Circular Polarization Antenna with Elliptic Stripline Resonators on Glass Epoxy Substrates

This paper presents a X-band circular polarization antenna with elliptic stripline resonators on glass epoxy substrates. An elliptic antenna provides high efficiency to microwave energy transmission. Glass epoxy substrate provides reduced fabrication cost compared to conventional Teflon substrates. Wideband directive gain 16.5 dB and 1dB axial ratio in bandwidth 10 % by the array of 16 antennas. The directive gain became lower by dielectric loss of the glass epoxy substrate compared to Teflon.