Global Patent Index - EP 0707354 A1

EP 0707354 A1 19960417 - Antenna device

Title (en)

Antenna device

Title (de)

Antenne

Title (fr)

Antenne

Publication

EP 0707354 A1 19960417 (EN)

Application

EP 95114485 A 19950914

Priority

JP 24558894 A 19941011

Abstract (en)

An antenna device designed so that the transmission output of an antenna circuit can be measured easily and accurately as the transmission output measured when the antenna device is removed as prescribed in the Wireless Telegraphy Act, even after the antenna device has been mounted on the main circuit board. The antenna device (51a; 51b) of the present invention has a radiating element (56a) and a current supply element (52). The current supply (52) element is formed of a metallic chassis (54; 84) having, as viewed in a cross section, the shape of a rectangle open at one side. The metallic chassis (54; 84) has an opposed portion (52a) opposed to a major surface of the radiating element (56a) in parallel with the same, and two leg portions bent (52b; 52c) downwardly and perpendicularly from shorter-side opposite ends of the opposed portion (52a). The metallic chassis (54) and a multilayer chip capacitor (68) are mounted on the obverse surface of the main circuit board (53a), and the metallic chassis (54) and a transmission output measuring terminal are connected to each other through the multilayer chip capacitor (68). <IMAGE>

IPC 1-7

H01Q 9/04; H01Q 1/24

IPC 8 full level

G01R 29/08 (2006.01); H01Q 1/24 (2006.01); H01Q 9/04 (2006.01); H01Q 13/08 (2006.01)

CPC (source: EP)

H01Q 1/243 (2013.01); H01Q 9/0421 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0707354 A1 19960417; EP 0707354 B1 20011031; DE 69523535 D1 20011206; DE 69523535 T2 20020801; JP 3235367 B2 20011204; JP H08111610 A 19960430

DOCDB simple family (application)

EP 95114485 A 19950914; DE 69523535 T 19950914; JP 24558894 A 19941011