EP 1388908 A1 20040211 - Converter for receiving satellite broadcast
Title (en)
Converter for receiving satellite broadcast
Title (de)
Konverter zum Empfang von Satellitenrundfunk
Title (fr)
Convertisseur de réception pour radiodiffusion par satellite
Publication
Application
Priority
JP 2002227406 A 20020805
Abstract (en)
A converter for receiving a satellite broadcast has a waveguide (1) for advancing a radio wave entering a waveguide tube as first and second linearly polarized waves perpendicular to each other, a first probe (9) and a second probe (6) projected into the tube of this waveguide and sequentially arranged along the advancing direction of the radio wave, a first short-circuited terminal (8) for reflecting the first linearly polarized wave and detecting the first linearly polarized wave by the first probe, a second short-circuited terminal (7) for reflecting the second linearly polarized wave and detecting the second linearly polarized wave by the second probe, and a reflecting pattern (5) (third short-circuited terminal) arranged between these first and second short-circuited terminals. When the guide wavelength of the used radio wave is set to lambda , the distance between the first short-circuited terminal and the second short-circuited terminal is set to about lambda /2, and the distance between the first short-circuited terminal and the reflecting pattern, and the distance between the reflecting pattern and the second short-circuited terminal are respectively set to about lambda /4. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/161 (2006.01); H01P 5/103 (2006.01); H01P 5/107 (2006.01); H01Q 13/02 (2006.01)
CPC (source: EP)
H01P 1/161 (2013.01); H01P 5/107 (2013.01)
Citation (search report)
- [XY] US 2985852 A 19610523 - EDWARD COWCHER, et al
- [Y] US 5585768 A 19961217 - WEI SHIH-KUEI [TW]
- [A] EP 0552944 A1 19930728 - SHARP KK [JP]
- [A] GB 2334153 A 19990811 - ALPS ELECTRIC CO LTD [JP]
- [A] EP 1091443 A2 20010411 - ALPS ELECTRIC CO LTD [JP]
- [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 437 (E - 0980) 19 September 1990 (1990-09-19)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1388908 A1 20040211; CN 1258267 C 20060531; CN 1481092 A 20040310; JP 2004072319 A 20040304; JP 4027175 B2 20071226
DOCDB simple family (application)
EP 03254614 A 20030724; CN 03152589 A 20030805; JP 2002227406 A 20020805