Active Endfire Antenna Elements and Power Combiners Using Notch Antennas

摘要

A Gunn device has been integrated with a planar, endfire notch antenna. A wideelectronic 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: Active antennas, Spatial power combiners, Notch antennas, Gunn oscillators. Reprints. (SDW)