https://scholars.lib.ntu.edu.tw/handle/123456789/639891
標題: | Ka-Band Miniaturized 90 nm Complementary Metal Oxide Semiconductor Wideband Rat-Race Coupler Using Left-Handed and Right-Handed Transmission Lines | 作者: | Chang, Je Yao Lo, Tsu Yu Chen, Pin Yen Wei, Tan Zhi Huang, Shih Ping Tsai, Wei Ting Liou, Chong Yi SHAU-GANG MAO |
關鍵字: | composite right/left-handed transmission line | metamaterial | rat-race coupler | slow wave | 公開日期: | 1-一月-2024 | 卷: | 13 | 期: | 2 | 來源出版物: | Electronics (Switzerland) | 摘要: | The traditional rat-race coupler comprises a quarter-wavelength transmission line and a three-quarter-wavelength transmission line. In this design, the slow-wave structure transmission line is employed to replace the conventional quarter-wavelength transmission line, and the three-quarter-wavelength transmission line is substituted with the left-handed transmission line. By using the TSMC CMOS 90 nm fabrication process, a circuit is created with a chip size of 300 μm × 200 μm, corresponding to the electrical size at 39 GHz of 0.039 (Formula presented.) × 0.026 (Formula presented.). The measured results demonstrate that the operating bandwidth is 35 to 43 GHz, with an amplitude imbalance of around 0 dB, a phase error within 1°, a return loss of less than 26 dB, and an isolation better than 40 dB. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/639891 | ISSN: | 2079-9292 | DOI: | 10.3390/electronics13020417 |
顯示於: | 電機工程學系 |
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