A compact differential 4-way power combiner with 2.3 dB loss and high common-mode rejection characteristic for use in mm-wave PAs is presented. A complete circuit comprised of a power splitter, two-stage cascode PA array, and a power combiner was implemented in SiGe technology. Measured small-signal gain of at least 17 dB was obtained from 74.5 GHz to 80.5 GHz with a peak 21 dB at 79 GHz. The prototype delivered 13.2 dBm P1dB and 14.3 dBm Psat when operated from a single 3.3 V supply at 75 GHz.
|Number of pages||3|
|Publication status||Published - Jun 2013|
|Event||IEEE MTT-S International Microwave Symposium - Seattle, WA, United States|
Duration: 02 Jun 2013 → 07 Jun 2013
|Conference||IEEE MTT-S International Microwave Symposium|
|Period||02/06/2013 → 07/06/2013|