Low Profile, Directive and Ultra Wideband Antenna on a High Impedance Surface

Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany

Tagungsband: EuCAP 2009

Seiten: 5Sprache: EnglischTyp: PDF

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Thior, Aïta; Lepage, Anne Claire; Begaud, Xavier (Institut TELECOM, TELECOM ParisTech - LTCI CNRS UMR 5141, 46 rue Barrault 75634 Paris cedex 13, France)

This paper describes a directive and ultra wideband antenna with a thickness of l/20 at the lowest operating frequency. The low profile of the antenna is obtained by using a high impedance surface (HIS). In this article we explain the design of the antenna and of the high impedance surface, and then we describe how we optimize the radiating structure with the HIS. Radiation patterns are controlled by setting astutely resistive loads on the high impedance surface. This antenna operates from 3.2 GHz to 5 GHz with a broadside gain varying from 3.3dB to 9.35 dB. It can be used for UWB applications in European regulation context.