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Photonics 2018, 5(2), 6; https://doi.org/10.3390/photonics5020006

Photonics-Based Microwave Image-Reject Mixer

The Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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Received: 12 February 2018 / Revised: 19 March 2018 / Accepted: 22 March 2018 / Published: 26 March 2018
(This article belongs to the Special Issue Microwave Photonics 2017)
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Abstract

Recent developments in photonics-based microwave image-reject mixers (IRMs) are reviewed with an emphasis on the pre-filtering method, which applies an optical or electrical filter to remove the undesired image, and the phase cancellation method, which is realized by introducing an additional phase to the converted image and cancelling it through coherent combination without phase shift. Applications of photonics-based microwave IRM in electronic warfare, radar systems and satellite payloads are described. The inherent challenges of implementing photonics-based microwave IRM to meet specific requirements of the radio frequency (RF) system are discussed. Developmental trends of the photonics-based microwave IRM are also discussed. View Full-Text
Keywords: microwave photonics; frequency conversion; image reject; photonic signal processing microwave photonics; frequency conversion; image reject; photonic signal processing
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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. (CC BY 4.0).
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Zhu, D.; Pan, S. Photonics-Based Microwave Image-Reject Mixer. Photonics 2018, 5, 6.

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