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Articles de revues sur le sujet « Active-RC Filter »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 10 mars 2023

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1

Koziel, Slawomir. "GENERAL STRUCTURE OF INTEGRATOR-BASED CONTINUOUS-TIME ACTIVE-RC FILTER AND APPLICATIONS." SYNCHROINFO JOURNAL 7, no. 6 (2021): 8–13. http://dx.doi.org/10.36724/2664-066x-2021-7-6-8-13.

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In the paper, a general structure of integrator-based continuous-time Active-RC filter is presented. More specifically, filter structures containing inverting amplifiers and passive feedback network are considered. The structure is analyzed using matrix description. The extensions of the model that take into account finite DC gain and finite bandwidth of operational amplifiers as well as other non-ideal effects are presented. The matrix-based approach is formulated especially for efficient use in computer analysis and design of Active-RC filters. An application example of the proposed approach to obtain OPAMP specifications for 3rd order low-pass Chebyshev filter for Analog Front End for VDSL is given. In this paper, we consider a general Active-RC filter topology suitable for computer-aided analysis, design and optimization of Active-RC filters. The structure is not the most general one, since it is restricted to filter topologies containing only inverting amplifiers (especially integrators) and RC feedback network.

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2

Aronhime, P. "RC active filter design handbook." Proceedings of the IEEE 74, no. 12 (1986): 1804. http://dx.doi.org/10.1109/proc.1986.13696.

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3

Natarajan, S. "RC active filter design handbook." Proceedings of the IEEE 75, no. 9 (1987): 1341–42. http://dx.doi.org/10.1109/proc.1987.13888.

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4

SALAMA, K. N., and A. M. SOLIMAN. "ACTIVE RC FILTERS USING OPERATIONAL TRANSRESISTANCE AMPLIFIERS." Journal of Circuits, Systems and Computers 08, no. 04 (1998): 507–16. http://dx.doi.org/10.1142/s0218126698000304.

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A new generalized universal filter configuration using the Operational Transresistance Amplifier is proposed. Twelve different filter circuits are derived from the general configuration. The circuits are designed to provide Low-pass, Band-pass, High-pass, All-pass and Notch responses through appropriate choice of admittances. The feasibility of this configuration in operating at high frequencies is presented. A detailed analysis taking the effect of the finite transresistance gain into consideration is presented. Self-compensation that requires no additional elements of some of the proposed filters is presented. The effectiveness of the proposed configuration is demonstrated by HSpice simulations.

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5

Inshakov, Yu M., and A. V. Belov. "Tunable Active Band-Pass RC-Filter." Journal of the Russian Universities. Radioelectronics, no. 2 (June 5, 2018): 20–25. http://dx.doi.org/10.32603/1993-8985-2018-21-2-20-25.

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This article provides a technique for design and simulation of an active second order band-pass filter with lineal tuning of Q-factor and independent tuning over a wide range of resonant frequency and transfer coefficient. The tunable band-pass RC-filter is required for selective processing of electric signals in radio engineering systems and devices, as well as in in-formation measuring systems, the acoustic and hydro acoustic equipment, including devices for noise and vibration analysis. The band-pass RC-filter is required in equalizers for allocation of useful signals.It is shown that the filter is constructed on the basis of the active second order correcting link with the use of tunable RCcircuit T-bridge. Calculation formulas for filter parameters are received, i.e. resonant frequency, polar Q-factor and transfer coefficient. It is shown that in the filter circuit these parameters can independently be tunable over a wide range. Resonant frequency of the filter is tuned by means of dual variable resistors with the Q-factor and transfer coefficient remaining constant.Polar Q-factor is regulated by change of resistance of the variable resistor with transfer coefficient and resonant frequency remaining constant. The transfer coefficient changes by means of another variable resistor.The conclusions of expressions for the tuned parameters of the suggested circuit of the active band-pass RC-filter confirming the research are provided, as well as the filter frequency characteristics and tunable parameter diagrams. Filter implementation is supported by simulation with the use of MicroCap10 software.

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6

Sussman-Fort, Stephen E., Laurent Billonnet, and Bernard Jarry. "Microwave, biquadratic, active-RC filter development." International Journal of RF and Microwave Computer-Aided Engineering 8, no. 2 (1998): 102–15. http://dx.doi.org/10.1002/(sici)1099-047x(199803)8:2<102::aid-mmce4>3.0.co;2-p.

