Mobile antenna mounted on a vehicle body
A mobile, antenna technology, applied in the directions of antennas, antennas, independent non-interacting antenna combinations suitable for movable objects, etc., can solve the problem that diversity systems are difficult to improve the receiving efficiency of mobile antennas
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no. 1 example
[0059] figure 1 A mobile antenna 1 according to a first embodiment of the invention is schematically shown, which is fastened to an electrically conductive body frame B of a vehicle, such as a passenger car 3 .
[0060] Such as figure 1 As shown, the mobile antenna 1 is formed as, for example, a film antenna. In particular, the mobile antenna 1 is provided with an antenna element 2, which can be made of any conductive member, such as a wire, rod, tube, etc., and forms a loop. The antenna element 2 is attached to the inner surface 4a of a rectangular front windshield (windshield) 4, for example, by a member such as a film. The antenna element 2 is located at the upper right corner portion 4 b of the inner surface 4 a of the front windshield 4 .
[0061] The vehicle body frame B is provided with a windshield frame portion WF. The front windshield frame WF includes a front edge of a top panel 5 (top) and a bottom BP opposite to the top. In addition, the front windshield fram...
no. 2 example
[0239] A second embodiment of the present invention will be described below with reference to FIGS. 19 to 21 . It should be noted that the description of the relevant elements of the second embodiment, which are substantially the same as those of the first embodiment, is omitted, so that the remaining elements related to the second embodiment will be described, which are the same as those of the first embodiment. The related components are different.
[0240] FIG. 19A schematically shows a mobile antenna 111 according to a second embodiment of the present invention, which is fixed to the body frame B of the vehicle 3 .
[0241] The mobile antenna 111 is associated with an antenna element 112 forming a loop. The antenna element 112 is located, for example, at the upper right corner portion 4b of the inner surface 4a of the front windshield 4 .
[0242] The antenna element 112 has a first linear element portion 112a, a second linear element portion 112b, and a third linear ele...
no. 3 example
[0295] A third embodiment of the present invention will be described below with reference to FIGS. 22A to 22C. It should be noted that the description of the relevant elements of the third embodiment, which are substantially the same as those of the first and second embodiments, is omitted, so that the remaining elements relevant to the third embodiment will be described, and these elements are the same as those of the same first embodiment. The elements related to the first and second embodiments are different.
[0296] FIG. 22A schematically shows a mobile antenna 201 fixed to the body frame B of a vehicle 3 according to a third embodiment of the present invention.
[0297] The mobile antenna 201 is provided with a linear antenna element 202 having an open end 202b. The linear antenna element 202 is located, for example, at the upper right corner portion 4b of the inner surface 4a of the front windshield 4 .
[0298] The linear antenna element 202 is arranged along the cen...
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