L-BAND SATELLITE RECEIVER

摘要

a L-band receiver antenna 10; a low-noise amplifier 20; first and second amplifier 30 and 31 for amplifying a signal passed through the low-noise amplifier 20; a band pass filter 40 for filtering the whole band of an input signal; a intermediate frequency section 500 for outputting an intermediate frequency by a single synthesizer 52; a costas loop section 700 including a temperature compensating voltage-controlled oscillator 100 for oscillating a reference frequency used in the single synthesizer 52, and a reset circuit 110 for setting an initial value to the temperature compensating voltage-controlled oscillator 100; and a sampling section 80 for sampling a demodulated data.