A Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna Excited by an Archimedean Spiral Slot

Author

Meng Zou ; Jin Pan ; Zaiping Nie

Author_Institution

Dept. of Microwave Eng., Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China

Volume

14

fYear

2015

fDate

2015

Firstpage

446

Lastpage

449

Abstract

A wideband circularly polarized (CP) rectangular dielectric resonator antenna (DRA) is presented. An Archimedean spiral slot is used to excite the rectangular DRA for wideband CP radiation. The operating principle of the proposed antenna is based on using a broadband feeding structure to excite the DRA. A prototype of the proposed antenna is designed, fabricated, and measured. Good agreement between the simulated and measured results is attained, and a wide 3-dB axial-ratio (AR) bandwidth of 25.5% is achieved.

Keywords

antenna feeds; antenna radiation patterns; broadband antennas; dielectric resonator antennas; electromagnetic wave polarisation; slot antennas; spiral antennas; AR bandwidth; Archimedean spiral slot; DRA; broadband feeding structure; wide 3-dB axial-ratio bandwidth; wideband CP radiation; wideband circularly polarized rectangular dielectric resonator antenna; Antenna measurements; Broadband antennas; Dielectric resonator antennas; Dielectrics; Spirals; Wideband; Archimedean spiral slot; circular polarization (CP); dielectric resonator antenna (DRA); wideband antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2364296

Filename

6933872