作者: Sato Keiichiro
DOI:
关键词: Radio frequency 、 Signal 、 Fixed frequency 、 Block (telecommunications) 、 Frequency conversion 、 Electrical engineering 、 Channel (broadcasting) 、 Low noise 、 Intermediate frequency 、 Physics
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