Abstract
In this paper, a Tri-band antenna for Global Positioning System (GPS) and Digital Video Broadcasting -Handheld (DVB-H) applications is proposed. It cover two bands for GPS L1 (1.557GHz) and L2 (1.21GHz) and one band for DVB-H (1.45GHz) applications. Circular polarization is achieved at both L1 and L2 bands. This paper is an extension of a pervious paper in which antenna was operating at two L1 and L2 bands and circular polarized radiation pattern was achieved at both bands. Proposed antenna can operate at three bands. An additional band is achieved in comparison with the previous design. Impedance bandwidth of 30 MHz & 45 MHz is achieved at L1 and L2 bands respectively and 34.5 MHz at DVB-H band. The antenna is circularly polarized at all the three bands. The gain of antenna is 8.1 dBi, 9.1 dBi and 9.50 dBi at 1.227GHz, 1.557GHz and 1.452 GHz respectively.
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