Title:
DUAL-BAND MICROSTRIP ANTENNA ARRAY
Document Type and Number:
WIPO Patent Application WO1999059223
Kind Code:
A3
Abstract:
A dual-band antenna array (50) for use in a base station for mobile telephone communications consists of a first linear array of microstrip or patch antennas (52) for use over the GSM band and a second linear array of crossed dipoles (56) for use over the PCN band. The PCN antennas are at half the spacings of the GSM antennas. Alternate ones of the PCN crossed dipole antennas are located above respective GSM patch antennas, and a conductive plate or sheet (66) between them functions both as a parasitic element for the microstrip antenna and as a reflector for the crossed dipole antenna.
Inventors:
ARCHER MARTIN JOSEPH (GB)
COLLINS BRIAN STUART (GB)
HUANG TAO (GB)
LIU ZIDONG (GB)
COLLINS BRIAN STUART (GB)
HUANG TAO (GB)
LIU ZIDONG (GB)
Application Number:
PCT/GB1999/001480
Publication Date:
January 20, 2000
Filing Date:
May 11, 1999
Export Citation:
Assignee:
CSA LIMITED (GB)
ARCHER MARTIN JOSEPH (GB)
COLLINS BRIAN STUART (GB)
HUANG TAO (GB)
LIU ZIDONG (GB)
ARCHER MARTIN JOSEPH (GB)
COLLINS BRIAN STUART (GB)
HUANG TAO (GB)
LIU ZIDONG (GB)
International Classes:
H01Q1/24; H01Q5/00; H01Q5/378; H01Q5/42; H01Q9/04; H01Q21/30; (IPC1-7): H01Q21/30; H01Q21/06; H01Q9/04; H01Q5/00
Domestic Patent References:
| WO1999017396A1 | 1999-04-08 |
Foreign References:
| DE2645058A1 | 1978-04-13 | |||
| EP0372451A1 | 1990-06-13 | |||
| US5220334A | 1993-06-15 | |||
| US5444452A | 1995-08-22 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 008, no. 099 (E - 243) 10 May 1984 (1984-05-10)
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 02 31 March 1995 (1995-03-31)
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 02 31 March 1995 (1995-03-31)
Download PDF: