Title :
A multi-frequency microstrip-fed shorted square ring slot line antenna
Author :
Tehrani, H. ; Tae-Yeoul Yun ; Kai Chang
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A single-feed three-frequency shorted square ring slot antenna is described. The feed is an open-circuited microstrip line and is electromagnetically coupled to the ring slot antenna at two locations. The radiation pattern of all resonant frequencies is broadside and bidirectional. Impedance bandwidths of 3 to 9 percent and antenna gains on the order of 5 dB are achieved.
Keywords :
antenna feeds; antenna radiation patterns; multifrequency antennas; slot antennas; 2.4 GHz; 4.4 GHz; 5 dB; 5.1 GHz; antenna gain; bidirectional radiation pattern; broadside radiation pattern; impedance bandwidth; multi-frequency antenna; open-circuited microstrip line feed; resonant frequencies; single-feed three-frequency shorted square ring slot antenna; Antenna measurements; Antenna radiation patterns; Antenna theory; Bandwidth; Feeds; Frequency measurement; Microstrip antennas; Resonance; Resonant frequency; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.789462
