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| 概要 |
A basic theory of a longitudinal slot in a rectangular waveguide with a lossy flange is presented. The surface impedance concept and equivalence principle are used to formulate the problem. The effect...s of a lossy ground surface on the characteristics of an aperture antenna are discussed. The numerical results agree very well with measured results of an X-band slot antenna, which has a conducting flange covered with an absorbing material. The results show the validity of the application of the surface impedance concept to the problem of aperture antennas with lossy ground surfaces.続きを見る
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