A Broadside-Scanning Half-Mode Substrate Integrated Waveguide Periodic Leaky-Wave Antenna

Author

Henry, Robert ; Okoniewski, Michal

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada

Volume

13

fYear

2014

fDate

2014

Firstpage

1429

Lastpage

1432

Abstract

A detailed study of a half-mode substrate integrated waveguide (SIW)-fed periodic leaky-wave antenna (LWA) with broadside scanning enabled is presented. Design techniques are outlined. Previously presented simulations have been improved with an enhanced structure model that incorporates substrate anisotropy. Additional theory has been applied to the analysis of the antenna to further validate its leaky-wave operation, and extra prototypes have been characterized for comparison to original measurements and simulations. The prototype antenna displayed a 32% impedance bandwidth within which a 10-dB gain over an 86 ° scan range (including broadside) was observed such that its radiation performance appears to be comparable to some of the newly popular SIW-based composite right/left-handed leaky-wave antennas.

Keywords

antenna feeds; antenna radiation patterns; leaky wave antennas; substrate integrated waveguides; waveguide antennas; LWA; antenna analysis; broadside-scanning half-mode substrate integrated waveguide-fed antenna; periodic leaky-wave antenna; radiation performance; Antenna measurements; Antennas; Bandwidth; Frequency measurement; Impedance; Prototypes; Substrates; Leaky-wave antenna; substrate integrated waveguide; traveling wave array;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2341217

Filename

6866135