PIER C
 
Progress In Electromagnetics Research C
ISSN: 1937-8718
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2 TO 4 GHZ FREQUENCY DISCRIMINATOR FOR RF FRONT-END INSTANTANEOUS FREQUENCY MEASUREMENT RECEIVERS

By H. Deeb, K. Yazbek, and A. Malki

Full Article PDF (497 KB)

Abstract:
The instantaneous measurement of RF & microwave frequencies is widely used in electronic warfare (EW) for the determination of unknown signals over a broad frequency band. This paper presents an enhanced frequency measurement accuracy using three stages of novel RF frequency discriminator (FD) for RF front-end IFM Receivers. The appropriate structure of the designed frequency discriminator is implemented using a conventional PCB fabrication process. The frequency discriminator consists of two different hybrid layouts and one Wilkinson power divider, and all these components are implemented in microstrip technology, which is particularly important due to lower cost and easy integration into the PCB. To demonstrate the feasibility of the proposed structure, an RF-FE instantaneous frequency measurement (IFM) receiver has been realized based on 3-stage RF frequency discriminator. Simulation and measurement results have shown a frequency measurement accuracy less than 1 MHz (RMS) over the entire S-band.

Citation:
H. Deeb, K. Yazbek, and A. Malki, "2 to 4 GHz Frequency Discriminator for RF Front-End Instantaneous Frequency Measurement Receivers," Progress In Electromagnetics Research C, Vol. 73, 27-36, 2017.
doi:10.2528/PIERC17013004

References:
1. James, B. and Y. Tsui, Microwave Receivers with Electronic Warfare Applications, John Wiley & Sons, New York, 1986.

2. Collin, R. E., Foundations for Microwave Engineering, 2nd Ed., 442-450, McGraw-Hill, New York, 1992.

3. Wong, M. F., V. F. Hanna, O. Picon, and H. Baudrand, "Analysis and design of slot-coupled directional couplers between double-sided substrate microstrip lines," IEEE Transactions on Microwave Theory and Techniques, Vol. 29, No. 12, 2123-2129, Dec. 1991.
doi:10.1109/22.106554

4. Cristal, E. G. and L. Young, "Theory and tables of optimum symmetrical TEM-mode coupled-transmission-line directional couplers," IEEE Transactions on Microwave Theory and Techniques, Vol. 13, No. 5, 544-558, Sep. 1965.
doi:10.1109/TMTT.1965.1126050

5. Liang, C. H., W. S. Chang, and C. Y. Chang, "Enhanced coupling structures for tight couplers and wideband filters," IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 3, 574-583, Mar. 2011.
doi:10.1109/TMTT.2010.2094202


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