Low-Profile, Switched-Beam Diversity Antennas Using High-Impedance Ground Planes

Abstract

We explore high-impedance surfaces for use in low-profile, switched-beam diversity antennas for mobile communications. High-impedance surfaces provide two important advantages for low-profile antennas: (1) They suppress the propagation of surface currents. (2) Image currents appear inphase, rather than our-of-phase as on an ordinary metal ground plane. This… (More)

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