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7

Matovic, Ana, and Marija Matovic. "Sensitivity optimization of direct form realization of active-RC all-pole filters." Facta universitatis - series: Electronics and Energetics 16, no. 2 (2003): 259–71. http://dx.doi.org/10.2298/fuee0302259m.

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In this paper, a procedure for direct form realization of Active-RC all-pole filters is presented. The filters are based on the resistance-capacitance ladder structure combined with the single operational amplifier and multiple feedback for complex pole realization. Recursive formulas have been developed that determine transfer function coefficients and derivation of transfer function coefficient with respect to filter components. These design equations are developed without knowing filter coefficients in terms of filter components in closed form, and they are necessary and sufficient for the filter design. Performance of these filters base been compared with the classical cascade form realization.

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8

UPATHAMKUEKOOL, CHAIRAT, AMORN JIRASEREE-AMORNKUN, and JIRAYUTH MAHATTANAKUL. "DESIGN OF LOW-VOLTAGE LOW-POWER COMPLEX ACTIVE-RC FILTERS." Journal of Circuits, Systems and Computers 22, no. 09 (2013): 1340003. http://dx.doi.org/10.1142/s0218126613400033.

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In this paper, novel realization of low-voltage low-power active-RC complex filters is presented. The previously proposed method to compensate for opamp non-idealities in real active-RC filter design, which is suitable for low-power low-voltage application, is extended such that it can be used in the case of complex filter design. Subsequently, fifth-order Chebyshev complex filter with 1-MHz center frequency, bandwidth and 0.5-dB bandpass ripple has been designed for Bluetooth application. Simulation results show that the designed complex filter consumes about 1 mW under 1-V single supply. Its image rejection ratio (IRR) and out-of-band third-order input intercept point (IIP3) are about 80 dB and 37.5 dBV p respectively.

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9

Stojanovic, Vidosav, Negovan Stamenkovic, and Nikola Stojanovic. "Active RC filter based implementation analysis part of two channel hybrid filter bank." Serbian Journal of Electrical Engineering 11, no. 4 (2014): 565–84. http://dx.doi.org/10.2298/sjee1404565s.

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In the present paper, a new design method for continuous-time powersymmetric active RC filters for Hybrid Filter Bank (HFB) is proposed. Some theoretical properties of continious-time power-symmetric filters bank in a more general perspective are studied. This includes the derivation of a new general analytical form, and a study of poles and zeros locations in s-plane. In the proposed design method the analytic solution of filter coefficients is solved in sdomain using only one nonlinear equation Finally, the proposed approximation is compared to standard approximations. It was shown that attenuation and group delay characteristic of the proposed filter lie between Butterworth and elliptic characteristics.

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10

Ishibashi, Y. "Active RC filter based on simulation of dissipative LC filters." IEE Proceedings - Circuits, Devices and Systems 141, no. 2 (1994): 101. http://dx.doi.org/10.1049/ip-cds:19949718.

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11

Huang, Huanzhang, and E. K. F. Lee. "Low voltage technique for active RC filter." Electronics Letters 34, no. 15 (1998): 1479. http://dx.doi.org/10.1049/el:19981046.

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12

Kladovščikov, Leonid, and Romualdas Navickas. "DESIGN AND INVESTIGATION OF RESISTOR MATRIX FOR ACTIVE ANALOG RC FILTERS." Mokslas - Lietuvos ateitis 12 (January 28, 2020): 1–7. http://dx.doi.org/10.3846/mla.2020.11419.

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Resistor matrixes are widely used in active RC filters as well as in self-tuning systems. Using self-tuning systems for active RC filters, it is possible to automatically tune various parameters of filter – cut-off frequency, gain and quality of filter. Most recent multiband transceivers employ higher order filters for fine bandpass filtering, thus number of passive components increases. In this work, a novel resistor matrix structure and design method is proposed. Proposed resistor matrix structure compensates both integrated circuit process variations and temperature change. Proposed resistor matrix is designed using 0.18 μm TSMC CMOS technology node and investigated using Cadence Virtuoso software. For most accurate comparison of different resistor matrices, all of them were designed in same technology node using design techniques described in other authors’ works.

