High Permittivity Dielectric Rod Waveguide as an Antenna Array Element for Millimeter Waves

Author

Pousi, J. Patrik ; Lioubtchenko, Dmitri V. ; Dudorov, Sergey N. ; Räisänen, Antti V.

Author_Institution

Dept. of Radio Sci. & Eng., SMARAD Centre of Excellence, Finland

Volume

58

Issue

3

fYear

2010

fDate

3/1/2010 12:00:00 AM

Firstpage

714

Lastpage

719

Abstract

Dielectric rod waveguide antennas of rectangular cross section have a number of advantages over conventional waveguide and horn antennas as an antenna array element. Dielectric rod waveguide antennas have relatively low cost, low losses, a broadband input match and a high packing potential. Additionally the radiation pattern of such antennas is almost frequency independent. In this paper the suitability of Sapphire rod waveguides for an antenna array is studied with simulations and prototype measurements at W band. Strong mutual coupling is observed when the elements are close to each other.

Keywords

antenna radiation patterns; dielectric waveguides; horn antennas; millimetre wave antenna arrays; permittivity; waveguide antenna arrays; Sapphire rod waveguides; W band mesurement; antenna array element; antenna radiation pattern; broadband input matching; dielectric rod waveguide antennas; high permittivity dielectric rod waveguide; horn antennas; millimeter wave antenna array; mutual coupling; rectangular cross section; Antenna arrays; Antenna radiation patterns; Broadband antennas; Costs; Dielectric losses; Frequency; Horn antennas; Impedance matching; Permittivity; Rectangular waveguides; Antenna array; dielectric rod waveguide; millimeter wave;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2039314

Filename

5361326