Title :
Triple-frequency annular-ring slot antennas fed by CPW and microstrip line
Author_Institution :
Dept. of Electron. Eng., Cheng-shiu Inst. of Technol., Kaoshiung, Taiwan
Abstract :
In this paper, we present a simple design of a triple-frequency annular-ring slot antenna fed by coplanar waveguide or microstrip line. The proposed antenna consists of three concentric annular-ring slots and the three operating frequencies are obtained by means of the multiple radiating annular-ring slots, each supporting strong electric field and radiation at resonance. The three operating frequencies of the proposed antenna are mainly decided by the circumferences of the three annular-ring slots, respectively.
Keywords :
UHF antennas; antenna feeds; coplanar waveguides; microstrip lines; microwave antennas; multifrequency antennas; slot antennas; 1.74 GHz; 1.8 GHz; 2.38 GHz; 2.91 GHz; 3.11 GHz; CPW-fed antennas; annular-ring slot antennas; concentric annular-ring slots; microstrip-fed antennas; multiple radiating slots; slot circumference frequency dependence; triple-frequency antennas; Antenna feeds; Antenna measurements; Coplanar waveguides; Dielectric substrates; Loaded antennas; Microstrip antennas; Polarization; Resonance; Resonant frequency; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219298