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13

Lee, Han-Yeol, Yu-Jeong Hwang, and Young-Chan Jang. "Active-RC Channel Selection Filter with 40MHz Bandwidth and Improved Linearity." Journal of the Korea Institute of Information and Communication Engineering 17, no. 10 (2013): 2395–402. http://dx.doi.org/10.6109/jkiice.2013.17.10.2395.

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14

Pavlovic, Vlastimir, Aleksandar Ilic, and Zlata Cvetkovic. "Analysis of finite tolerance effect of critical pole on characteristics of selective RC active special Gegenbauer filters." Facta universitatis - series: Electronics and Energetics 26, no. 1 (2013): 31–46. http://dx.doi.org/10.2298/fuee1301031p.

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A precise analytical method for finding the explicit expression for the characteristic function of special Gegenbauer filters applicable to the design of RC active filters is suggested in this paper. The adverse parasite effects of limited finite gain-bandwidth product of operational amplifiers are decreased by using filters with the low pass-band attenuation. The new class of continual filter functions generated by analytical method by extremal Christoffel-Darboux formula for orthogonal Gegenbauer polynomials has two parameters. One is the filter order, n, and the second one is real free parameter, v, which provides a wide range of the amplitude responses. In this paper, a detailed analysis of attenuation and insertion loss in the bandwidth and around the stop-band cut-off frequency, wcs, are carried out using 3D plots and using examples of the effect of finite tolerance of quality factor module, Q, of critical conjugate-complex poles of considered RC active filter functions.

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15

Mohan, P. V. A. "Generation of OTA-C filter structures from active RC filter structures." IEEE Transactions on Circuits and Systems 37, no. 5 (1990): 656–60. http://dx.doi.org/10.1109/31.55014.

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16

Lee, Kyoung-Wook, and Chang-Wan Kim. "A CMOS Active-RC channel selection Low-Pass Filter for LTE-Advanced system." Journal of the Korean Institute of Information and Communication Engineering 16, no. 3 (2012): 565–70. http://dx.doi.org/10.6109/jkiice.2012.16.3.565.

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17

Liu, Dong, Baojin Li, Songtao Huang, Linguo Liu, Haozhe Wang, and Yukai Huang. "An Improved Frequency-Adaptive Virtual Variable Sampling-Based Repetitive Control for an Active Power Filter." Energies 15, no. 19 (2022): 7227. http://dx.doi.org/10.3390/en15197227.

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To eliminate the harmonics caused by nonlinear loads, repetitive controllers are widely applied as current controllers for active power filters (APF). In practice, a variation in grid frequency leads to the appearance of a fractional-order delay filter. As a result, the resonant frequency of the repetitive controller will deviate from the fundamental frequency and the controller cannot compensate for harmonics accurately. To solve this problem, an improved frequency-adaptive repetitive controller based on virtual variable sampling (IMFA-VVS-RC) for APF is proposed in this paper. To enhance the system stability margin, the proposed RC introduces an infinite impulse response (IIR) low-pass filter. The proposed RC has a high stability margin at high frequencies due to the low gain of the IIR low-pass filter in the region above the cutoff frequency. In this way, the influence of model uncertainty and parameter uncertainty on system stability are reduced at high frequencies. At the same time, compared with the conventional repetitive controller (CRC), the proposed RC for APF has a better harmonic suppression ability when the frequency varies. Experiments have verified the effectiveness of the scheme adopted for APF.

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18

Kiela, Karolis, and Romualdas Navickas. "AUTOMATED INTEGRATED ANALOG FILTER DESIGN ISSUES / AUTOMATIZUOTOJO INTEGRINIŲ ANALOGINIŲ FILTRŲ PROJEKTAVIMO YPATUMAI." Mokslas – Lietuvos ateitis 7, no. 3 (2015): 323–29. http://dx.doi.org/10.3846/mla.2015.793.

