CPW-Fed Multiband Monopole Antenna Loaded With DCRLH-TL Unit Cell

Author

Hai-Peng Li ; Guang-Ming Wang ; Xiang-jun Gao ; Li Zhu

Author_Institution

Air & Missile Defense Coll., Air Force Eng. Univ., Xi´an, China

Volume

14

fYear

2015

fDate

7/7/1905 12:00:00 AM

Firstpage

1243

Lastpage

1246

Abstract

A coplanar waveguide (CPW)-fed multiband monopole antenna based on loading one dual composite right/left-handed (DCRLH) transmission line (TL) unit cell is presented. The antenna works at 3.22 GHz, 4.57 GHz, and 5.71 GHz. The first resonant frequency (3.22 GHz) is a little lower than the first resonance (3.38 GHz) of the corresponding conventional monopole, the second (4.42 GHz) is much lower than the second resonance (9 GHz) of the conventional monopole, and the third one achieves the zeroth-order (ZOR) resonance. Also the electromagnetic (EM) simulation results demonstrate that the proposed antenna has satisfactory omni-directional radiation patterns with reasonable gains. Finally the antenna is fabricated and measured; measurements and EM simulations are in good agreement.

Keywords

antenna feeds; antenna radiation patterns; coplanar waveguides; monopole antennas; multifrequency antennas; CPW-fed multiband monopole antenna; DCRLH-TL unit cell; EM simulations; coplanar waveguide; dual composite right/left-handed transmission line unit cell; electromagnetic simulation results; frequency 3.22 GHz; frequency 4.57 GHz; frequency 5.71 GHz; omni-directional radiation patterns; resonant frequency; Antenna measurements; Antenna radiation patterns; Loaded antennas; Loading; Resonant frequency; Coplanar waveguide (CPW); dual composite right/left-handed transmission line; monopole; multiband; zeroth-order mode;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2015.2400054

Filename

7031359