Abstract
A high-sensitivity, compact-size structure for instantaneous frequency measurement receiver is presented in this paper. The proposed structure utilizes seven small-size, high-performance, microstrip band-stop filters to shape the frequency bandwidth based on the binary division. The three-section Wilkinson power divider is designed to divide the input signal into several paths with good isolation between them. The output of each microstrip filter is divided into two paths, with and without amplification to increase the dynamic range, as much as the amplifier gain. The unknown frequency is reported by a 7-bit binary code which is generated by amplified path for low-power input signal and the other path for high input level. The proposed structure is fabricated on Rogers Ro4003 substrate with 8-mil thickness. Based on the measurement results, the proposed structure has −65-dBm sensitivity with about 70-dB dynamic range of frequency detection. Also, the measured root-mean-square error is less than 35 MHz at the power level of −30 dBm.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Instrumentation and Measurement
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
