Spiral antenna above a composite HIS reflector
説明
A spiral antenna radiates a circularly polarized (CP) wave in the two directions normal to the spiral plane (bidirectional radiation) [1]. For more effective utilization of the input power, this bidirectional radiation is transformed into unidirectional radiation using a conducting plane reflector [2]. Usually, the antenna height above the conducting plane is set to be one-quarter wavelength of the design frequency, to obtain an in-phase condition between the wave directly radiated into free space from the spiral and the wave reflected from the conducting plane.
収録刊行物
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- 2010 IEEE Antennas and Propagation Society International Symposium
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2010 IEEE Antennas and Propagation Society International Symposium 1-4, 2010-07-01
IEEE
