Patent ID: 7714564
Filing Date: 2010-05-11
Classification: G01R

Abstract:
1. A signal analyzer comprising: a RF step attenuator, receiving a RF signal, generating an attenuator signal; a mixer, receiving the attenuator signal and a LO signal, generating a mixer signal; an IF Resolution Bandwidth Filter, receiving the mixer signal, generating an IF signal; an IF Log Amplifier, receiving the IF signal, generating an amplifier signal; an Envelope Detector, receiving the amplifier signal, generating an envelope signal; a gate controller, receiving the envelope signal and a Ready signal, generating a GC output signal and a GC control signal; a Video Bandwidth Filter, receiving the GC output signal, generating a video signal; a Peak Sample Detector receiving the video signal, generating a peak signal; an A/D Converter receiving the peak signal, generating an A/D signal; Display logic receiving the A/D signal, generating a Reset signal and a Display signal; a display receiving the display signal; a scan generator, bidirectionally connected to the gate controller, receiving the GC control signal and outputting the Ready signal, having an scan signal; and a local oscillator, receiving the scan signal, generating the LO signal.