Title :
A monolithic diode array millimeter-wave beam transmittance controller
Author :
Sjogren, Lance B. ; Liu, Hong-Xia L. ; Wang, Feng ; Liu, Tina ; Qin, Xiao-Hui ; Wu, Wenhsing ; Chung, Esther ; Domier, Calvin W. ; Luhmann, N.C., Jr.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
10/1/1993 12:00:00 AM
Abstract :
Amplitude control of transmitted millimeter-wave beams by monolithic Schottky diode arrays is demonstrated. An array containing 4800 diodes has demonstrated control over the range of 20-50% beam transmittance at 99 GHz and 20-70% beam transmittance at 165 GHz. Modulation testing on a second array (8640 diodes) with similar transmission characteristics has shown array control to 50 MHz with negligible loss of output response. An extensive evaluation performed for the 8640-diode array shows good agreement between array impedance parameters determined from quasi-optical measurements, theoretical calculations, and low-frequency C-V measurements. The results have extended the range of quasi-optical functions demonstrated by solid-state power-combining arrays for application to millimeter-wave systems
Keywords :
MMIC; Schottky-barrier diodes; microwave antenna arrays; 165 GHz; 8640-diode array; 99 GHz; amplitude control; array impedance parameters; low-frequency C-V measurement; millimeter-wave systems; modulation testing; monolithic Schottky diode arrays; monolithic diode array millimeter-wave beam transmittance controller; quasi-optical measurements; solid-state power-combining arrays; Circuits; Frequency measurement; Impedance measurement; Microstrip; Microwave antenna arrays; Microwave oscillators; P-i-n diodes; Power transmission lines; Schottky diodes; Semiconductor diodes;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
