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Corrugated circular microstrip patch antennas for miniaturisation

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4 Author(s)
Lee, S. ; Chungnam Nat. Univ., Daejon, South Korea ; Woo, J. ; Ryu, M. ; Shin, H.

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

Published in:

Electronics Letters  (Volume:38 ,  Issue: 6 )