›› 2013, Vol. 26 ›› Issue (6): 37-.

• Articles • Previous Articles     Next Articles

Design of a Novel Phase-Detector for IFM Application

LIU Xing,ZHAO Peng,WANG Zhiqiang   

  1. (Professional Unit 5,The 13th Research Institute,CETC,Shijiazhuang 050051,China)
  • Online:2013-06-15 Published:2013-06-04

Abstract:

The application of log-amplifier AD8309 in Instantaneous Frequency Measurement (IFM) is described.With the phase detector based on AD8309,it successfully applies on the IFM part of an AFC.With an input RF signal frequency 298~318 MHz,a power of -50~+20 dBm,and a modulation pulse of 150 ns,it realizes a precision of 150 kHz with the nicety less than 300 kHz.The phase detector has the advantages of narrow modulation pulse width and wide dynamic range.

Key words: phase-detector;width of pulse modulation;dynamic range

CLC Number: 

  • TN911.8