EP 2063486 A1 20090527 - Antenna apparatus
Title (en)
Antenna apparatus
Title (de)
Antennenvorrichtung
Title (fr)
Appareil d'antenne
Publication
Application
Priority
JP 2007290363 A 20071108
Abstract (en)
Provided is an antenna apparatus including: an antenna element (3) having a radiation conductor (2) formed on a surface of a base substance (1); and a matching circuit (32) formed on the base substance (1) to match with the radiation conductor (2) and having a variable capacitor to which a control voltage for controlling capacitance is applied from a reception circuit formed outside the base substance (1). In the antenna, a direct-current ground potential of the matching circuit (32) is applied via a transmission line (43) for transmitting an RF signal output from the matching circuit (32) to the reception circuit.
IPC 8 full level
H01Q 1/36 (2006.01); H01Q 1/22 (2006.01); H01Q 23/00 (2006.01)
CPC (source: EP)
H01Q 1/2283 (2013.01); H01Q 1/362 (2013.01); H01Q 23/00 (2013.01)
Citation (applicant)
- JP 2007290363 A 20071108 - SEIKO EPSON CORP
- JP H06314982 A 19941108 - KENWOOD CORP
Citation (search report)
- [XY] EP 1231674 A2 20020814 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [XY] EP 1471597 A1 20041027 - ALPS ELECTRIC CO LTD [JP]
- [XY] EP 1617564 A1 20060118 - YOKOWO SEISAKUSHO KK [JP]
- [X] JP H10209897 A 19980807 - HARADA IND CO LTD, et al
Designated contracting state (EPC)
DE FR GB IT
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08019387 A 20081105; JP 2007290363 A 20071108