MULTI-USER SATELLITE RECEIVING SYSTEM AND METHOD THEREOF

摘要

An integrated multi-user satellite receiver includes: a single-chip, and the single-chip includes: a first synthesizer for generating a first oscillating signal having a first frequency; a first frequency multiplier for generating a second oscillating signal having a second frequency according to the first oscillating signal; a second synthesizer for generating a third oscillating signal having a third frequency; and a second frequency multiplier for generating a fourth oscillating signal having a fourth frequency according to the third oscillating signal; wherein the single-chip generates a first down-converted signal according to a first satellite signal and the second oscillating signal, generates a second down-converted signal according to the first satellite signal and the fourth oscillating signal, generates a third down-converted signal according to a second satellite signal and the second oscillating signal, and generates a fourth down-converted signal according to the second satellite signal and the fourth oscillating signal.

主权项

1. A signal receiver comprising
a first synthesizer configured to generate a first oscillating signal having a first frequency; a first frequency multiplier coupled to the first synthesizer, wherein the first frequency multiplier is configured to generate a second oscillating signal, having a second frequency greater than the first frequency, according to the first oscillating signal; a second synthesizer configured to generate a third oscillating signal having a third frequency; a second frequency multiplier coupled to the second synthesizer, wherein the second frequency multiplier is configured to generate a fourth oscillating signal, having a fourth frequency greater than the third frequency, according to the third oscillating signal; a first mixer configured to apply the second oscillating signal to a first input signal to be down-converted into a first mixed signal; a second mixer configured to apply the fourth oscillating signal to a second input signal to be down-converted into a second mixed signal; a third mixer configured to apply the second oscillating signal to a third input signal to be down-converted into a third mixed signal; and a fourth mixer configured to apply the fourth oscillating signal to a fourth input signal to be down-converted into a fourth mixed signal, wherein the first and second synthesizers, first and second frequency multipliers and first, second, third and fourth mixers are incorporated in a single chip.