations (BPCDE_PR). The BPCDE_PR can configure two linear and two circular polarizations in the operating band of 1.7–2.5 GHz. To implement the broadband polarization reconfigurations, switched network type broadband phase shifters are proposed and designed. The fabricated BPCDE_PR prototype with switched network including broadband phase shifters shows good electrical performances and the desired polarization reconfigurable functions in the operating band.

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Polat, Ersin, Henning Tesmer, Roland Reese, Matthias Nickel, Dongwei Wang, Peter Schumacher, Rolf Jakoby, and Holger Maune. "Reconfigurable Millimeter-Wave Components Based on Liquid Crystal Technology for Smart Applications." Crystals 10, no. 5 (April 27, 2020): 346. http://dx.doi.org/10.3390/cryst10050346.

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This paper presents recent development of tunable microwave liquid crystal (LC) components in the lower millimeter wave (mmW) regime up to the W-band. With the utilization of increasing frequency, conventional metallic waveguide structures prove to be impractical for LC-based components. In particular, the integration of the electric bias network is extremely challenging. Therefore, dielectric waveguides are a promising alternative to conventional waveguides, since electrodes can be easily integrated in the open structure of dielectric waveguides. The numerous subcategories of dielectric waveguides offer a high degree of freedom in designing smart millimeter wave components such as tunable phase shifters, filters and steerable antennas. Recent research resulted in many different realizations, which are analyzed in this paper. The first demonstrators of phased array antennas with integrated LC-based phase shifters are reviewed and compared. In addition, beam steering with a single antenna type is shown. Furthermore, the possibility to realize tunable filters using LC-filled dielectric waveguides is demonstrated.

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Zhang, Tianyu, Wenquan Che, Haidong Chen, and Quan Xue. "Reconfigurable Impedance Matching Networks With Controllable Phase Shift." IEEE Transactions on Circuits and Systems II: Express Briefs 65, no. 11 (November 2018): 1514–18. http://dx.doi.org/10.1109/tcsii.2017.2754440.

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Li, Xiangtao, and Minghao Yin. "Hybrid Differential Evolution with Biogeography-Based Optimization for Design of a Reconfigurable Antenna Array with Discrete Phase Shifters." International Journal of Antennas and Propagation 2011 (2011): 1–12. http://dx.doi.org/10.1155/2011/685629.

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Multibeam antenna arrays have important applications in communications and radar. This paper presents a new method of designing a reconfigurable antenna with quantized phase excitations using a new hybrid algorithm, called DE/BBO. The reconfigurable design problem is to find the element excitation that will result in a sector pattern main beam with low sidelobes with additional requirement that the same excitation amplitudes applied to the array with zero-phase should be in a high directivity, low sidelobe pencil-shaped main beam. In order to reduce the effect of mutual coupling between the antenna-array elements, the dynamic range ratio is minimized. Additionally, compared with the continuous realization and subsequent quantization, experimental results indicate that the performance of the discrete realization of the phase excitation value can be improved. In order to test the performances of hybrid differential evolution with biogeography-based optimization, the results of some state-of-art algorithms are considered, for the purposed of comparison. Experiment results indicate the better performance of the DE/BBO.

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Kamoda, Hirokazu, Toru Iwasaki, Jun Tsumochi, Takao Kuki, and Osamu Hashimoto. "60-GHz Electronically Reconfigurable Large Reflectarray Using Single-Bit Phase Shifters." IEEE Transactions on Antennas and Propagation 59, no. 7 (July 2011): 2524–31. http://dx.doi.org/10.1109/tap.2011.2152338.

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Zhang, Hongliang, Boya Di, Lingyang Song, and Zhu Han. "Reconfigurable Intelligent Surfaces Assisted Communications With Limited Phase Shifts: How Many Phase Shifts Are Enough?" IEEE Transactions on Vehicular Technology 69, no. 4 (April 2020): 4498–502. http://dx.doi.org/10.1109/tvt.2020.2973073.

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Rahimi, Eesa, and Kürşat Şendur. "Thermally controlled femtosecond pulse shaping using metasurface based optical filters." Nanophotonics 7, no. 3 (February 23, 2018): 659–68. http://dx.doi.org/10.1515/nanoph-2017-0089.

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AbstractShaping of the temporal distribution of the ultrashort pulses, compensation of pulse deformations due to phase shift in transmission and amplification are of interest in various optical applications. To address these problems, in this study, we have demonstrated an ultra-thin reconfigurable localized surface plasmon (LSP) band-stop optical filter driven by insulator-metal phase transition of vanadium dioxide. A Joule heating mechanism is proposed to control the thermal phase transition of the material. The resulting permittivity variation of vanadium dioxide tailors spectral response of the transmitted pulse from the stack. Depending on how the pulse’s spectrum is located with respect to the resonance of the band-stop filter, the thin film stack can dynamically compress/expand the output pulse span up to 20% or shift its phase up to 360°. Multi-stacked filters have shown the ability to dynamically compensate input carrier frequency shifts and pulse span variations besides their higher span expansion rates.

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