Wideband Octagonal Dual Circularly Polarized Sub-array Antenna for Ku-Satellite Systems
Keywords:
Antenna array, circular polarization, feeding network, satellite antenna, wideband antennaAbstract
In this paper the analysis and design of a dual circularly polarized 4×4 antenna array operating in Ku-band are discussed with emphasis on its sequential feeding network. The dual circular polarization is achieved by feeding a stacked octagonal patches with a wideband branch line coupler. The proposed 4×4 antenna array is based on two separate sequential feeding networks for LH and RH circular polarizations. The advantage of the proposed feeding network is that it is implemented on a single layer. Simulation results by using both HFSS and CST are presented for comparison. In addition, experimental verifications are presented.
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References
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