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2018-06-04

High Gain and Wideband Stacked Patch Antenna for S-Band Applications

By Ali Khaleghi, Seyed Sajad Ahranjan, and Ilangko Balasingham
Progress In Electromagnetics Research Letters, Vol. 76, 97-104, 2018
doi:10.2528/PIERL18031505

Abstract

In this paper design of a stacked circular patch antenna is presented for high gain and wideband applications. The main radiator of this design is a circular patch antenna, which is fed by using a coupling mechanism. Wide impedance bandwidth of 40% and linear polarization of gain 9.5 dBi at the center frequency of 2.4 GHz is measured. The antenna gain is further increased by using regular period of N circular patch directors on top of the main radiator. The first director is placed in a distance of about one half of the wavelength and the next directors are placed with regular distances of about a quarter of the wavelength. The antenna gain is tuned and increased with the number of the directors in the range of 9.5-16.5 dBi with N up to seventeen. The antenna impedance change due to the added directors is adjusted by using two parasitic circular patches between the main radiator and the first director. A prototype antenna is designed, manufactured and measured. The antenna operation can be further extended using dual feed geometry in which we can obtain two orthogonal radiation patterns or circular polarizations.

Citation


Ali Khaleghi, Seyed Sajad Ahranjan, and Ilangko Balasingham, "High Gain and Wideband Stacked Patch Antenna for S-Band Applications," Progress In Electromagnetics Research Letters, Vol. 76, 97-104, 2018.
doi:10.2528/PIERL18031505
http://www.jpier.org/PIERL/pier.php?paper=18031505

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