Title :
A double folded, capacitive-fed, cavity-backed microstrip antenna
Author :
Ooi, B.L. ; Shen, Q. ; Leong, M.S.
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
A novel folded capacitive-fed microstrip antenna with length of /spl lambda//3 and placed over a cavity backing is proposed. Compared to the small rectangular patch antenna by Luk (see Electronics Letters, vol.34, no.25, p.2366-67, 1998 ), our proposed antenna has a large impedance bandwidth of 20.1%. The cross-polarization level is /spl sim/-17dB.
Keywords :
antenna feeds; capacitance; electric impedance; microstrip antennas; microwave antennas; mobile antennas; HP8510 network analyzer; IE3D; antenna length; capacitive-fed antenna; capacitive-fed microstrip antenna; cavity-backed microstrip antenna; cross-polarization level; double folded microstrip antenna; impedance bandwidth; impedance locus; microwave frequencies; mobile communications; rectangular patch antenna; Antenna measurements; Antennas and propagation; Bandwidth; Feeds; Impedance; Inductance; Microstrip antennas; Probes; RLC circuits; Resonance;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.959498
