| 摘要 |
A radio communications assembly ( 200 ) and an antenna radiator assembly ( 201 ). The antenna radiator assembly ( 201 ) forms part of the radio communications assembly ( 200 ) and is housed in a housing ( 202, 203 ). The antenna radiator assembly ( 201 ) has a circuit board ( 210 ) supporting electrical conductors ( 225 ) one of which is coupled to a feed point ( 130 ). There is also a ground plane ( 140 ) and an antenna radiator element ( 107 ) is coupled to the feed point ( 130 ). The antenna radiator element ( 107 ) is spaced from the ground plane ( 140 ) and a tertiary antenna radiator arm ( 155 ) spaced from the antenna radiator element ( 107 ). There is also a first band stop filter ( 150 ) disposed in a space ( 212 ) between the tertiary antenna radiator arm ( 155 ) and the antenna radiator element ( 107 ). The first band stop filter ( 150 ) provides electrical coupling of the antenna radiator element ( 1070 to the tertiary antenna radiator arm ( 155 ) at its band pass frequencies. Further, the first band stop filter ( 150 ) provides for electrically de-coupling of the antenna radiator element ( 107 ) from the tertiary antenna radiator arm ( 155 ) at its first band stop bandwidth.
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