Title :
A balanced diode grid mixer
Author :
Swisher, R.R. ; Lecuyer, F. ; Chio, I.F. ; Jung-Chih Chiao ; De Lisio, M.P.
Author_Institution :
Dept. of Electr. Eng., Hawaii Univ., Honolulu, HI, USA
Abstract :
We report the first results from a planar 16-element balanced quasi-optical diode mixer grid. Each unit cell contains four Schottky diodes arranged in a quad bridge configuration. We report a conversion loss of 14 dB at an RF frequency of 3.44 GHz, an IF frequency of 340 MHz, and an incident LO power of 7.3 /spl mu/W per diode. We report a third-order intercept of 4.7 dBm. Antenna pattern and polarizer tuning curves are presented, and our results are compared with theoretical predictions.
Keywords :
Schottky diode mixers; electromagnetic wave polarisation; microwave mixers; 14 dB; 3.44 GHz; 340 MHz; 7.3 muW; Schottky diodes; antenna pattern; balanced diode grid mixer; planar 16-element; polarizer tuning curves; quad bridge configuration; quasi-optical diode mixer grid; Bridge circuits; Couplers; Dynamic range; Frequency conversion; Impedance matching; Polarization; RF signals; Radio frequency; Schottky diodes; Transformers;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779823
