Title:
BIFOCAL PLANAR ANTENNA
Document Type and Number:
WIPO Patent Application WO2000021154
Kind Code:
A3
Abstract:
The invention relates to a microwave antenna for simultaneously receiving the radiation fields of N>/=2 satellites which are positioned in orbit, displaced in relation to one another by given azimuth angles phi . Said microwave antenna has radiating elements which are divided into N groups (1a, 1b; 1a', 1b'; 1a'', 1b'', 1c''). Said groups (1a, 1b; 1a', 1b'; 1a'', 1b'', 1c'') are each connected to a feeding point via a line distribution system (5a). Each of the N groups (1a, 1b; 1a', 1b'; 1a'', 1b'', 1c'') of radiating elements is arranged in a respective plane and the surface normals (FN) of the planes point in the direction of the corresponding satellites once the microwave antenna has been directed.
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Inventors:
GERHARD WALTER (DE)
Application Number:
PCT/EP1999/005400
Publication Date:
September 26, 2002
Filing Date:
July 28, 1999
Export Citation:
Assignee:
PATES TECH PATENTVERWERTUNG (DE)
GERHARD WALTER (DE)
GERHARD WALTER (DE)
International Classes:
H01Q21/06; H01Q21/20; H01Q21/28; H01Q21/29; H01Q23/00; (IPC1-7): H01Q21/29
Foreign References:
| EP0920075A1 | 1999-06-02 | |||
| EP0825670A1 | 1998-02-25 | |||
| EP0345454A1 | 1989-12-13 | |||
| DE19633147A1 | 1998-02-19 | |||
| DE19712510A1 | 1999-01-07 |
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