Title :
A Compact CPW-Fed Slotted Patch Antenna for Dual-Band Operation
Author :
Liu, Wen-Chung ; Wu, Chao-Ming ; Chu, Nien-Chang
Author_Institution :
Dept. of Aeronaut. Eng., Nat. Formosa Univ., Yunlin, Taiwan
fDate :
7/2/1905 12:00:00 AM
Abstract :
A compact coplanar waveguide (CPW)-fed patch antenna designed by simply embedding two types of shaped slots into a rectangular patch for achieving dual-band operation is presented. The use of embedded slots can effectively excite multiresonant modes together with good dual-impedance bandwidths, especially ultrawide for the upper bandwidth. By fabricating and measuring the prototype of the proposed optimal antenna, dual operating bands with 10-dB return-loss bandwidths of about 230 MHz centered at 2.42 GHz and of about 73% ranging from 4.8 to 9.62 GHz covering the required bandwidths of 2.4/5.2/5.8 GHz WLAN standards and the C-band satellite communication were obtained. Also, a stable monopole-like radiation pattern and an average antenna gain of 1.4 and 5.1 dBi, respectively, across the dual operating bands have been measured.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; coplanar waveguides; microstrip antennas; microwave antennas; multifrequency antennas; satellite communication; wireless LAN; C-band satellite communication; UHF antennas; antenna radiation pattern; average antenna gain; bandwidth 2.4 GHz; bandwidth 230 MHz; bandwidth 5.2 GHz; bandwidth 5.8 GHz; coplanar waveguide feed; dual-band antenna; embedded slots; frequency 2.42 GHz; frequency 4.8 GHz to 9.62 GHz; microwave antennas; multiresonant modes; rectangular patch; slotted patch antenna; wireless LAN; Coplanar waveguide (CPW); WLAN; dual-band; patch antenna; ultrawideband;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2010.2044135