Invited paper from Dr Chao Wang on Microwave Photonics research

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Dr Chao Wang, Senior Lecturer in Electronic Systems at the School of Engineering has been invited by the journal IEEE Journal of Microwaves to write jointly a review paper, entitled “Photonic generation of wideband chirped microwave waveforms”.

Chirped microwave waveforms have been widely used in modern radar systems to improve the range resolution while relieving its constraint on peak power. A real challenge in microwave research is to generate high-frequency and large-bandwidth chirped microwave signals using existing electronic signal generators, the so-called electronic bottleneck. Dr Wang’s research has been focused on microwave photonics, which is an inter-disciplinary area that studies the interaction between the Lightwave and microwave. Over the past ten years, Dr Wang has investigated the use of novel photonic approaches for microwave waveform generation, to take advantage of the ultra-wide bandwidth offered by photonics. In this invited article recently published in IEEE Journal of Microwaves, a comprehensive overview on photonic-enabled generation of wideband microwave waveforms has been provided.

This invited paper is an international collaborative effort between Hanzhou Dianzi University in China, University of Kent, and University of Ottawa in Canada. This research work is partially supported by an EPSRC research grant “Low-Profile Ultra-Wideband Wide-Scanning Multi-Function Beam-Steerable Array Antennas”. Novel microwave photonics approaches are being developed in this project to achieve optical fibre based feeding network for phased array antennas, featuring light-weight, low-loss and compactness.

The full article is available to read on the publisher’s website, here: