期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 10, 期 -, 页码 1120-1123出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2011.2170950
关键词
Coplanar-waveguide-to-coplanar-strip (CPW-to-CPS) transition; multiband antenna; quasi-Yagi antenna
资金
- RIM
A novel coplanar waveguide-fed planar quasi-Yagi antenna for multiband operation is presented in this letter. The antenna consists of a basic quasi-Yagi element and a coplanar-waveguide-to-coplanar-strip (CPW-to-CPS) transition, which can excite the odd-mode electric fields at the CPS line though the CPW feed line. The proposed antenna can be used in multiband operation with directional radiation patterns whose front-to-back ratios approximate to 10 dB for desired bands. Its impedance bandwidth, determined by 10-dB reflection coefficient, covers numbers of present wireless communication systems, and the antenna can be simply integrated with other circuit components for its planar structure. Experimental data obtained from a laboratory prototype are also presented. The experimental results confirm the good performances observed by the electromagnetic simulations.
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