Research of Microwave and Millimeter-wave Power Amplifiers and Frequency Multipliers
碩士 === 臺灣大學 === 電信工程學研究所 === 98 === This thesis consists of two parts. The first part is CMOS power amplifiers. Chapter 2 introduces the power amplifier theories. In chapter 3, a K-band CMOS power amplifier is designed using 3-stages cascode topology. The power stage is combined with two power cells...
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ndltd-TW-098NTU054350282015-10-13T18:49:39Z http://ndltd.ncl.edu.tw/handle/27098351036557904457 Research of Microwave and Millimeter-wave Power Amplifiers and Frequency Multipliers 微波及毫米波功率放大器與倍頻器之研究 Chi-Cheng Hung 洪其正 碩士 臺灣大學 電信工程學研究所 98 This thesis consists of two parts. The first part is CMOS power amplifiers. Chapter 2 introduces the power amplifier theories. In chapter 3, a K-band CMOS power amplifier is designed using 3-stages cascode topology. The power stage is combined with two power cells. With appropriate device selection and matching, the power amplifier is measured with 22.5-dB of gain and 20.1-dBm of output power, provides good performance in K-band. Some inconsistent between simulation and measurement are observed, and could be corrected by proper simulation setup. The second part is the frequency multipliers. Chapter 4 introduces the design concepts of the frequency multipliers. In chapter 5, two sixtuplers consist of doublers, buffer amplifiers, and triplers, are introduced; moreover, both of the two circuits are critical parts for assembling the ALMA’s LO driver modules. The first sixtupler was fabricated in mHEMT process, which was in co-operation with other members in our lab. Due to lack of the large-signal parameters of the device, the circuit performs over -22.9 dB of conversion gain under 14.5 dBm of input power, as well as harmonic rejection better than 40 dB from 72-114 GHz. The second sixtupler is implemented in pHEMT process. The improvements of building blocks, as well as accurate large-signal model contribute to a significant improvement to the performance. The second circuit measured with > -13.5 dB of conversion gain when driving 10 dBm of input power from 72-117 GHz. The harmonic rejection is better than 24 dB. Huei Wang 王暉 2010 學位論文 ; thesis 107 en_US |
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碩士 === 臺灣大學 === 電信工程學研究所 === 98 === This thesis consists of two parts. The first part is CMOS power amplifiers. Chapter 2 introduces the power amplifier theories. In chapter 3, a K-band CMOS power amplifier is designed using 3-stages cascode topology. The power stage is combined with two power cells. With appropriate device selection and matching, the power amplifier is measured with 22.5-dB of gain and 20.1-dBm of output power, provides good performance in K-band. Some inconsistent between simulation and measurement are observed, and could be corrected by proper simulation setup.
The second part is the frequency multipliers. Chapter 4 introduces the design concepts of the frequency multipliers. In chapter 5, two sixtuplers consist of doublers, buffer amplifiers, and triplers, are introduced; moreover, both of the two circuits are critical parts for assembling the ALMA’s LO driver modules. The first sixtupler was fabricated in mHEMT process, which was in co-operation with other members in our lab. Due to lack of the large-signal parameters of the device, the circuit performs over -22.9 dB of conversion gain under 14.5 dBm of input power, as well as harmonic rejection better than 40 dB from 72-114 GHz.
The second sixtupler is implemented in pHEMT process. The improvements of building blocks, as well as accurate large-signal model contribute to a significant improvement to the performance. The second circuit measured with > -13.5 dB of conversion gain when driving 10 dBm of input power from 72-117 GHz. The harmonic rejection is better than 24 dB.
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Huei Wang |
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Huei Wang Chi-Cheng Hung 洪其正 |
author |
Chi-Cheng Hung 洪其正 |
spellingShingle |
Chi-Cheng Hung 洪其正 Research of Microwave and Millimeter-wave Power Amplifiers and Frequency Multipliers |
author_sort |
Chi-Cheng Hung |
title |
Research of Microwave and Millimeter-wave Power Amplifiers and Frequency Multipliers |
title_short |
Research of Microwave and Millimeter-wave Power Amplifiers and Frequency Multipliers |
title_full |
Research of Microwave and Millimeter-wave Power Amplifiers and Frequency Multipliers |
title_fullStr |
Research of Microwave and Millimeter-wave Power Amplifiers and Frequency Multipliers |
title_full_unstemmed |
Research of Microwave and Millimeter-wave Power Amplifiers and Frequency Multipliers |
title_sort |
research of microwave and millimeter-wave power amplifiers and frequency multipliers |
publishDate |
2010 |
url |
http://ndltd.ncl.edu.tw/handle/27098351036557904457 |
work_keys_str_mv |
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