An offset-fed microstrip antenna with reusable harmonics based on a composite right/left-handed transmission line resonator

Author

Pyo, Seongmin ; Baik, Jung-Woo ; Yoon, Won-Sang ; Choi, Junho ; Han, Sang-Min ; Kim, Young-Sik

Author_Institution

Dept. of Comput. & Radio Commun. Eng., Korea Univ., Seoul, South Korea

fYear

2009

fDate

Sept. 29 2009-Oct. 1 2009

Firstpage

1279

Lastpage

1282

Abstract

In this paper, a new reusable harmonic microstrip antenna with an offset feed is presented. The proposed antenna consists of 9 isotropic arranged square unit-cells with an offset-feed at the centre cell. Based on a composite right/left-handed transmission line (CRLH-TL) resonator and the cavity model of a microstrip antenna, additional resonant frequencies and radiation patterns are analyzed. Moreover, the theoretical approach is discussed for the proposed structure. The multiple resonant frequencies are occurred due to both of CRLH-TL and microstrip patch resonant characteristics. Particularly, the antenna has a gain of about 10 dBi and a patch-like radiation at the harmonic mode.

Keywords

antenna feeds; antenna radiation patterns; cavity resonators; metamaterials; microstrip antennas; antenna radiation pattern; cavity model; composite right-left-handed transmission line resonator; isotropic arranged square unit-cells; microstrip patch resonant characteristics; multiple resonant frequency; offset-fed microstrip antenna; patch-like radiation pattern; reusable harmonic microstrip antenna; Antenna accessories; Antenna feeds; Antenna radiation patterns; Microstrip antennas; Microstrip resonators; Pattern analysis; Resonance; Resonant frequency; Transmission line antennas; Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009. EuMC 2009. European

Conference_Location

Rome

Print_ISBN

978-1-4244-4748-0

Type

conf

Filename

5296170