70/80 GHz GaAs MMIC receiver with 4th SHP mixer

• Published in: 2013 Fifth International Conference on Ubiquitous and Future Networks (ICUFN) pp. 611 - 614
• Main Authors: Bong-Su Kim, Woo-Jin Byun, Min-Soo Kang, Kwang-Seon Kim, Myung-Sun Song
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-07-2013
• Subjects: E-band; Gain; LNA; Mixers; MMIC; MMICs; Noise figure; Radio frequency; receiver; Receivers; SHP Mixer
• ISSN: 2165-8528
• DOI: 10.1109/ICUFN.2013.6614891

In this paper, the implementation of a 0.1 um GaAs pHEMT process MMIC LNA, a sub-harmonically pumped (SHP) mixer, and a single-chip receiver for 70/80 GHz point-to-point (PtP) communications are presented. In order to obtain high-gain performance and good flatness for a 15 GHz (71-86 GHz) wideband LNA, we use a 5-stage input/output ports transmission line matching method. In order to decrease package loss and cost, 2 nd /4 th SHP mixers were designed. From the measured results, the 5-stage LNA shows a gain of 23 dB and noise figure of 4.5 dB. The SHP mixer shows 2 nd /4 th conversion losses of 12/17 dB and an input P1dB of -1.5-+1.5 dBm. Finally, a single-chip receiver based on a 4 th SHP mixer shows good gain results of 6 dB, a noise figure of 6 dB, and an Input P1dB of -21 dBm.