Ku-band SiGe HBT I/Q subharmonic mixer with reactive quadrature generators

✍ Scribed by Sheng-Che Tseng; Jin-Siang Syu; Jen-Yi Su; Hung-Ju Wei; Chinchun Meng; Guo-Wei Huang

• Book ID: 102522022
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 293 KB
• Volume: 52
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.25281

✦ Synopsis

This article demonstrates a high-frequency 0.35-lm SiGe HBT subharmonic downconverter with reactive in-phase and quadrature-phase (I/Q) generators. Two reactive I/Q generators are integrated in our work to provide differential quadrature RF and LO signal. The I/Q subharmonic downconverter with single-ended LO, RF, and IF (I/Q) ports has a conversion gain of 1 dB, IP 1dB of À10 dBm, IIP 3 of 0 dBm, and IIP 2 of 21 dBm at 16.4 GHz. The magnitude and phase errors between the I and Q channels are 1.34% and 0.6 , respectively. The dc power consumption of this I/Q mixer without output buffers is approximately 5 mW. V