Title :
A metamaterial-based symmetrical periodic antenna with efficiency enhancement
Author :
Pyo, Seongmin ; Baik, Jung-Woo ; Cho, Sang-Hyeok ; Kim, Young-Sik
Author_Institution :
Dept. of Radio Commun. & Eng., Korea Univ., Seoul
Abstract :
A metamaterial-based microstrip patch antenna with a symmetrical periodic structure is proposed in this paper. Additionally, the efficiency enhancement method of the proposed symmetrical periodic antenna (SPA) is also presented using triangular slots embedded on the ground plane. The proposed antenna has a monopole-like omni-directional radiation occurred by the characteristic of composite right/left handed (CRLH) transmission line (TL). The proposed antenna resonates at 3.325 GHz in the zeroth-order frequency and 5.165 GHz in the right-handed (RH) frequency due to the symmetrical periodicity, respectively. The measured efficiency of the proposed antenna is increased about 13% at the zeroth-order resonant mode by increasing the triangular slot length (L) from 0 mm to 5.5 mm.
Keywords :
antenna radiation patterns; metamaterials; microstrip antennas; periodic structures; slot antennas; composite right/left handed transmission line; frequency 3.325 GHz; frequency 5.165 GHz; metamaterial based symmetrical periodic antenna; microstrip patch antenna; monopole like omnidirectional radiation; symmetrical periodic structure; Antenna measurements; Frequency; Length measurement; Microstrip antennas; Patch antennas; Periodic structures; Resonance; Slot antennas; Transmission line antennas; Transmission line measurements;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958019
