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Bandwidth Enhancement for the GPS Patch Antenna Using the Quadrature Hybrid Chip Circuit
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 Title & Authors
Bandwidth Enhancement for the GPS Patch Antenna Using the Quadrature Hybrid Chip Circuit
Son, Taeho;
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In this paper, two ports feeding a microstrip patch antenna using a quadrature hybrid circuit was proposed to enhance the bandwidth for the global positioning system(GPS). The square patch was designed, and the probe feeding was applied. The quadrature hybrid chip circuit for two-port feeding was designed, and output ports that have a 90-degree phase difference feed to the patch antenna. The designed patch and quadrature hybrid circuit were implemented on an FR4 board, and were combined. The measurement of the bandwidth within a voltage standing wave ratio(VSWR) of 2: 1 and axial ratio(AR) in 3dB were 29 %BW(1,230~1,700 MHz) and 15.87 %BW(1,400~1,650 MHz), respectively. The peak gain at the GPS center frequency was measured at 2.75 dBi in an anechoic chamber.
GPS Antenna;Microstrip Patch;Quadrature Hybrid;Probe Feeding;
 Cited by
Vincent F. Fusco, Robert Cahill, and Rong-Lin Li, "Quadrifilar loop antenna", IEEE Transaction on Antennas and Propagation, vol. pp. 115-120, Jan. 2003.

Arlon T. Adams, Robert K. Greenough, Robert F. Wallenberg, Ada Mendelovicz, and C. Lumjiak, "The quadrifilar helix antenna" IEEE Trans. on Antennas and Propagation, vol. AP-22, pp. 173-178, May, 1974.

J. D. Lohn, W. F. Kraus, D. S. Linden, J. Lohn, W. Kraus, and D. Linden, "Evolution optimization of a quadrifilar helical antenna", Proc. of the IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting, vol. 3, pp. 814-817, Jun. 2002.

Kin-Lu Wong, Compact and Broadband Microstrip Antennas, New York. John wiley & Sons, 2002.

C. A. Balanis, Antenna Theory Analysis and Design, John Wiley & Sons, 1997.

Robert A. Sainati, CAD of Microstrip Antennas for Wireless Applications, Artech House, 1996.

고지환, 김영식, 박의준, 박준석, 이홍민, 최재훈, 마이크로파공학 개정 3판, 범한서적, 2011.