EP 0546803 A1 19930616 - Diversity antenna.
Title (en)
Diversity antenna.
Title (de)
Diversity-Antenne.
Title (fr)
Antenne-diversité.
Publication
Application
Priority
GB 9126240 A 19911211
Abstract (en)
A diversity antenna comprising a single antenna element in the form of a quarter wave monopole 1, together with ganged switch means S1, S2 and S3 for feeding the monopole alternately at one end or the other from a common RF feed point 3. Reference 3 can either be a signal source or receiver input circuitry. The spatial separation of the current peaks when fed from either end is almost a quarter wavelength and the antenna thus acts as a diversity antenna even though it has only a single element. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/15 (2006.01); H01Q 3/00 (2006.01); H01Q 3/24 (2006.01)
CPC (source: EP)
H01Q 3/247 (2013.01)
Citation (search report)
- [X] US 3818480 A 19740618 - WEST R
- [X] GB 2114374 A 19830817 - PLESSEY CO PLC
- [A] GB 2088139 A 19820603 - RCA CORP
- [A] GB 2132417 A 19840704 - TAIYO MUSEN CO LTD
Designated contracting state (EPC)
AT BE DE ES FR GB GR IT NL PT SE
DOCDB simple family (publication)
EP 0546803 A1 19930616; AU 3007692 A 19930617; CA 2085096 A1 19930612; CN 1077314 A 19931013; GB 2262414 A 19930616; GB 9126240 D0 19920212; GB 9225608 D0 19930127; JP H05308216 A 19931119
DOCDB simple family (application)
EP 92311184 A 19921208; AU 3007692 A 19921210; CA 2085096 A 19921210; CN 92115164 A 19921210; GB 9126240 A 19911211; GB 9225608 A 19921208; JP 35224292 A 19921210