Substrate integrated waveguide leaky-wave antenna with reduced beam squint

Author

Gomez-Tornero, Jose Luis ; Martinez-Ros, Alejandro ; Alvarez-Melcon, Alejandro ; Mesa, Francisco ; Medina, Francisco

Author_Institution

Group of Electromagn. Appl. to Telecommun., Tech. Univ. of Cartagena, Cartagena, Spain

fYear

2013

fDate

6-10 Oct. 2013

Firstpage

491

Lastpage

494

Abstract

We present a substrate integrated waveguide implementation of a leaky-wave antenna that can be easily designed to reduce the beam squint. For this purpose, an arrangement of transversely coupled Fabry-Pérot cavities is proposed. A simple and accurate Transverse Equivalent Network is developed to analyze this structure, and simple design expressions are obtained from Transverse Resonance Equations. A two-resonator antenna scanning at an angle of 30° around 15GHz is illustrated, showing that the convenient location of the posts allows flexible control over the frequency-beam-scanning response. The theory is validated with full-wave simulations, demonstrating the reduction of the beam squint and the upgrade to double instantaneous bandwidth (6.6%) for a 2^nd-order design.

Keywords

dielectric resonator antennas; leaky wave antennas; waveguide antennas; Fabry-Pérot cavities; beam squint; flexible control; frequency 15 GHz; frequency beam scanning; resonator antenna; substrate integrated waveguide implementation; substrate integrated waveguide leaky wave antenna; transverse equivalent network; transverse resonance equations; Bandwidth; Broadband antennas; Cavity resonators; Leaky wave antennas; Substrates; beam squint reduction; coupled Fabry-Pérot resonators; scanning leaky-wave antennas; substrate integrated waveguide;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6686699