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A SPIRAL ANTENNA WITH INTEGRATED PARALLEL-PLANE FEEDING STRUCTURE
2014
Progress In Electromagnetics Research Letters
In practical applications, the low-profile spiral antennas suffer from the lack of proper planar feeding ways. The vertical balun always has a significantly long length, inconsistent with the requirements of the low profile spiral antenna geometry. A spiral antenna with integrated parallelplane feeding structure is proposed in this paper. The antenna used has obviously improved axial ratio compared to the equiangular spiral antenna at low frequencies. And the traditional balun in the third
doi:10.2528/pierl14012708
fatcat:5x4a4hgvv5b2lpmmi647umgcim