Title:
PHASE-SHIFTING SYSTEM AND ANTENNA FIELD COMPRISING SUCH A PHASE-SHIFTING SYSTEM
Document Type and Number:
WIPO Patent Application WO2003063290
Kind Code:
A3
Abstract:
Disclosed is a phase-shifting system (10) which is used particularly for electrically swiveling the direction of beam of an antenna field comprising several radiators with two planes of polarization. The inventive phase-shifting system comprises two jointly changeable phase shifters (10a,b) with microstrip lines (66, 67) associated thereto. The electrical length of each of said phase shifters (10a,b) can be changed by a dielectric (70) which is slidable above the microstrip lines (66, 67). Such a phase-shifting system offers a simplified design and added functional safety by arranging the microstrip lines (66, 67) of both phase shifters (10a,b) in parallel next to each other and by providing a common slidable dielectric (70) in order to change the electrical length of the microstrip lines (66, 67) of both phase shifters (10a,b).
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Inventors:
HEINIGER MARKUS (CH)
SPIRIG EUGEN (CH)
SPIRIG EUGEN (CH)
Application Number:
PCT/CH2003/000053
Publication Date:
November 13, 2003
Filing Date:
January 23, 2003
Export Citation:
Assignee:
HUBER+SUHNER AG (CH)
HEINIGER MARKUS (CH)
SPIRIG EUGEN (CH)
HEINIGER MARKUS (CH)
SPIRIG EUGEN (CH)
International Classes:
H01P1/18; H01Q3/30; H01Q3/32; H01Q21/06; (IPC1-7): H01P1/18
Foreign References:
DE19911905A1 | 1999-10-21 | |||
US3656179A | 1972-04-11 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 25 12 April 2001 (2001-04-12)
GOUKER M A ET AL: "A MICROSTRIP PHASE-TRIM DEVICE USING A DIELECTRIC OVERLAY", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE INC. NEW YORK, US, vol. 42, no. 11, 1 November 1994 (1994-11-01), pages 2023 - 2026, XP000474342, ISSN: 0018-9480
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 24 11 May 2001 (2001-05-11)
GOUKER M A ET AL: "A MICROSTRIP PHASE-TRIM DEVICE USING A DIELECTRIC OVERLAY", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE INC. NEW YORK, US, vol. 42, no. 11, 1 November 1994 (1994-11-01), pages 2023 - 2026, XP000474342, ISSN: 0018-9480
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 24 11 May 2001 (2001-05-11)
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