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Relevant bibliographies by topics / Six-port reflectometer

Academic literature on the topic 'Six-port reflectometer'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 May 2022

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Dissertations / Theses
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Journal articles on the topic "Six-port reflectometer"

1

Yeo, S. P., and A. L. Ang. "Six-port reflectometer." Electronics Letters 23, no. 21 (1987): 1160. http://dx.doi.org/10.1049/el:19870808.

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2

Zhang, Y., G. Colef, Y. Li, and G. Eichmann. "Six-port optical reflectometer." IEEE Transactions on Instrumentation and Measurement 40, no. 5 (1991): 869–71. http://dx.doi.org/10.1109/19.106316.

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3

Brunetti, L. "Six-port reflectometer: some geometric Gamma -estimators." IEEE Transactions on Instrumentation and Measurement 40, no. 5 (1991): 866–69. http://dx.doi.org/10.1109/19.106315.

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4

Hunter, J. D., and P. I. Somlo. "Simple derivation of six-port reflectometer equations." Electronics Letters 21, no. 9 (1985): 370. http://dx.doi.org/10.1049/el:19850264.

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5

Hsin-Chia Lu and Tah-Hsiung Chu. "Microwave diversity imaging using six-port reflectometer." IEEE Transactions on Microwave Theory and Techniques 47, no. 1 (1999): 84–87. http://dx.doi.org/10.1109/22.740082.

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6

Bannister, D. J., J. P. Ide, and M. Perkins. "Improved six-port reflectometer based on symmetrical five-port junction." Electronics Letters 28, no. 4 (1992): 406. http://dx.doi.org/10.1049/el:19920255.

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7

Yeo, S. P. "Analysis of symmetrical six-port junction when configured as a six-port reflectometer." IEEE Transactions on Instrumentation and Measurement 41, no. 2 (April 1992): 193–97. http://dx.doi.org/10.1109/19.137346.

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8

Ghosh, Debapratim, and Girish Kumar. "Six-Port Reflectometer Using Edge-Coupled Microstrip Couplers." IEEE Microwave and Wireless Components Letters 27, no. 3 (March 2017): 245–47. http://dx.doi.org/10.1109/lmwc.2017.2661708.

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9

Ji Jun Yao and Swee Ping Yeo. "Six-Port Reflectometer Based on Modified Hybrid Couplers." IEEE Transactions on Microwave Theory and Techniques 56, no. 2 (February 2008): 493–98. http://dx.doi.org/10.1109/tmtt.2007.914626.

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Qian, Cong-Zheng. "An Improved Method for Six-Port Reflectometer Calibration." IEEE Transactions on Instrumentation and Measurement IM-34, no. 4 (December 1985): 611–15. http://dx.doi.org/10.1109/tim.1985.4315419.

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Dissertations / Theses on the topic "Six-port reflectometer"

1

Li, Chaojiang. "Circuit modules for six-port reflectometer on chip." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1239894688/.

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2

Wayne, Walter. "An automated matching network incorporating a six-port reflectometer." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/26545.

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In this thesis an automated matching network is investigated as a means to reduce mismatch loss in circuits whose impedance characteristics vary during operation. The automated matching network incorporates a six-port network to measure impedance and a tunable circuit is implemented using varactor diodes to provide continuously variable impedances. A novel implementation for two-port measurements using a single reflectometer is presented. The thesis concentrates on variable gain amplifier applications as these are common in wireless applications and matching is rarely maintained over the operating range of the device. A six-port reflectometer is implemented using off-the-shelf components. The tunable network is implemented using a miniature hybrid microwave integrated circuit (MHMIC) process with varactor diodes used as variable capacitances. Gain matching of a transistor amplifier is tested under various device biases. The project establishes design guidelines for a tunable matching network using continuously variable impedances. The feasibility of the automated matching network concept is also proven. Based on the results, several proposals are made for future work using automated matching networks.

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3

Hjipieris, G. "Millimetre wave six-port reflectometry using image and dielectric guides." Thesis, University of Kent, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354575.

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4

Zaichenko, O., N. Zaichenko, P. Galkin, and L. Golovkina. "Realisation of Iterative Algorithm of Six-Port Reflectometer on FPGA Using Logarithm Function." Thesis, 2020. https://openarchive.nure.ua/handle/document/17533.

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The six-port reflectometer is an universal measurement device of microwave range for signal power and tract termination reflection coefficient definition. The definition of such tract and termination parameters is made by sensor signal processing. As processing algorithm can be used least squares estimation. The advantages of least squares estimation is accuracy. The condition of its use is redundandant sensor number. The least squares estimation feature is invers matrix computation. As to FPGA realisation of algorithm there are problems connected to matrix inversion. So the report is devoted to attempt to simplify six-port reflectometer sensor signal processing and to avoid inverse matrix computation.

