EP 0345454 B1 19931118 - Microstrip array antenna.
Title (en)
Microstrip array antenna.
Title (de)
Streifenleiter Array-Antenne.
Title (fr)
Antenne réseau à microruban.
Publication
Application
Priority
- JP 11636088 A 19880513
- JP 15653088 A 19880624
Abstract (en)
[origin: EP0345454A1] A planar microstrip array antenna with a beam tilt, which comprises a plurality of pairs of circularly polarized wave radiating elements (63a, 63b), the orientation angles of the two radiating elements in each pair being different by a predetermined angle within the plane of the planar antenna. The antenna further comprises a feed line (51) for supplying electric power to the radiating elements (63a, 63b). The feed line is provided with a plurality of pairs of terminal feeding portions (53a, 53b) which diverge corresponding individually to the pairs of circularly polarized wave radiating elements. The paired feeding portions are equal in electrical length. Since the respective orientation angles of the paired radiating elements (63a, 63b) are different, a phase difference is produced between the radiating elements, thus providing a beam tilt. Since no phase shift portion for producing a phase difference is formed between the paired terminal feeding portions (53a, 53b), the configuration of the feed line is simple.
IPC 1-7
IPC 8 full level
H01Q 21/00 (2006.01)
CPC (source: EP KR)
H01Q 1/36 (2013.01 - KR); H01Q 13/00 (2013.01 - KR); H01Q 21/0075 (2013.01 - EP)
Citation (examination)
RTM-RUNDFUNKTECHNISCHE MITTEILUNGEN vol.32,no.2,March/April 1988,pages 83-92,Norderstedt,DE; W.TIPPE: "Flache Gruppenantennen,eine Alternative zur Parabolantenne für den stationären und mobilen DBS-Empfang"
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0345454 A1 19891213; EP 0345454 B1 19931118; CN 1011168 B 19910109; CN 1037803 A 19891206; DE 68910728 D1 19931223; DE 68910728 T2 19940623; KR 890017824 A 19891218; KR 920002227 B1 19920320
DOCDB simple family (application)
EP 89107666 A 19890427; CN 89103173 A 19890512; DE 68910728 T 19890427; KR 890004783 A 19890411