Title :
Corrugated circular microstrip patch antennas for miniaturisation
Author :
Lee, S. ; Woo, J. ; Ryu, M. ; Shin, H.
Author_Institution :
Chungnam Nat. Univ., Daejon, South Korea
fDate :
3/14/2002 12:00:00 AM
Abstract :
New concepts for a corrugated circular microstrip patch antenna (CCMPA), which is moving in the radial direction and works at a frequency of 1.575 GHz (GPS), using linear and circular polarisation for miniaturisation are designed and fabricated. The linearly-polarised antenna has a reduction of 8.08% in patch diameter, a reduction of 21.12% in area and an increase of 1% in bandwidth compared with a circular microstrip patch antenna (CMPA). The radiation patterns of E-and H-plane for a corrugated-type antenna follow the general CMPA and the gain of the linearly-polarised antenna is 6.8 dBd. Also, the circularly-polarised antenna has a gain of 2.8 dBd and an axial ratio of 1.3 dBd at 1.575 GHz
Keywords :
antenna radiation patterns; microstrip antennas; 1.575 GHz; GPS; axial ratio; circular polarisation; corrugated circular microstrip patch antenna; gain; linear polarisation; miniaturisation; radiation pattern;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020181