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An analysis of modern automated integrated analog circuits design methods and their use in integrated filter design is done. Current modern analog circuits automated tools are based on optimization algorithms and/or new circuit generation methods. Most automated integrated filter design methods are only suited to gmC and switched current filter topologies. Here, an algorithm for an active RC integrated filter design is proposed, that can be used in automated filter designs. The algorithm is tested by designing an integrated active RC filter in a 65 nm CMOS technology. Atlikta naujausių integrinių analoginių grandynų automatizuotojo projektavimo metodų ir jų taikymo projektuojant integrinius filtrus analizė. Modernios analoginių grandynų automatizavimo priemonės yra grindžiamos esamos topologijos optimizacijos algoritmais ir/arba naujų elektroninių principinių schemų generavimo būdais. Didžioji dauguma literatūroje aprašytų automatizuotojo integrinių filtrų projektavimo metodų yra skirti tik gm-C arba perjungiamos srovės/talpos topologijos filtrams. Darbe siūlomas naujas integrinių aktyviųjų RC filtrų projektavimo algoritmas, įvertinantis integrinių technologijų elementų nuokrypius. Jis patikrintas suprojektavus integrinį aktyvųjį RC filtrą taikant 65 nm KMOP technologiją ir Cadence programinį paketą.

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19

MAHMOUD, SOLIMAN A. "LOW POWER LOW-PASS FILTER WITH PROGRAMMABLE CUTOFF FREQUENCY BASED ON A TUNABLE UNITY GAIN FREQUENCY OPERATIONAL AMPLIFIER." Journal of Circuits, Systems and Computers 19, no. 08 (2010): 1651–63. http://dx.doi.org/10.1142/s0218126610006979.

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In this paper, a sixth-order reconfigurable low pass filter (LPF) is realized using 0.25 μm TSMC CMOS technology. The filter is based on a cascading connection of bi-quadratic active-Gm-RC cells. The active-Gm-RC cells are realized using compensated op-amps with variable transconductance gain and variable compensation capacitors (variable Gm–Cc op-amp). The tuning range of the filter's cutoff frequency is from 77.4 KHz to 37.78 MHz. The filter operates from a single supply of 1.5 V. Simulations results using PSPICE for the proposed reconfigurable LPF are presented.

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20

Biey, M., and S. Coco. "Design of third-order notch RC-active filter sections." IEE Proceedings G Circuits, Devices and Systems 136, no. 1 (1989): 32. http://dx.doi.org/10.1049/ip-g-2.1989.0005.

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21

Kiela, Karolis, and Romualdas Navickas. "A Method for Continuous Tuning of MOSFET–RC Filters with Extended Control Range." Journal of Electrical Engineering 67, no. 6 (2016): 449–53. http://dx.doi.org/10.1515/jee-2016-0066.

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Abstract In this paper a tuning structure for a MOSFET?RC filters is presented. The proposed tuning structure is composed of switched resistor banks with voltage controlled transistors. The voltage controlled transistors use active feedback with extended control range for continuous filter parameter tuning, without degrading the total linearity performance of the filter. The proposed tuning structure is tested by implementing it in a second order low pass biquadratic filter cell in 65 nm CMOS technology. The designed filter has a highly reconfigurable response, ranging from Chebyshev to Bessel, a tuneable -3 dB bandwidth from 10 MHz to 100 MHz and can be used for multiple standard wireless solutions. Filter IIP3 performance is not degraded when the bandwidth is continuously tuned by 40 % with a 1 V pp input. The maximum power dissipation, including active feedback circuits, is 17.2 mW from a 1.2 V source when the filter is tuned to 100 MHz bandwidth.

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22

D'Amico, S., V. Giannini, and A. Baschirotto. "A 4th-Order Active-$G_m$-RC Reconfigurable (UMTS/WLAN) Filter." IEEE Journal of Solid-State Circuits 41, no. 7 (2006): 1630–37. http://dx.doi.org/10.1109/jssc.2006.873676.

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23

Xie, Zushuai, Jianhui Wu, and Chao Chen. "A Compact Low-Power Biquad for Active- $RC$ Complex Filter." IEEE Transactions on Circuits and Systems II: Express Briefs 65, no. 6 (2018): 709–13. http://dx.doi.org/10.1109/tcsii.2017.2784819.

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24

Heping, Ma, Yuan Fang, Shi Yin, and Dai F. F. "A multi-standard active-RC filter with accurate tuning system." Journal of Semiconductors 30, no. 9 (2009): 095011. http://dx.doi.org/10.1088/1674-4926/30/9/095011.

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25

Ge, Le, Xiaodong Yuan, and Zhong Yang. "Control System Design of Shunt Active Power Filter Based on Active Disturbance Rejection and Repetitive Control Techniques." Mathematical Problems in Engineering 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/864989.

