EP 0538485 B1 19970122 - ANTENNA AND SMALL PORTABLE RADIO DEVICE
Title (en)
ANTENNA AND SMALL PORTABLE RADIO DEVICE
Title (de)
ANTENNE UND KLEINES, TRAGBARES FUNKGERÄT
Title (fr)
ANTENNE ET PETIT APPAREIL RADIO PORTATIF
Publication
Application
Priority
- JP 9200581 W 19920506
- JP 10424591 A 19910509
- JP 25377391 A 19911001
Abstract (en)
[origin: WO9220117A1] An antenna which can provide a radio device stable and highly sensitive irrespective of its attitude or its carried direction and of the effect of the proximity to a human body when it is carried with the human body. When the radio device having this antenna is not carried with a human body, regardless of the plane of polarization of an electromagnetic wave, i.e., even in a place where the plane of polarization under multipath distorsion and fading is always changed, the radio device has a stable sensitivity characteristic. Also, the antenna circuit achieving these characteristics requires no additional element for matching, and has a remarkable effect on reducing the size of a radio device.
IPC 1-7
IPC 8 full level
CPC (source: EP)
H01Q 1/273 (2013.01); H01Q 7/00 (2013.01)
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
WO 9220117 A1 19921112; DE 69216983 D1 19970306; EP 0538485 A1 19930428; EP 0538485 A4 19940119; EP 0538485 B1 19970122; HK 1000299 A1 19980220
DOCDB simple family (application)
JP 9200581 W 19920506; DE 69216983 T 19920506; EP 92909642 A 19920506; HK 97101837 A 19970925