Ship container air hole cover antenna housing
The invention relates to the technical fields of a Beidou navigation user terminal and an automatic identification system (AIS) of a ship, and specifically discloses a ship container air hole cover antenna housing; the ship container air hole cover antenna housing comprises a cavity body, an antenna...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical fields of a Beidou navigation user terminal and an automatic identification system (AIS) of a ship, and specifically discloses a ship container air hole cover antenna housing; the ship container air hole cover antenna housing comprises a cavity body, an antenna body and an outer shield from the bottom up; the antenna body and the outer shield are fixed on thecavity body, and the outer shield seals the antenna body in the outer shield; the antenna body sequentially comprises circularly polarized antennas with different frequency bands which are uniformlydistributed by taking an AIS antenna as the center in the first layer, an impedance matching network in the second layer, an impedance matching network bottom plate in the third layer, and a connectoron the lowest side from the top to bottom in sequence; the circularly polarized antennas are welded on the impedance matching network in a coaxial feeding mode, and are pressed on the impedance matching network bottom plate; a |
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