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5

Hui, Dan. "Non-contacting six-port reflectometers for in-situ measurement of microwave circuit modules /." 2008. http://wwwlib.umi.com/dissertations/fullcit/3289600.

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6

Chang, Chau-Fu, and 張朝復. "The Design of Six Port Reflectometers Suitable for Using in the Automatic Impedance Matching Circuit." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/76964403044722298304.

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碩士
華梵大學
電子工程學系碩士班
93
ABSTACT The purpose of this thesis is on "the design of six-port reflectometers suitable for using in the automatic impedance matching circuit". It is well known that this reflectometer can accurately calculate the reflection coefficient of the device under test(DUT) by simply using the measured microwave powers. The traditional reflectometer uses more microwave power to do the reflection coefficient measurement job. Therefore, there is less transmitting to DUT. This type of reflectometer is not suitable to corporate with tunable impedance matching circuits to form a high efficiency automatic impedance matching circuit. Several six-port reflectometers, which have appeared in documents, are modified in this thesis to meet the research purpose requirement. These six-port reflectometers include: (1) the network made by a coupler and four quadrature hybrids, (2) the network made by a coupler and four quadrature hybrids and a T power divider, (3) the network made by a symmetrical five-port ring structure and a coupler, (4) the network built from three couple lines. The computer optimization method is used to calibrate these reflectometers. The system constants of these reflectometers are successfully obtained from calibration. Simulation shows that all these four reflectometers can get satisfactory measurement results. This research has successfully combined the six port network and power measurement equipments to form an automatic reflectometer. By using the personal computer(PC) to read the output power data from measurement requirements, the reflectometer can automatically calibrate the system constants. These constants are used to automatically calculate the reflection coefficient of DUT. Experimental results verify that the four reflectometers all can measure the accurate reflection coefficient in the designed frequency band. They are all suitable for constructing the automatic impedance matching circuit. Comparisons between these four reflectometers are also made according to experimental results in the thesis.

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Books on the topic "Six-port reflectometer"

1

Sagoo, Balraj Singh. Characterisation of one & two port networks using Six-port reflectometers under pulsed RF excitations. 1996.

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Conference papers on the topic "Six-port reflectometer"

1

Odrobina, Szczepan, Kamil Staszek, Krzysztof Wincza, and Slawomir Gruszczynski. "Wideband six-port reflectometer." In 2018 14th International Conference on Advanced Trends in Radioelecrtronics, Telecommunications and Computer Engineering (TCSET). IEEE, 2018. http://dx.doi.org/10.1109/tcset.2018.8336273.

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Staszek, Kamil, Slawomir Gruszczynski, and Krzysztof Wincza. "Ultra-broadband six-port reflectometer." In 2014 14th Mediterranean Microwave Symposium (MMS). IEEE, 2014. http://dx.doi.org/10.1109/mms.2014.7088940.

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3

Chahine, S. A., B. Huyart, and Z. Osman. "Performance comparison between six-port and five-port reflectometer." In Proceedings of the Twentieth National Radio Science Conference (NRSC'2003). IEEE, 2003. http://dx.doi.org/10.1109/nrsc.2003.157316.

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Majer, Norbert, Jan Haring, and Vladimir Wieser. "DOA Estimation by Six-port Reflectometer Array." In 2007 17th International Conference Radioelektronika. IEEE, 2007. http://dx.doi.org/10.1109/radioelek.2007.371481.

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5

Bilik, V., V. Raffaj, and J. Bezek. "A New Extremely Wideband Lumped Six-Port Reflectometer." In 20th European Microwave Conference, 1990. IEEE, 1990. http://dx.doi.org/10.1109/euma.1990.336275.

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Drobakhin, O. O. "A novel approach to six-port reflectometer analysis." In 2015 International Conference on Antenna Theory and Techniques (ICATT). IEEE, 2015. http://dx.doi.org/10.1109/icatt.2015.7136874.

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7

Xiong, X. Z., C. Liao, and H. Q. Xiao. "An optimised calibration method of six-port reflectometer." In 2008 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2008. http://dx.doi.org/10.1109/icmmt.2008.4540817.

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8

Stumper, Ulrich. "A Six-Port Reflectometer Operating at Submillimeter Wavelengths." In 15th European Microwave Conference, 1985. IEEE, 1985. http://dx.doi.org/10.1109/euma.1985.333497.

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9

Gong, Ke. "Estimation of the uncertainty of mmw six-port reflectometer." In 16th International Conference on Infrared and Millimeter Waves. SPIE, 1991. http://dx.doi.org/10.1117/12.2297895.

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10

Venter, Razvan G., Rui Hou, Koen Buisman, Marco Spirito, Klaus Werner, and Leo C. N. de Vreede. "A package-integratable six-port reflectometer for power devices." In 2014 IEEE/MTT-S International Microwave Symposium - MTT 2014. IEEE, 2014. http://dx.doi.org/10.1109/mwsym.2014.6848549.

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