Title :
A compact wideband balanced mixer
Author :
Tsai, M.C. ; Schindler, M.J. ; Struble, W. ; Ventresca, M. ; Binder, R. ; Waterman, R. ; Danzilio, D.
Author_Institution :
Raytheon Co., Lexington, MA, USA
Abstract :
A compact wideband balun using a common-gate/common-source approach has been developed. Using this active balun on the LO port, a passive interdigital microstrip balun on the RF port, and a passive lumped element L-C balun on the IF port, a wideband balanced mixer was designed, fabricated and tested. This paper describes the mixer circuit design based on a new passive FET model. Test results of the active balun and the mixer including conversion loss, noise figure, and third order intercept point are presented for RF frequencies from 4 to 18 GHz.<>
Keywords :
MMIC; distributed parameter networks; impedance matching; lumped parameter networks; mixers (circuits); 4 to 18 GHz; IF port; LO port; RF port; active balun; common-gate/common-source; compact wideband balanced mixer; conversion loss; mixer circuit design; noise figure; passive FET model; passive interdigital microstrip balun; passive lumped element L-C balun; third order intercept point; Circuit synthesis; Circuit testing; FETs; Frequency conversion; Impedance matching; Microstrip; Mixers; Noise figure; Radio frequency; Wideband;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335373
