標題: | V-band Sub-Harmonic Gate-Pumped Resistive Mixer With a 180 degrees Hybrid Using an In-Phase Power Divider Merging With an Out-Of-Phase Marchand Balun |
作者: | Chang, Wei Ling Meng, Chinchun Huang, Guo-Wei 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | 180 degrees hybrid;Marchand balun;power divider;subharmonic mixer |
公開日期: | 1-一月-2019 |
摘要: | A high isolation gate-pumped resistive sub-harmonic mixer with a miniature 180 degrees hybrid is demonstrated using 90 nm CMOS process. An in-phase power divider and an out-of-phase Marchand balun form a reduced-size 180 degrees hybrid with shared coupled lines. For a sub-harmonic mixer, the input matches at LO/RF ports of the 180 degrees hybrid are achieved using high/low coupling coefficients of the shared equal-length coupled lines. Moreover, isolations between RF and LO ports are achieved at all frequencies because a Marchand balun maintains balanced signals and a power divider provides in-phase equal magnitude signals at all frequencies. The sub-harmonic mixer achieves a conversion gain around 0-3 dB from 58-67 GHz with 0 dBm LO pumping power. The LO-to-RF isolation is better than 36 dB within the operating bandwidth. |
URI: | http://hdl.handle.net/11536/153305 |
ISBN: | 978-1-7281-1309-8 |
ISSN: | 0149-645X |
期刊: | 2019 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) |
起始頁: | 236 |
結束頁: | 238 |
顯示於類別: | 會議論文 |