An omni-directional multi-polarization and multi-frequency antenna

Author

Matsunaga, Mayumi ; Kakemizu, Kenji ; Candotti, Massimo ; Matsunaga, Toshiaki

Author_Institution

Dept. of Electr. & Electron. Eng., Ehime Univ., Matsuyama, Japan

fYear

2011

fDate

3-8 July 2011

Firstpage

2765

Lastpage

2768

Abstract

In this paper a single layer planar antenna, which simultaneously radiates circularly polarized waves and linearly polarized waves at two different frequencies for the mobile phone and ISM bands, is presented. Software simulations of the proposed design and associated measurements are reported as well. The presented antenna has the following features: (a) it is a single-layer electrically small planar antenna, (b) it radiates circularly polarized waves and linearly polarized waves simultaneously by means of a single feeding port without the need of a phase shifter, (c) it is omni-directional. The antenna design shown in this paper can be easily applied to single layer printed boards, which makes the antenna very suitable for mobile phone and RFID applications.

Keywords

mobile handsets; multifrequency antennas; planar antennas; polarisation; ISM bands; RFID applications; antenna design; circularly polarized waves; linearly polarized waves; mobile phone; multifrequency antenna; omnidirectional multipolarization; single layer planar antenna; single layer printed boards; single-layer electrically small planar antenna; Antenna measurements; Antennas; Loss measurement; Polarization; Prototypes; Radiofrequency identification; Spirals; ISM bands; RFID; mobile phone; multi-frequency; multi-polarization; omni-directional antenna; planar antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5997099

Filename

5997099