JPH0469910U

JPH0469910U -

Info

Publication number: JPH0469910U
Application number: JP11273990U
Authority: JP
Priority date: 1990-10-26
Filing date: 1990-10-26
Publication date: 1992-06-22

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の一部省略した分解斜
視図、第２図は同上の実施例の説明用概略断面図
、第３図は同上の特性図、第４図は従来例の分解
斜視図、第５図は同上の説明用図面であつて、同
図ａは概略断面図、同図ｂは表カバーを外した状
態の概略上面図である。１は放射回路板、２は給電回路板、３は地導体
板、４はアンテナ回路、５はハウジング、５ａ，
５ｂは表、裏カバー、６はポスト、８ａ〜８ｃは
孔である。 Fig. 1 is an exploded perspective view of the embodiment of the present invention with some parts omitted, Fig. 2 is a schematic cross-sectional view for explaining the same embodiment, Fig. 3 is a characteristic diagram of the same, and Fig. 4 is an exploded view of the conventional example. The perspective view and FIG. 5 are explanatory drawings similar to the above, in which FIG. 5A is a schematic sectional view and FIG. 5B is a schematic top view with the front cover removed. 1 is a radiation circuit board, 2 is a feeding circuit board, 3 is a ground conductor board, 4 is an antenna circuit, 5 is a housing, 5a,
5b is a front and back cover, 6 is a post, and 8a to 8c are holes.

Claims

[Claims for Utility Model Registration] (1) An antenna circuit that is composed of a ground conductor, a feeding circuit, and a radiating circuit made of separate layers, and the radiating circuit and the feeding circuit are coupled by electromagnetic coupling is housed in a housing. In a planar antenna,
A planar antenna characterized in that a post that is interposed between the front and back parts of the housing and supports the front and back parts is provided so as to pass through the antenna circuit so as to pass through the position of the basic antenna element of the radiation circuit. (2) The planar antenna according to claim 1, wherein the housing is constituted by a front cover and a back cover, and the post is provided by integral molding on the front cover. (3) The planar antenna according to claim 1, wherein the housing is constituted by a front cover and a back cover, and the post is provided by integral molding on the front cover.