Beam Scanning Antenna with Photonically Tuned EBG Phase Shifters

Author

Chauraya, Alford ; Panagamuwa, Chinthana ; Vardaxoglou, J.

Author_Institution

Dept. of Electron. & Electr. Eng., Loughborough Univ.

fYear

2006

fDate

9-14 July 2006

Firstpage

2283

Lastpage

2286

Abstract

In this paper we describe a phase array antenna architecture which has been experimentally tested in the laboratory. A photoconductive phase shifter using microswitches has been proposed, fabricated and used in the antenna. We have demonstrated the antenna´s scanning capability near plusmn30deg. The ability to achieve such a wide beam scan when operated by low power LEDs makes them attractive over the existing mechanical or electrical phased array antennas. The half-power beamwidth (HPBW) of the pattern is almost maintained in all steered states. However it is worth noting that the level of the side lobes needs to reduced

Keywords

antenna phased arrays; antenna radiation patterns; beam steering; light emitting diodes; microswitches; microwave antenna arrays; millimetre wave antennas; phase shifters; photoconducting devices; photonic band gap; beam scanning antenna; electromagnetic band gap; half-power beamwidth; light emitting diodes; low power LED; microswitches; phase array antenna architecture; photoconductive phase shifter; photonically tuned EBG phase shifters; Lighting; Metamaterials; Optical control; Optical resonators; Optical scattering; Optical switches; Periodic structures; Phase shifters; Silicon; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1711047

Filename

1711047