Circular Polarization Antenna with Elliptic Feed-and Reactance- Elements using Glass-epoxy Substrates

This paper present circular polarization stripline antenna with elliptic feedand reactance-elements. Glasscloth-epoxy multilayer substrates were used for fabrication to realize low fabrication cost. Wideband directive gain 1GHz or more at 10 GHz. Axial ratio is 1dB or less, and directive gain is 10 dB. It was estimated that included microwave energy in the elliptic resonator is less than the energy included the linearly truncated circular disc resonator. Key-Words: Circular polarization plane antenna, horizontal radiation, S-type routing wire, grounded square collar