Title :
A Low-Power Third-Harmonic Self-Oscillating Mixer Using Multi-Harmonic Load
Author :
Chiu, Leung ; Winkler, Simone A. ; Xue, Quan ; Chan, Chi Hou ; Wu, Ke
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China
fDate :
7/1/2012 12:00:00 AM
Abstract :
A novel design of a third-harmonic self-oscillating mixer (SOM) based on a nonlinear optimization technique, namely multi-harmonic load, has been designed. Power consumption is reduced by terminating harmonic properly, and conversion gain is optimized in the form of harmonic termination networks at dc, RF, and LO frequency, and its harmonics. In this way, a novel SOM circuit at an RF frequency of 5.79 GHz has been designed and fabricated yielding an excellent conversion gain of +11.5 dB. Gate and drain voltage supplies are -1.18V and +1.5 V, respectively and dc power consumption is about 9 mW.
Keywords :
circuit optimisation; low-power electronics; microwave mixers; nonlinear programming; LO frequency; RF frequency; SOM circuit design; conversion gain; dc frequency; frequency 5.79 GHz; gain 11.5 dB; harmonic termination networks; low-power third-harmonic self-oscillating mixer; multiharmonic load; nonlinear optimization technique; power consumption; voltage -1.18 V; voltage 1.5 V; Frequency measurement; Harmonic analysis; Mixers; Oscillators; Power demand; Radio frequency; Harmonic; multi-harmonic load; self-oscillating mixer (SOM);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2012.2202893
