Version 1
: Received: 15 October 2024 / Approved: 16 October 2024 / Online: 16 October 2024 (10:49:41 CEST)
How to cite:
Blatnik, A.; Zmrzlak, L.; Batagelj, B. Radio Frontends for Frequency Agile Microwave Photonic Radars. Preprints2024, 2024101269. https://doi.org/10.20944/preprints202410.1269.v1
Blatnik, A.; Zmrzlak, L.; Batagelj, B. Radio Frontends for Frequency Agile Microwave Photonic Radars. Preprints 2024, 2024101269. https://doi.org/10.20944/preprints202410.1269.v1
Blatnik, A.; Zmrzlak, L.; Batagelj, B. Radio Frontends for Frequency Agile Microwave Photonic Radars. Preprints2024, 2024101269. https://doi.org/10.20944/preprints202410.1269.v1
APA Style
Blatnik, A., Zmrzlak, L., & Batagelj, B. (2024). Radio Frontends for Frequency Agile Microwave Photonic Radars. Preprints. https://doi.org/10.20944/preprints202410.1269.v1
Chicago/Turabian Style
Blatnik, A., Luka Zmrzlak and Boštjan Batagelj. 2024 "Radio Frontends for Frequency Agile Microwave Photonic Radars" Preprints. https://doi.org/10.20944/preprints202410.1269.v1
Abstract
With a recent advance in photonic integrated circuits (PIC), a new field of frequency agile coherent radar systems is being thoroughly researched. In contrast to the traditional all-electronics radiofrequency (RF) radar techniques, a fully photonics-based system does not suffer from bandwidth limitation and noise degradation when switching from S to X or K-band and can achieve excellent phase noise even at frequencies exceeding 20 GHz. However, recent state-of-the-art PICs still exhibit high processing losses in the optical domain, which must be addressed in the electrical part of the RF domain. This study presents a comprehensive analysis of the challenges in designing RF front-end amplifier chains for microwave photonic radars, particularly in maintaining stability, minimizing noise, and reducing intermodulation distortion. Furthermore, a comprehensive demonstration of the RF front-end, encompassing both the optical generation of RF signals and experimental measurements of a rotor blade's Doppler fingerprint to validate the system's performance is presented.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
