Title :
A circular loop antenna with a parasitic circular loop for triple-band operation
Author :
Ueda, Takeshi ; Hirasawa, Kazuhiro
Author_Institution :
Inst. of Inf. Sci. & Electron., Tsukuba Univ., Ibaraki, Japan
Abstract :
A circular loop with a parasitic circular loop for triple-band operation is investigated numerically by using the method of moments. There are a feed element and a parasitic element on the ground plane. Each loop has a gap and the position of the gap is adjusted to get triple frequency bands. The VSWR bandwidths (≤2) of 5%, 13% and 4% are obtained for a 1.55 GHz, 1.9 GHz and 2.44 GHz band.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; loop antennas; method of moments; mobile antennas; multifrequency antennas; wire antennas; 1.55 GHz; 1.9 GHz; 2.44 GHz; UHF; VSWR bandwidth; antenna radiation pattern; circular loop antenna; feed element; ground plane; method of moments; parasitic circular loop; parasitic element; portable telephones; triple frequency bands; triple-band operation; wire antennas; Antenna radiation patterns; Bandwidth; Data communication; Europe; Feeds; Frequency; Impedance; Moment methods; Telephony; Wire;
Conference_Titel :
Communication Systems, 2002. ICCS 2002. The 8th International Conference on
Print_ISBN :
0-7803-7510-6
DOI :
10.1109/ICCS.2002.1183316
