Title :
Fault tolerance analysis and measurement of a spatial power amplifier
Author :
Ortiz, S. ; Ozkar, M. ; Yakovlev, A. ; Steer, M. ; Mortazawi, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
The performance degradation due to device failures in a spatial power combining system is presented in this paper, including analysis and measurement. For this study, a 5/spl times/5 amplifier array, employing 17 dBm (P1 dB) MMIC amplifiers, has been designed and tested. Individual unit cells have been turned off in order to represent a system with device failures. Results for both simulated and measured array performance versus device failures are given.
Keywords :
MMIC amplifiers; antenna radiation patterns; arrays; fault tolerance; microstrip antenna arrays; microwave power amplifiers; MMIC amplifiers; amplifier array; device failures; fault tolerance analysis; performance degradation; spatial power amplifier; spatial power combining system; Degradation; Dielectrics; Fault tolerance; Feeds; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Phased arrays; Power amplifiers; Power measurement;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967262
