Antenna apparatus and method for manufacturing the same

H - Electricity – 01 – Q

Patent

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Details

H01Q 1/48 (2006.01) H01Q 9/30 (2006.01)

Patent

CA 2717856

It is possible to provide an antenna device and a method for manufacturing the antenna device which can eliminate an unstable factor caused by antenna element connection, suppress characteristic degradation attributed to the affect of an environment and an coaxial cable, and maintain a stable characteristic in various installation positions. The antenna device includes: a coaxial cable body (6) having a core (2) as a feed line which is covered by a first coating dielectric unit (3), a ground line (4), and a second coating dielectric body (5) in this order; a main antenna element (7) formed by the core (2) protruding together with the first coating dielectric unit (3) from the tip end of the coaxial cable body (6); and an impedance adjustment element (8) formed by the ground line (4) solely protruding from the tip end of the coaxial cable body (6) while extending in a direction different from the extension direction of the main antenna element (7) and fixed to the tip end of the coaxial cable body (6).

L'invention concerne un dispositif d'antenne et un procédé de fabrication du dispositif d'antenne qui permet d'éliminer un facteur instable dû à la connexion d'un élément d'antenne, de supprimer la dégradation de caractéristique attribuée à l'effet d'un environnement et d'un câble coaxial, et de maintenir une caractéristique stable dans diverses positions d'installation. Le dispositif d'antenne comprend : un corps de câble coaxial (6) comportant une âme (2) en tant que ligne de source qui est recouverte d'une première unité diélectrique de recouvrement (3), d'une ligne de masse (4) et d'un second corps diélectrique de recouvrement (5), dans cet ordre ; un élément d'antenne principal (7) formé par l'âme (2) faisant saillie avec la première unité diélectrique de recouvrement (3) de l'extrémité terminale du corps de câble coaxial (6) ; et un élément d'ajustement d'impédance (8) formé par la ligne de masse (4) seule faisant saillie de l'extrémité terminale du corps de câble coaxial (6) tout en s'étendant dans une direction différente de la direction d'extension de l'élément d'antenne principal (7) et fixé à l'extrémité terminale du corps de câble coaxial (6).

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