Title :
Active endfire antenna elements and power combiners using notch antennas
Author :
Navarro, J.A. ; Shu, Y.H. ; Chang, K.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A Gunn device integrated with a planar, endfire notch antenna is described. A simple transmission-line model, has been developed to optimize the passive and active circuit parameters. An electronic tuning bandwidth of 275 MHz centered at 9.33 GHz with a maximum power output of 37.5 mW was accomplished. Two active notches in a broadside array configuration were injection-locked at 9.484 GHz with a 30-MHz locking bandwidth and well over 90% power combining efficiency.<>
Keywords :
Gunn diodes; active antennas; microwave antenna arrays; tuning; waveguide components; 275 MHz; 30 MHz; 9.33 GHz; 9.484 GHz; 90 percent; Gunn device; SHF; active endfire antenna elements; broadside array configuration; electronic tuning bandwidth; notch antennas; power combiners; power combining efficiency; transmission-line model; Antenna arrays; Bandwidth; Coplanar waveguides; Diodes; Gunn devices; Impedance; Phased arrays; Power combiners; Slot antennas; Slotline;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99699
