Title :
A Compact Multiband Antenna Based on DNG ZOR for Wireless Mobile System
Author :
Ji, Jeong Keun ; Kim, Gi Ho ; Seong, Won Mo
Author_Institution :
R&D Center, E.M.W. Antenna Co., Ltd., Seoul, South Korea
fDate :
7/1/1905 12:00:00 AM
Abstract :
A compact multiband antenna using a double-negative (DNG) zeroth-order resonator (ZOR) for global system for mobile communications (GSM850/1800/1900, 824894/17101880/18501990 MHz), wideband code division multiple access (WCDMA, 19202170 MHz), and wireless broadband (WiBro, 2.32.4 GHz) operations is presented. The proposed antenna having a total volume of 40 times 6 times 3 mm3 comprises a lower-band ZOR antenna part and an upper-band ZOR antenna part. The zeroth-order resonant properties are analyzed by magnitude and phase distributions of the surface magnetic field using near-field scanning system. The performance of the antenna is verified by experimental data obtained from fabrication and measurement. The antenna offers omnidirectional radiation patterns and measured radiation efficiencies exceeding about 53% and 41% for lower and upper bands, respectively.
Keywords :
antenna radiation patterns; antennas; broadband networks; cellular radio; code division multiple access; magnetic fields; mobile radio; DNG ZOR; GSM; WCDMA; WiBro; compact multiband antenna; double-negative zeroth-order resonator; frequency 1710 MHz to 1880 MHz; frequency 1850 MHz to 1990 MHz; frequency 1920 MHz to 2170 MHz; frequency 2.3 GHz to 2.4 GHz; frequency 824 MHz to 894 MHz; global system for mobile communication; magnitude distribution; near-field scanning system; omnidirectional radiation pattern; phase distribution; surface magnetic field; wideband code division multiple access; wireless broadband; wireless mobile system; Composite right/left-handed transmission line (CRLH-TL); metamaterial; multiband antenna; zeroth-order resonator (ZOR);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2009.2028908
