Academic literature on the topic 'Feed-forward amplifier'
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Journal articles on the topic "Feed-forward amplifier"
Oki, Daiki, Satoru Kawauchi, Cong Bing Li, Masataka Kamiyama, Seiichi Banba, Toru Dan, Nobuo Takahashi, and Haruo Kobayashi. "A Power-Efficient Noise Canceling Technique Using Signal-Suppression Feed-Forward for Wideband LNAs." Key Engineering Materials 643 (May 2015): 109–16. http://dx.doi.org/10.4028/www.scientific.net/kem.643.109.
Full textMa, Hongbo, and Quanyuan Feng. "An Improved Design of Feed-forward Power Amplifier." PIERS Online 3, no. 4 (2007): 363–67. http://dx.doi.org/10.2529/piers060817033556.
Full textKim, Seung‐Hoon, Sang‐Bock Cho, and Sung Min Park. "Dual‐mode CMOS feed‐forward transimpedance amplifier for LADARs." Electronics Letters 50, no. 23 (November 2014): 1678–80. http://dx.doi.org/10.1049/el.2014.2678.
Full textFuangkhon, Piyabute. "Normalized data barrier amplifier for feed-forward neural network." Neural Network World 31, no. 2 (2021): 125–57. http://dx.doi.org/10.14311/nnw.2021.31.007.
Full textD'agostino, S., G. D'inzeo, G. Lambertucci, P. Marietti, and G. Panariello. "A novel application in matrix distributed amplifier: The forward-feed." Microwave and Optical Technology Letters 3, no. 10 (October 1990): 354–56. http://dx.doi.org/10.1002/mop.4650031008.
Full textBouzerara, Lyes, Tahar Belaroussi, and Boualem Amirouche. "Low-voltage, low-power and high gain cmosota using active positive feedback with feed forward and FDCM techniques." Facta universitatis - series: Electronics and Energetics 15, no. 1 (2002): 93–101. http://dx.doi.org/10.2298/fuee0201093b.
Full textSUZUKI, Yasunori, Hiroshi OKAZAKI, and Shoichi NARAHASHI. "IMD Components Compensation Conditions for Dual-Band Feed-Forward Power Amplifier." IEICE Transactions on Electronics E103.C, no. 10 (October 1, 2020): 434–44. http://dx.doi.org/10.1587/transele.2020mmp0005.
Full textGadel-Karim, Ahmed Gharib, Ahmed N. Mohieldin, Faisal Hussien, and Mohamed Aboudina. "Linearity-Enhanced Ring Amplifier Using Adaptive Slew-Rate Feed-Forward Path." IEEE Transactions on Circuits and Systems II: Express Briefs 67, no. 12 (December 2020): 2908–12. http://dx.doi.org/10.1109/tcsii.2020.2984322.
Full textDeshmukh, Pratik, Madan Mali, and Vrushali G. Raut. "Low power 0.4 V operational common mode feed forward transconductance amplifier." International Journal of Circuits and Architecture Design 1, no. 3 (2014): 258. http://dx.doi.org/10.1504/ijcad.2014.068299.
Full textShcherbelis, Y., D. S. G. Chambers, and D. C. McLernon. "Microwave feed-forward low noise amplifier design for cellular base station." Electronics Letters 37, no. 6 (2001): 359. http://dx.doi.org/10.1049/el:20010242.
Full textDissertations / Theses on the topic "Feed-forward amplifier"
Ross, Michael Carleton University Dissertation Engineering Electrical. "Investigation of taper and forward-feed in GaAs MMIC distributed amplifiers." Ottawa, 1987.
Find full textChen, Ming-Chich, and 陳明傑. "Adaptive Wideband Power Amplifier Feed-Forward Linearizer Using DSP." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/10653836370278020855.
Full text國立臺灣科技大學
電子工程系
88
All wireless communication systems contain nonlinear RF amplifiers. Nonlinear elements introduce intermodulation distortion (IMD) which cause the amplified signal to be corrupted. Three methods to reduce the intermodulation distortion are predistortion, feedback and feed-forward. In this thesis, we use the feed-forward linearizer method. If we consider the amplifier with memory, the linear distortion will generate. It will also corrupt the amplified signal. To improve the linear distortion, we add equalizer to the feed-forward linearizer circuit. In this thesis, we feed the BPSK, QPSK and pi/4-DQPSK to the amplifier and show the eye-diagram and constellation of these modulated signals. We also show the eye-diagram and constellation of the output of the feed-forward linearizer circuit. We finally compare the performance of the proposed algorithm to the conventional algorithms.
TSAI, IOU-LUNG, and 蔡侑龍. "A Fully Differential Class D Audio Amplifier with Feed-Forward Common-Mode Control." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/mhgh24.
