Title :
A periodic spatial power combining MESFET oscillator
Author :
Heinbockel, J. ; Mortazawi, A. ; Itoh, T.
Author_Institution :
Dept. of Electr. Eng., Univ. of Central Florida, Orlando, FL, USA
Abstract :
A planar periodic MESFET-based spatial power combiner was designed and fabricated in the X-band. A microstrip transmission line was periodically connected to four MESFET devices driving a linear microstrip antenna array. Frequency tuning as well as power combining was investigated. An effective radiated power of 3.2 W was obtained for this structure at an oscillation frequency of 11.2 GHz. A frequency tuning bandwidth of 36 MHz was achieved by varying the gate bias.<>
Keywords :
Schottky gate field effect transistors; antenna radiation patterns; microstrip antennas; microwave antenna arrays; microwave oscillators; solid-state microwave circuits; tuning; variable-frequency oscillators; 11.2 GHz; 3.2 W; 36 MHz; MESFET oscillator; SHF; X-band; frequency tuning bandwidth; gate bias; linear microstrip antenna array; microstrip transmission line; patch antenna; periodic spatial power combining; Frequency; Linear antenna arrays; MESFETs; Microstrip antenna arrays; Microstrip antennas; Oscillators; Planar transmission lines; Power combiners; Power transmission lines; Tuning;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.188038