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To rely on joint active disturbance rejection control (ADRC) and repetitive control (RC), in this paper, a compound control law for active power filter (APF) current control system is proposed. According to the theory of ADRC, the uncertainties in the model and from the circumstance outside are considered as the unknown disturbance to the system. The extended state observer can evaluate the unknown disturbance. Next, RC is introduced into current loop to improve the steady characteristics. The ADRC is used to get a good dynamic performance, and RC is used to get a good static performance. A good simulation result is got through choosing and changing the parameters, and the feasibility, adaptability, and robustness of the control are testified by this result.

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26

Huang, Yuan Xin, Kun Li, Xiu Wei Xuan, and Jian Fu Teng. "High-Order Active Filter Design Based on Component-Level Signal Flow Graph Method." Applied Mechanics and Materials 385-386 (August 2013): 1340–43. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.1340.

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In this paper, a seventh-order elliptic low-pass active-RC filter with three finite transmission zeros is designed for the baseband filter of a 433MHz wireless communication terminal. While designing, the canonical signal flow graph (SFG) method is applied based on component-level simulation of LC ladder prototype circuit. The simulation and measurement results show that the filter satisfied the design specifications.

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27

Zhang, Changchun, Long Shang, Yongkai Wang, and Lu Tang. "A CMOS Programmable Fourth-Order Butterworth Active-RC Low-Pass Filter." Electronics 9, no. 2 (2020): 204. http://dx.doi.org/10.3390/electronics9020204.

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This paper presents a low-pass filter (LPF) for an ultra-high frequency (UHF) radio frequency identification (RFID) reader transmitter in standard SMIC 0.18 μm CMOS technology. The active-RC topology and Butterworth approximation function are employed mainly for high linearity and high flatness respectively. Two cascaded fully-differential Tow-Thomas biquads are chosen for low sensitivity to process errors and strong resistance to the imperfection of the involved two-stage fully-differential operational amplifiers. Besides, the LPF is programmable in order to adapt to the multiple data rate standards. Measurement results show that the LPF has the programmable bandwidths of 605/870/1020/1330/1530/2150 kHz, the optimum input 1dB compression point of −7.81 dBm, and the attenuation of 50 dB at 10 times cutoff frequency, with the overall power consumption of 12.6 mW from a single supply voltage of 1.8 V. The silicon area of the LPF core is 0.17 mm2.

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Jeong, Dong-Gil, Sang-Min Park, Yu-Jeong Hwang, and Young-Chan Jang. "Active-RC Channel Selection Filter with 40MHz Bandwidth and Improved Linearity." Journal of the Korea Institute of Information and Communication Engineering 19, no. 1 (2015): 149–55. http://dx.doi.org/10.6109/jkiice.2015.19.1.149.

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Ananda Mohan, P. V. "Comments on A 4th-Order Active-RC Reconfigurable (UMTS/WLAN) Filter." IEEE Journal of Solid-State Circuits 42, no. 2 (2007): 457–58. http://dx.doi.org/10.1109/jssc.2006.890112.

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30

Ishibashi, Y., and K. Tsuduki. "Synthesis and RC-active simulation of an LR terminated LC filter." IEE Proceedings - Circuits, Devices and Systems 142, no. 1 (1995): 49. http://dx.doi.org/10.1049/ip-cds:19951624.

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31

Lee, Mi-young. "Wideband Active-RC Channel Selection Filter for 5-GHz Wireless LAN." International Journal of Control and Automation 8, no. 7 (2015): 227–36. http://dx.doi.org/10.14257/ijca.2015.8.7.24.

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32

Thajchayapong, P., C. Kimpan, and Y. Rungsunseri. "Multiple critical pole maximally flat RC active filter with sharp cutoff." IEE Proceedings G (Electronic Circuits and Systems) 133, no. 6 (1986): 285. http://dx.doi.org/10.1049/ip-g-1.1986.0049.

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Mahattanakul, J., P. Khumsat, and W. Surakampontorn. "Ladder-simulation elliptic bandpass active-RC filter structure employing identical resistors." IET Circuits, Devices & Systems 3, no. 4 (2009): 187–96. http://dx.doi.org/10.1049/iet-cds.2009.0026.

