Miniaturized composite right/left-handed coplanar waveguide antenna for dual-frequency operation

Author

Chiu, Shih-Chia ; Chen, Shih-Yuan ; Hsu, Powen

Author_Institution

Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei

fYear

2009

fDate

18-22 Jan. 2009

Firstpage

139

Lastpage

142

Abstract

In this paper, a novel dual-band planar antenna based on the zeroth order resonator is presented. The key component of the antenna is the composite right/left-handed (CRLH) coplanar waveguide (CPW), which consists of series interdigital capacitors (IDCs) and shunt short-circuited stub inductors (SSIs). By relaxing the balance condition for the CRLH CPW structure, the proposed antenna can operate at the two zeroth order modes resulting in the desired dual-band characteristics. Using only three CRLH CPW unit cells, a miniaturized dual-band antenna is proposed and demonstrated to have similar input impedances, radiation patterns, and gains within the two bands.

Keywords

antenna radiation patterns; capacitors; coplanar waveguides; inductors; multifrequency antennas; planar antennas; waveguide antennas; composite right/left-handed coplanar waveguide antenna; dual-band planar antenna; dual-frequency operation; input impedances; interdigital capacitors; radiation patterns; shunt short- circuited stub inductors; Antenna accessories; Antenna radiation patterns; Capacitors; Coplanar waveguides; Dual band; Impedance; Inductors; Planar arrays; Shunt (electrical); Waveguide components; composite right/left-handed; coplanar waveguide; dual-band; zeroth order resonators;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Symposium, 2009. RWS '09. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2698-0

Electronic_ISBN

978-1-4244-2699-7

Type

conf

DOI

10.1109/RWS.2009.4957304

Filename

4957304