LOW-NOISE BLOCK CONVERTER

作者: Sato Keiichiro

DOI:

关键词: Radio frequencySignalFixed frequencyBlock (telecommunications)Frequency conversionElectrical engineeringChannel (broadcasting)Low noiseIntermediate frequencyPhysics

摘要: PROBLEM TO BE SOLVED: To perform frequency conversion from the RF signal of a satellite broadcast reception into first IF and second signal, by removing an image (IF Image) for block whose is performed on signal. SOLUTION: This one cable wide band LNB provided with mixers 103 133 converting channel group intermediate 110, 113, 140 143 predetermined fixed frequency, wherein band-elimination filters 12 14 are installed between so that can be attenuated. COPYRIGHT: (C)2007,JPO&INPIT