A Novel Technique for Millimeter-Wave Receivers Using Multiple-Element High-Order Subharmonic Self-Oscillating Mixers

Description

A novel technique for multiple-element phased high-order subharmonic self-oscillating mixers (SOMs) is presented. SOMs are excellent choices for a low-cost receiver design as both the oscillating source and the mixer are combined in one single device. The presented structure is of high interest for high-end millimeter-wave systems as subharmonic operation reduces local oscillator (LO) frequency requirements. In this paper, an outline of the basic theory and a general design procedure for arbitrary mixing orders are presented, and a 6th-order SOM is fabricated for the first time to the authors’ knowledge in order to verify the proposed technique. The prototype exhibits a conversion gain of +2.8 dB at an RF input frequency of 7.4 GHz. In this paper, the design of the complete circuit structure is presented in theory and verified with measured results.

Period	23 Apr 2008
Event title	2009 Global Symposium on Millimeter-Waves
Event type	Conference
Location	ChinaShow on map