EP 0981840 A1 20000301 - HIGH IMPEDANCE TYPE HIGH FREQUENCY ANTENNA
Title (en)
HIGH IMPEDANCE TYPE HIGH FREQUENCY ANTENNA
Title (de)
HOCHFREQUENZANTENNE MIT HOHER IMPEDANZ
Title (fr)
ANTENNE HAUTE FREQUENCE DE TYPE A IMPEDANCE ELEVEE
Publication
Application
Priority
- KR 9700096 W 19970527
- KR 19970014726 A 19970421
Abstract (en)
[origin: WO9848478A1] A high impedance type high frequency antenna by which the antenna is not influenced by an external factor when a human body or the like approaches the antenna by enabling a high impedance by decreasing a reactance component and increasing a resistance component, whereby it is possible to fabricate a compact size product. The antenna inludes an RF module having an input and output capacity of 50 OMEGA , and a matching circuit connected between the antenna and the RF module for outputting 50 OMEGA of an impedance and having a smith chart at a 1/4 lambda helical portion so that a 1/2 lambda monopole antenna is matched with a 50 OMEGA RF module.
IPC 1-7
IPC 8 full level
H01Q 1/24 (2006.01); H01Q 9/30 (2006.01); H04B 1/18 (2006.01)
CPC (source: EP)
H01Q 1/242 (2013.01); H01Q 9/30 (2013.01); H04B 1/18 (2013.01)
Citation (search report)
See references of WO 9848478A1
Designated contracting state (EPC)
DE ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9848478 A1 19981029; AU 3049197 A 19981113; BR 9715003 A 20010918; CN 1249071 A 20000329; EP 0981840 A1 20000301; IL 131065 A0 20010128; JP 2000512118 A 20000912; KR 19980077560 A 19981116
DOCDB simple family (application)
KR 9700096 W 19970527; AU 3049197 A 19970527; BR 9715003 A 19970527; CN 97181995 A 19970527; EP 97925312 A 19970527; IL 13106597 A 19970527; JP 54549698 A 19970527; KR 19970014726 A 19970421