A SELF-OSCILLATING MIXER WITH DOUBLE-CONVERSION STRUCTURE FOR 77 GHz APPLICATIONS

作者：Lee Sang Jin; Uhm Wonyoung; Choi Seokgyu; Ryu Keun Kwan; Kim Sung Chan^*

来源：Microwave and Optical Technology Letters, 2016, 58(8): 1989-1993.

DOI：10.1002/mop.29962

• self-oscillating
• up-conversion mixer
• 77 GHz
• double conversion
• PHEMT

We demonstrated a novel self-oscillating up-conversion mixer with double-conversion structure in order to overcome a high conversion loss of a self-oscillating sub-harmonic up-conversion mixer. The self-oscillating double-conversion mixer consists of a self-oscillating up-conversion mixer and an up-conversion gate mixer, based on two 100 nm pseudomorphic high electron mobility transistors (PHEMTs). The mixer has an operating frequency of 77 GHz due to the double-conversion of self-generated fundamental LO frequency of 38.5 GHz. The mixer exhibits a good conversion gain of 3.87 dB and a phase noise of -92.9 dBc/Hz at 10 MHz offset.

• 出版日期2016-8