Title :
U-band wideband receiver front-end
Author :
Dong, Yuliang ; Bai, Rui ; Wu, Jianhua ; He, Guoyu
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
A 40-60 GHz wideband receiver front-end, consisting of a two-stage low noise amplifier (LNA) and a downconverter, is presented. The downconverter comprises a subharmonic mixer with a pair of anti-parallel diodes in asymmetric bilateral finline, and a local oscillator (LO) doubler-amplifier chain to provide the necessary LO power to the subharmonic mixer. Thus the U-band front-end operates with a LO frequency range of 10-15 GHz. The circuits are fabricated on 254 mum thick Rogers Duroid 5880 substrate in hybrid integrated circuit technology. Measurement results show the gain of LNA is around 24 dB, the conversion loss of the downconverter is in the range of 8-15 dB, and the front-end has a conversion gain greater than 6 dB over the range of 40-60 GHz.
Keywords :
broadband networks; diodes; fin lines; low noise amplifiers; millimetre wave receivers; mixers (circuits); oscillators; U-band wideband receiver front-end; anti-parallel diodes; asymmetric bilateral finline; downconverter; frequency 10 GHz to 15 GHz; frequency 40 GHz to 60 GHz; gain 24 dB; local oscillator doubler-amplifier chain; loss 8 dB to 15 dB; size 254 mum; subharmonic mixer; two-stage low noise amplifier; Broadband amplifiers; Diodes; Finline; Frequency; Hybrid integrated circuits; Integrated circuit technology; Local oscillators; Low-noise amplifiers; Mixers; Wideband; U-band; finline; front-end; low noise amplifier (LNA); millimeter wave; subharmonic mixer; wideband receiver;
Conference_Titel :
Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2192-3
Electronic_ISBN :
978-1-4244-2193-0
DOI :
10.1109/ISAPE.2008.4735468
