EXPERIMENTAL STUDY OF ULTRA-BROADBAND PATCH ANTENNA USING A WEDGE-SHAPED AIR SUBSTRATE

摘要

In this paper, an ultra-broadband patch antenna using a wedge-shaped air dielectric substrate is introduced, By adjusting the angle α, the experimental ratio bandwidth of S{sub}11 ≤ -10dB reaches 8.8:1, covering frequencies from 3.05 to 26.87 GHz. The measured impedance locus and radiation patterns at f = 6 GHz and at f = 18 GHz both are presented, and they show broadband characteristics and stability across the whole operating frequency bands, respectively.