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Galán, J., T. Sánchez-Rodríguez, C. Luján-Martínez, M. Pedro, R. G. Carvajal, and A. López-Martín. "Micropower active-RC channel filter for a zero-IF Bluetooth receiver." Analog Integrated Circuits and Signal Processing 63, no. 1 (2009): 1–8. http://dx.doi.org/10.1007/s10470-009-9372-0.

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Huang, C., C. Chen, M. J. Zhou, and J. H. Wu. "An active-RC reconfigurable lowpass-polyphase biquad filter for wireless receiver." Analog Integrated Circuits and Signal Processing 84, no. 1 (2015): 97–105. http://dx.doi.org/10.1007/s10470-015-0540-0.

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Pavlovic, Vlastimir, Miroslav Lutovac, and Maja Lutovac. "Automated knowledge based filter synthesis using modified Chebyshev polynomials of the first kind." Facta universitatis - series: Electronics and Energetics 25, no. 1 (2012): 59–68. http://dx.doi.org/10.2298/fuee1201059p.

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The paper presents the automated design of active RC and programmable filters. The approximating function is derived using Chebyshev orthogonal polynomials of the first kind. Optimization is performed using symbolic manipulation of expressions inputted into computer algebra system. The code is in the form of template notebook, and the user should specify the minimal number of numeric values, such as the number of second-order filter sections, the pass-band edge frequency, the reflection coefficient, and the preferred values of component values.

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De Backer, E., J. Bauwelinck, C. Mélange, et al. "2.5 V 35 dBm IIP3 75 MHz sixth-order active RC filter." Electronics Letters 44, no. 7 (2008): 466. http://dx.doi.org/10.1049/el:20080254.

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38

KHANNA, P. K., S. K. BHATNAGAR, and M. L. SISODIA. "Development of a thick-film tunable RC-active filter using segmented resistors." International Journal of Electronics 63, no. 1 (1987): 1–8. http://dx.doi.org/10.1080/00207218708939104.

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39

Koziel, S., and R. Schaumann. "Continuous-time active-RC filter model for computer-aided design and optimization." IEEE Transactions on Circuits and Systems I: Regular Papers 52, no. 7 (2005): 1292–301. http://dx.doi.org/10.1109/tcsi.2005.851392.

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Wei, Feng, and Dai Yujie. "An Active-RC Complex Filter with Tuning Circuits for Wireless Sensor Networks." International Journal of Control and Automation 9, no. 1 (2016): 359–70. http://dx.doi.org/10.14257/ijca.2016.9.1.31.

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Gao, Yunguang, Xiaofan Li, Wenjie Zhang, Dianchao Hou, and Lijun Zheng. "A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter." Energies 13, no. 7 (2020): 1740. http://dx.doi.org/10.3390/en13071740.

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This paper proposes a novel sliding mode control (SMC) scheme with a repetitive sliding surface for shunt active power filters (SAPF) to enhance the system robustness and eliminate harmonic current tracking errors. Traditional control schemes, such as PI control, repetitive control (RC), proportional resonance control (PR), improve the stability of the SAPF in the stable grid to a certain extent. However, the robustness of the SAPF control system has not been improved. In this paper, the SMC is applied to SAPF, and a sliding mode controller is constructed by using a linear sliding mode surface composed of the system state variables and a fast exponential power-reaching law, which can effectively enhance the system robustness. When the grid parameters change or external disturbances exist, sliding surface drift and sliding mode chattering will occur. Although fast-tracking of the harmonic current can still be achieved, it is difficult to accurately compensate AC harmonic current. Moreover, this may cause the harmonic current compensation error to be amplified. RC can achieve infinite gain at multiples of the fundamental frequency and can track inputs without static errors. In order to fully eliminate the harmonic current tracking error and effectively suppress the total harmonic distortion (THD) of the grid, the sliding mode surface was modified. An RC term of harmonic current error is introduced to the sliding mode surface, and a novel plugin-repetitive sliding mode control strategy (RCSMC) for SAPF is proposed. Finally, simulation and experiment results on the LCLCL-filter based SAPF show the effectiveness of the proposed control strategy.

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42

Ishibashi, Yukio. "Synthesis of an LC filter suitable for LC simulation-type RC active filters and its application." Electronics and Communications in Japan (Part III: Fundamental Electronic Science) 74, no. 8 (1991): 80–88. http://dx.doi.org/10.1002/ecjc.4430740809.

