Linearly Polarized Radial Line Patch Antenna With Internal Rectangular Coupling Patches

Author

Masa-Campos, J.L. ; Sierra-Pérez, M.

Author_Institution

Grupo de Sist. de Radiocomunicacionesy Comun. Opticas, Univ. Autonoma de Madrid, Madrid, Spain

Volume

59

Issue

8

fYear

2011

Firstpage

3049

Lastpage

3052

Abstract

A linearly polarized radial line patch antenna with internal coupling patches is presented. A non-resonant antenna structure has been designed, with a 0.68 λ₀ radial spacing between element rings. A uniform amplitude and phase feed scheme has been implemented. Therefore, a phase compensation microstrip structure (external to the radial waveguide) has been included for a broadside radiation beam. Likewise, a compensation method has been used to avoid internal reflection problems in the waveguide. An antenna prototype has been built. 28.2 dBi gain and 70% efficiency peak values have been measured at DBS band, with reasonable agreement between simulations and measurements.

Keywords

antenna feeds; antenna radiation patterns; compensation; linear antenna arrays; microstrip antenna arrays; DBS band; antenna prototype; broadside radiation beam; compensation method; internal rectangular coupling patch; linearly polarized radial line patch antenna; nonresonant antenna structure; phase compensation microstrip structure; phase feed scheme; radial spacing; Antenna measurements; Antennas; Arrays; Couplings; Optical waveguides; Reflection; Internal rectangular coupling patch; microstrip phase compensation line; radial line patch antenna (RLPA);

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2011.2158945

Filename

5784312