Title :
Highly Sensitive Power Independent Frequency Measurement System
Author_Institution :
Dept. of Electr. Eng., Islamic Azad Univ., Isfahan, Iran
Abstract :
A broadband frequency measurement system capable of measuring both frequency and amplitude of an RF signal with -31 dBm sensitivity and 100 MHz accuracy over 40 MHz to 40 GHz range is practically demonstrated. The amplitude independence was achieved via employing two orthogonal measurements and the high sensitivity was obtained by utilization of the lock-in amplification technique.
Keywords :
amplitude estimation; frequency measurement; microwave measurement; microwave photonics; RF signal amplitude measurement; RF signal frequency measurement; broadband frequency measurement system; frequency 100 MHz; frequency 40 MHz to 40 GHz; lock-in amplification technique; orthogonal measurement; Frequency measurement; Harmonic analysis; Power measurement; Radio frequency; Sensitivity; Photonic circuits; radar;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2015.2479839