Full text國立臺北大學
電機工程學系
105
This paper presents a Fully Differential Class-D audio amplifier with Feed-Forward Common-Mode Control to suppress even distortions and supply noise at output due to the differential feedback gain mismatch. A filter order enhance (FOE) technique is utilized to increase an extra 1 st -order attenuation of the loop filter and thus filter out-of-band signals without consumes active power for low-power consideration. The proposed Class-D amplifier achieves a THD of 0.0039% (-88dB) and a power efficiency of 96 % when drive a 8Ω load. The quiescent current is 1.34 mA, and the maximum output power of 0.65 W at 1% THD. The chip is fabricated in TSMC 0.18μm 1P6M CMOS process, supply voltage use 3.3 V, chip area is 0.63 mm2.
Chen, Yi-Hsin, and 陳繹心. "Research on 24 GHz CMOS Linearized Power Amplifier Using Low Frequency IM2 Feed-forward Method." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/70605924152939467049.
Full text國立臺灣大學
電信工程學研究所
100
In this thesis, a new low-frequency IM2 feed-forward method is proposed to enhance the linearity of the 24 GHz CMOS power amplifier. The power amplifier consists of main and auxiliary paths. The main path consists of cascode topology to provide enough gain and amplify the output power. The auxiliary path consists of two transistors to provide the same IM3 current compared to the main path. The cascode current mirror and DC-level shifter are designed to feed the IM2 current in the auxiliary path. The operation detail of the linearized circuit is investigated, and the comparison of this new method versus other previous reported linearization methods is provided. A 24 GHz power amplifier with the proposed linearization method is fabricated in 0.18-um CMOS technology. According to the measurement, the proposed PA provides 8.5-dB small signal gain, 14.4-dBm OP1dB and 17-dBm Psat. The peak power-added-efficiency (PAE) and PAE at OP1dB is 15% and 12.3%, respectively. To verify the linearization effect, the measured IM3 signal is reduced more than 20 dBc at sweet-spot. Under the 64-QAM modulation, the ACPR and EVM are improved by 8 dB and 2%, respectively. It can be verified that the linearization effect of this power amplifier.
Fu, Ming-Kai, and 傅明楷. "A Novel Low Voltage Operational Transconductance Amplifier Design Based on the Common-Mode Feed-Forward Technology." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/32598379538616172488.
Full text逢甲大學
電子工程所
97
A CMOS pseudo differential operational transconductance amplifier (OTA) has been proposed in this study. It can operate at very low supply voltage with high linearity and high output impedance. Besides, it enhances the common mode rejection ratio (CMRR) by using a special common mode feed forward (CMFF) structure. The simulation results show that the CMRR is 79.6dB and this circuit has an open loop gain of 57.7dB under the supply voltage at 1.1V only. The unity gain frequency is 2.86MHz and it consumes only 63μW for the power dissipation. The chip has been manufactured in a 0.35μm-CMOS technology. The chip area is 0.15x0.1 mm2.
Chang, Yen-Shuo, and 張晏碩. "On the Design of a Low Voltage Pseudo Differential Operational Transconductance Amplifier with Common Mode and HD3 Feed Forward Cancellation Technologies." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/40563080582167111030.
Full text逢甲大學
電子工程所
100
A pseudo differential Operational Transconductance Amplifier (OTA) has been proposed in this research. This OTA can operate at low supply voltage with high linearity. Here, we use two technologies, one of them is common mode feed forward and the other is HD3 feed forward. Simulation results show that the common mode rejection ratio (CMRR) is 68.6dB and third harmonic distortion (HD3) is -66.6dB. This OTA consumes 75.8μW for the power dissipation. The chip has been manufactured in a 0.18μm-CMOS technology. The chip area is 0.69x0.38 mm2.
Chen, Jhih-Hong, and 陳致宏. "The Design and Implementation of WiMAX Feed-forward Power Amplifiers, High Efficiency Class F Power Amplifiers and Voltage Controlled Oscillators." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/44234459525185985777.
Full text國立中央大學
電機工程研究所
96
This thesis describes several radio frequency circuit designs for WiMAX applications. They are implemented in TSMC 0.35 ?m SiGe BiCMOS and 0.18 ?m CMOS technologies, respectively. The implemented circuits include two Feed-forward power amplifiers, two Class F power amplifiers, a quadrature voltage controlled oscillator (QVCO), and a Colpitts VCO. Two 2.6 GHz Feed-forward and two Class F power amplifiers are realized in the two-step transmitter architecture for mobile WiMAX system requirements.The QVCO and Colpitts VCO are realized in super-heterodyne architecture with image rejection mixer, their operating frequencies are 3220 ~ 3300 MHz and 6440 ~ 6600 MHz, respectively. The following sections will summarize the practical measured results which will be thoroughly presented in following chapters. Chapter 2 introduces the designs of sub-circuits of radio frequency transmitter, including two feed-forward power amplifiers and two Class F power amplifiers. These power amplifiers are implemented in TSMC 0.35 ?m SiGe BiCMOS and 0.18 ?m CMOS technologies, respectively. The feed-forward power amplifier implemented in 0.35 ?m SiGe BiCMOS technology provides a power gain of 12.4 dB with input return loss better than 10 dB, output return loss of 9.3 dB and, an output P1dB of 20.3 dBm, an output IP3 of 33 dBm, a PAE@ P1dB of 19.2 %. The CMOS feed-forward power amplifier provides a power gain of 12.2 dB with input return loss about 4.7 dB, an output return loss of 10.3 dB, an output P1dB of 22.1 dBm, an output IP3 of 33.2 dBm, a PAE@ P1dB of 26.6 %. The CMOS Class F power amplifier implemented provides a power gain of 13.1 dB with input return loss about 9 dB, an output return loss of 15.3dB, an output P1dB of 20.2 dBm, an output IP3 of 25.4 dBm, a PAE@ P1dB of 24.4 %. The SiGe Class F power amplifier provides a power gain 18.3 dB with input return loss better than 15 dB, an output return loss of about 6.6 dB, an output P1dB of 20.6 dBm, an output IP3 of 30.8 dBm, a PAE@ P1dB of 25.8 %. Chapter 3 introduces the designs of VCOs, including QVCO for 3220 ~ 3300 MHz band, and Colpitts VCO for 6440 ~ 6600 MHz band. The QVCO achieves a tuning range of 214 MHz, an output power of -9 ~ -5 dBm, The phase noise at 1 MHz offset carrier frequency is -110.875 dBc/Hz under a power consumption of the VCO core of 9.94 mW. The Colpitts VCO achieves a tuning range of 354 MHz, an output power of -11.7 ~ -11 dBm, The phase noise at 1MHz offset carrier frequency is -122 dBc/Hz under a power consumption of the VCO core of 19.1mW.
