https://scholars.lib.ntu.edu.tw/handle/123456789/580882
標題: | A 78-93 GHz Power Amplifier with 19.6-dBm Psat and 12.8 % PAEpeak in 0.1-μm GaAs pHEMT for Radio Astronomical Receiver System | 作者: | Lu B.-Z Wu Y.-C Chiong C.-C Wang H. HUEI WANG |
關鍵字: | Bandwidth; Bandwidth compression; Gallium arsenide; High electron mobility transistors; III-V semiconductors; Monolithic microwave integrated circuits; Radio astronomy; Radio waves; Receivers (containers); Semiconducting gallium; 1dB compression point; Common source; Lange couplers; Matching networks; Maximum power; Radio-astronomical receivers; Saturated output power (Psat); Small signal gain; Power amplifiers | 公開日期: | 2019 | 來源出版物: | 2019 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2019 - Proceedings | 摘要: | A W-band power amplifier (PA) for radio astronomical receiver LO chain in 0.1-μm GaAs pHEMT technology is presented in this paper. This PA is a 3-stage common source design using transmission lines to implement matching network. In order to increase the bandwidth, two sections matching networks for output are utilized to maintain the matching loci within the Q = 1 contour of Smith chart. A 90 degrees Lange coupler is employed to enhance the bandwidth and to combine the output power. The chip size with all pads is 2×1.5 mm2. From the measurement results, the proposed PA achieves 11.5-dB small signal gain with 15-GHz 3-dB bandwidth (78-93 GHz), saturated output power (Psat) of 19.6 dBm, output 1-dB compression point (OP1dB) of 18.2 dBm, and maximum power added efficiency (PAEpeak) of 12.8%. ? 2019 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078046872&doi=10.1109%2fRFIT.2019.8929200&partnerID=40&md5=2bca17a7ca4085c14b1012055798e000 https://scholars.lib.ntu.edu.tw/handle/123456789/580882 |
DOI: | 10.1109/RFIT.2019.8929200 |
顯示於: | 電機工程學系 |
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