| 摘要 |
PROBLEM TO BE SOLVED: To provide a waveguide slot array antenna in which frequencies can be switched to cover wide-band frequencies by exchanging a slot plate even in a waveguide base designed for a certain setting frequency. SOLUTION: The waveguide slot array antenna comprises: the waveguide base including a feed port, a feed waveguide, a radiation waveguide, a T-branch and a side wall and the slot plate with a slot hole line formed by forming slot holes along a lengthwise direction at a position corresponding to the radiation waveguide. The waveguide slot array antenna uses a waveguide base optimized for a frequency f0, and uses a slot plate optimized for the frequency f0, for a frequency f0-Δf lower than the frequency f0, or for a frequency f0+Δf higher than the frequency f0. COPYRIGHT: (C)2008,JPO&INPIT
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