SATELLITE TRANSCEIVER

A transceiver (2) receives linearly polarized signals (4) from two geostationary satellites (6). The transceiver (2) includes a first and second waveguide (8) to form two receiving beam patterns with a maximum gain in angular directions different from each other. At one end of each waveguide (8), tw...

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Bibliographic Details
Main Author Grotz, Joel
Format Patent
LanguageChinese
English
Published 25.06.2010
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
BROADCAST COMMUNICATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:A transceiver (2) receives linearly polarized signals (4) from two geostationary satellites (6). The transceiver (2) includes a first and second waveguide (8) to form two receiving beam patterns with a maximum gain in angular directions different from each other. At one end of each waveguide (8), two receiving elements (12) orthogonal to each other are provided. Four converting units (14) convert, using a common local oscillator (16), the carrier frequency of the four signal components received from the two pairs of receiving elements (12) into an intermediate frequency. A combining unit (20) linearly combines the converted signal components, based on weights representing phase shifting and/or amplification of signal components. A weight input unit (18) receives the weights to be used in the combining unit (20).
Bibliography:Application Number: HK20100103061