Abstract
AbstractIn this article, a simple method for designing feed networks for wide‐beam multi‐fed helical antennas, suitable for satellite communications, is studied. Power division with similar phase differences for these antennas is obtained using serial feed network. The number of antenna arms is arbitrary, since the serial feed can be designed for any feasible number of outputs. Triple‐fed helical antenna is studied in this article, as an example. The proposed S band triple‐fed antenna benefits from 3 dB AR bandwidth of 24%. It has also low‐level reflection coefficients throughout the bandwidth.
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