Title :
Improved coupled-line microstrip circuit for L and S band oscillators
Author :
Rosen, Arye ; Reynolds, J.F. ; Thomas, James Jamal
Author_Institution :
RCA Laboratories, Princeton, USA
Abstract :
The coupled-bar microstrip circuit described here utilises a TRAPATT diode, and is ideally suited for systems applications such as i.f.f. transponder-transmitter sources and airborne altimeter sources. It is compact and rugged and allows high-efficiency operation. This circuit has delivered 150 W with 30% efficiency at L band, 150 W with 26% efficiency at 3.5 GHz, and 120 W with 19% efficiency at 3.85 GHz. The devices were operated with 0.5 ¿s pulses up to 1% duty cycle in a near jitterfree operation.
Keywords :
avalanche diodes; microwave oscillators; strip line components; transit time devices; TRAPATT diode; airborne altimeter; efficiency; microstrip circuit; microwave oscillators; transponder transmitter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19720098