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MAHMOUD, SOLIMAN A. "A GAIN/FILTERING INTERLEAVED BASEBAND CHAIN ARCHITECTURES FOR MULTISTANDARD RECONFIGURABLE RECEIVERS." Journal of Circuits, Systems and Computers 21, no. 01 (2012): 1250008. http://dx.doi.org/10.1142/s0218126612500089.

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In this paper, four baseband chain architectures used in multistandard (UMTS–WLAN) reconfigurable receivers will be introduced, simulated and, compared. The architectures are realized using 0.25 μm CMOS technology operating with 1.2 V supply voltage. The baseband chain consists of three stages: the first and the last stage are programmable gain amplifiers and the intermediate stage is an active Gm-RC LPF filter. The proposed architectures are compared in terms of DC-gain, noise, linearity, SFDR, and power consumption. The best receiver architecture is then derived based on system level analysis and based on a defined figure-of-merit. The best baseband chain bandwidth is controlled by the active Gm-RC filter with a value 2.2 MHz for UMTS and 11 MHz for WLAN. The baseband gain can be programmed in the range of -6÷68 dB, while the input-referred noise density is less 20 nV/√Hz for UMTS and 25 μV/√Hz for WLAN.

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Yu Denisenko, D., N. N. Prokopenko, Yu I. Ivanov, and N. V. Butyrlagin. "Active Sallen-Key RC-High-Frequency filter based on non-inverting voltage followers." Journal of Physics: Conference Series 2373, no. 7 (2022): 072033. http://dx.doi.org/10.1088/1742-6596/2373/7/072033.

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Abstract A new high-pass filter (HPF) circuit of the second-order Sallen-Key family has been developed and studied, in which independent adjustment of the main parameters is realized -the pole frequency, the quality factor of the pole and the transmission coefficient. The basic equations for the transfer functions and HPF parameters are presented. The results of computer simulation a proposed circuits HPF in CAD Micro-Cap 12 are shown.

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Okine, Mitsuo, and Noriaki Katsuhara. "A Chain Active RC Filter with Compensation for Absolute Accuracy of Passive Elements." IEEJ Transactions on Electronics, Information and Systems 117, no. 8 (1997): 994–99. http://dx.doi.org/10.1541/ieejeiss1987.117.8_994.

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Qian, Lei, and Xiang Ning Fan. "Design of an Active-Gm-RC Reconfigurable Filter for the Multi-Mode Receiver." Applied Mechanics and Materials 364 (August 2013): 458–62. http://dx.doi.org/10.4028/www.scientific.net/amm.364.458.

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Based on TSMC 0.18m RF CMOS process a reconfigurable low-pass filter (LPF) is presented in this paper. The LPF adopts active-Gm-RC structure. By manually adjusting the capacitor arrays, the LPF can switch working mode and correct frequency offset caused by process deviation. The pre-layout simulation shows that with 1.8V power supply, the bandwidth ranges from 1.4MHz to 9.8MHz with a step of 1.4MHz. The out of band attenuation is about-80dB/10 octave and the power consumption is 0.43mW .

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Vasilopoulos, A., G. Vitzilaios, G. Theodoratos, and Y. Papananos. "A Low-Power Wideband Reconfigurable Integrated Active-RC Filter With 73 dB SFDR." IEEE Journal of Solid-State Circuits 41, no. 9 (2006): 1997–2008. http://dx.doi.org/10.1109/jssc.2006.880616.

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Rekha, S., and T. Laxminidhi. "0.5 V, 5 MHz active-RC biquad filter in 90 nm CMOS technology." International Journal of Circuits and Architecture Design 2, no. 2 (2016): 142. http://dx.doi.org/10.1504/ijcad.2016.082134.

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Laxminidhi, T., and S. Rekha. "0.5 V, 5 MHz active-RC biquad filter in 90 nm CMOS technology." International Journal of Circuits and Architecture Design 2, no. 2 (2016): 142. http://dx.doi.org/10.1504/ijcad.2016.10003036.

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Singh, Balraj, S. Parthipan, T. S. Rathore, and B. B. Bhattacharyya. "A Note on Single-Grounded-Resistor-Controlled Variable Frequency Active RC Notch Filter." IETE Journal of Research 35, no. 1 (1989): 25–27. http://dx.doi.org/10.1080/03772063.1989.11436785.

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