Kandic, Miodrag. "Asymptotic limits of negative group delay phenomenon in linear causal media." 2011. http://hdl.handle.net/1993/4958.
Full textBook chapters on the topic "Feed-forward amplifier"
Golubitsky, Martin, LieJune Shiau, Claire Postlethwaite, and Yanyan Zhang. "The Feed-Forward Chain as a Filter-Amplifier Motif." In Coherent Behavior in Neuronal Networks, 95–120. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0389-1_6.
Full textConference papers on the topic "Feed-forward amplifier"
Chang, Yen-Shuo, Hong-Chong Wu, Miin-Shyue Shiau, Don-Gey Liu, and Heng-shou Hsu. "Pseudo differential operational transconductance amplifier using common mode feed forward and HD3 feed forward." In 2011 International Symposium on Integrated Circuits (ISIC). IEEE, 2011. http://dx.doi.org/10.1109/isicir.2011.6131943.
Full textSuzuki, Yasunori, Shoichi Narahashi, and Toshio Nojima. "Highly efficient feed-forward amplifier employing a harmonic reaction amplifier." In 2009 IEEE Radio and Wireless Symposium (RWS). IEEE, 2009. http://dx.doi.org/10.1109/rws.2009.4957410.
Full textNoto, Hifumi, Kazuhisa Yamauchi, Masatoshi Nakayama, and Yoji Isota. "Negative Group Delay Circuit for Feed-Forward Amplifier." In 2007 IEEE/MTT-S International Microwave Symposium. IEEE, 2007. http://dx.doi.org/10.1109/mwsym.2007.380286.
Full textLi, Wei, Jin Meng, Chuan-jie Gou, Jian Tang, and Fang-ming He. "A new analog adaptive feed-forward power amplifier." In 2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC). IEEE, 2016. http://dx.doi.org/10.1109/apemc.2016.7522770.
Full textSaad, Mohamed, Mohamed El-Nozahi, and Hani Ragai. "Low noise chopper instrumentation amplifier with feed-forward ripple suppression technique." In 2016 28th International Conference on Microelectronics (ICM). IEEE, 2016. http://dx.doi.org/10.1109/icm.2016.7847876.
Full textJun Hayashi and Yoshio Nikawa. "Equalizing of group delay for feed forward amplifier using dielectric filters." In 2006 Asia-Pacific Microwave Conference. IEEE, 2006. http://dx.doi.org/10.1109/apmc.2006.4429624.
Full textTabatabai, F., and H. S. Al-Raweshidy. "Feed-Forward Linearization for Fibre Optic Application using Semiconductor Optical Amplifier." In 2007 Asia-Pacific Microwave Conference - (APMC 2007). IEEE, 2007. http://dx.doi.org/10.1109/apmc.2007.4554627.
Full textQing, Zheng, and Yan bo. "A Highly Efficient Feed-Forward Doherty Amplifier with Improved Group-delay performance." In 2008 China-Japan Joint Microwave Conference (CJMW 2008). IEEE, 2008. http://dx.doi.org/10.1109/cjmw.2008.4772490.
Full textYamauchi, Kazuhisa, Hifumi Noto, Akira Inoue, and Moriyasu Miyazaki. "Efficiency Enhancement Technique for Feed-Forward Amplifier Using Negative Group Delay Circuit." In 2008 IEEE International Workshop on Antenna Technology. IEEE, 2008. http://dx.doi.org/10.1109/iwat.2008.4511308.
Full textTu, Chih-Chan, and Tsung-Hsien Lin. "Analog front-end amplifier for ECG applications with feed-forward EOS cancellation." In 2014 International Symposium on VLSI Design, Automation and Test (VLSI-DAT). IEEE, 2014. http://dx.doi.org/10.1109/vlsi-dat.2014.6834895.
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