Ming-An Chung 1, Chia-Hao Ku2 and Xin-Yu Chen1
1Department of Business Unit 1, Quanta Computer Inc., Taoyuan, Taiwan 333, R.O.C.
2Department of Electrical Engineering, Ming Chi University of Technology, New Taipei City, Taiwan 243, R.O.C.
Received:
December 25, 2017
Accepted:
March 11, 2018
Publication Date:
September 1, 2018
Download Citation:
||https://doi.org/10.6180/jase.201809_21(3).0009
ABSTRACT
In this paper, a printed quasi-self-complementary antenna (QSCA) suitable for GPS/DCS/ PCS/UMTS/LTE/WiMAX/WLAN applications is introduced and studied. It uses a pentagonal shape to achieve three resonant modes for multiband operation. The proposed antenna, which is fed by a 50 coplanar waveguide without using a matching circuit, consists of a C-shaped ground and a half pentagon monopole-type radiator. By properly designing a self-complementary structure, the antenna can realize a flat impedance variation across two wide operating bands, covering 1.472.76 GHz and 5.056.51 GHz. It is fabricated on a 0.8 mmFR4 substrate and also features a compact physical size of 40 40 mm2, only 0.196 at the lowest operating frequency of 1.47 GHz. The proposed antenna has advantages of uniplanar structure, easy fabrication, low cost, and multiband operation. Also, the impedance matching performance of three resonant modes for the antenna can be adjusted flexibly. Simulated and measured results demonstrate that good radiation performance of the antenna is obtained as well.This makesthe proposed antenna design suitable for practical applications. Details of the design process and the experimental results of the constructed antenna are presented.
Keywords:
Monopole Antenna, Multi-band, Pentagon, Self-complementary
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