A Circularly Polarized Broadside Radiating “Herringbone” Array Design With the Leaky-Wave Approach

Author

Cameron, Trevor R. ; Sutinjo, Adrian T. ; Okoniewski, Michal

Author_Institution

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

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

826

Lastpage

829

Abstract

A series-fed “herringbone” microstrip traveling wave circularly polarized antenna array is designed to achieve broadside radiation. It is shown that such an antenna can be modeled as a periodic leaky-wave (LW) structure, providing insight into radiation characteristics of interest, such as the directivity and beam angle of the structure, particularly at broadside. Full-wave simulations as well as a prototype of the design verified the approach. The extracted leaky-wave number properly predicts the behavior seen in radiation measurements, and no degradation in antenna gain is seen at or near broadside.

Keywords

antenna radiation patterns; leaky wave antennas; microstrip antenna arrays; polarisation; antenna radiation; herringbone array; leaky wave antennas; microstrip antenna array; periodic leaky wave structure; traveling wave circular polarization; Antenna feeds; Antenna measurements; Arrays; Degradation; Frequency measurement; Microstrip; Microstrip antenna arrays; Microstrip antennas; Mutual coupling; Optical reflection; Periodic structures; Polarization; Virtual prototyping; Antenna arrays; leaky-wave antennas; microstrip antennas; microwave antennas;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2066950

Filename

5546890