@inproceedings{fced630473ca4d4e90d9bf32da7384ab,
title = "17-GHz pHEMT gilbert single-quadrature downconverter with polyphase filters for image rejection",
abstract = "A 17-GHz Gilbert single-quadrature down-converter (SQDC) with polyphase filters is successfully demonstrated using 0.15-m pseudomorphic high electron mobility transistor (pHEMT) technology for the first time to the best of our knowledge. Thanks to the semi-insulating GaAs substrate and an advanced technology, the image rejection Gilbert mixer works well at high frequencies. A polyphase filter at the LO stage is employed to generate precisely differential quadrature signals and a four-stage polyphase filter at the IF stage can filter out the unwanted image signal to achieve image rejection. From 10-MHz to 90-MHz IF frequencies, a 30-dB image rejection ratio is achieved when RF and LO frequencies are designed around 17 GHz. The Gilbert SQDC has a 5.5-dB conversion gain, 0-dBm IP1dB, and 16-dBm IIP3.",
author = "Wei, {Hung Ju} and Chin-Chun Meng and Su, {Jen Yi} and Yu, {Sheng Wen} and Huang, {Guo Wei}",
year = "2010",
month = dec,
day = "1",
language = "English",
isbn = "9784902339222",
series = "Asia-Pacific Microwave Conference Proceedings, APMC",
pages = "690--693",
booktitle = "2010 Asia-Pacific Microwave Conference Proceedings, APMC 2010",
note = "2010 Asia-Pacific Microwave Conference, APMC 2010 ; Conference date: 07-12-2010 Through 10-12-2010",
}