PILLBOX ANTENNA
PURPOSE:To narrower the occupied area of an antenna by installing an array antenna constituted of plural radiating elements arranged in the inside of a pillbox antenna, and adopting a composite structure so that the antenna aperture is used in common in two frequency bands. CONSTITUTION:The antenna...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PURPOSE:To narrower the occupied area of an antenna by installing an array antenna constituted of plural radiating elements arranged in the inside of a pillbox antenna, and adopting a composite structure so that the antenna aperture is used in common in two frequency bands. CONSTITUTION:The antenna consists of a conductor curved face plate 1 of the pillbox antenna, the 1st and 2nd conductor plane plates 2, 3 of the pillbox antenna, a feeding waveguide 4 having a waveguide aperture being the primary radiator of the pillbox antenna and monopoles 5a-5d installed in the inside of the pillbox antenna, and a monopole array in a frequency f2 is installed inside of the pillbox antenna in the operating frequency f1 as the array antenna, and the reflecting plate of the monopole arry is constituted of the microstrip antenna. |
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