Title :
A new balanced self-oscillating mixer (SOM) with integrated antenna
Author :
Ting-Chang Huang ; Shyh-Jong Chung
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A new configuration of the balanced self-oscillating up-converter with integrated antenna is proposed and demonstrated at 5.9 GHz. The structure is composed of an IF feed network and two loop oscillators, a three-port 180/spl deg/ slot-coupled microstrip antenna, and a 3 dB power divider. The two oscillators share a common segment providing a path for mutual injection, leading to the synchronization of the oscillation frequency and phase. The IF-to-RF conversion loss is about 7 dB. Also, the antenna successfully suppresses the LO-to-RF power ratio from 24 dB to -0.6 dB.
Keywords :
antenna feeds; microstrip antennas; microwave frequency convertors; microwave mixers; microwave oscillators; power dividers; synchronisation; 5.9 GHz; IF feed network; balanced self-oscillating mixer; conversion loss; integrated antenna; loop oscillators; mutual injection; power divider; self-oscillating up-converter; slot-coupled microstrip antenna; Antenna measurements; Broadband antennas; Calibration; Circuit faults; Frequency synchronization; Low pass filters; Mixers; Oscillators; Power measurement; Radio frequency;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1217408
