Title :
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
fDate :
Sept. 29 2009-Oct. 1 2009
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;
Conference_Titel :
Microwave Conference, 2009. EuMC 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4748-0
