| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna unit which can reduce a back gain with sensitivity of the whole antenna unit kept at a fixed level, and especially, can reduce sensitivity of a leftward circularly polarized wave than a conventional one with sensitivity of a rightward circularly polarized wave kept at a fixed level in the antenna unit for a circularly polarized wave. SOLUTION: The antenna unit 10 is provided with a plurality of grounding conductors 3a, 3b, and a radiation conductor 2 which is prepared on a part of the grounding conductors 3a, 3b intervening a dielectric body 1. A cut depth 4 is formed on at least one of the grounding conductors 3a, 3b, and the cut depth 4 is formed in outside of a region facing to the radiation conductor 2. COPYRIGHT: (C)2008,JPO&INPIT
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