Paper • The following article is Open access

Ultra-wideband BWO with waveguide loaded grating

, , , , , , and

Published under licence by IOP Publishing Ltd
, , Citation Shaojie Chang et al 2023 J. Phys.: Conf. Ser. 2478 062037 DOI 10.1088/1742-6596/2478/6/062037

Download Article PDF

Article metrics

26 Total downloads

Share this article

Author e-mails

hu_m@uestc.edu.cn

Author affiliations

1 Terahertz Science and Technology Research Center, University of Electronic Science and Technology of China, Chengdu 610054, China

2 Key Laboratory of Terahertz Technology, Ministry of Education, Chengdu 610054, China

3 National Key Laboratory of Science and Technology on Vacuum Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China

4 The Institute of Anhui Huadong photoelectric Technology, Wuhu, Anhui, 241002, China

Buy this article in print

Journal RSS
Sign up for new issue notifications
1742-6596/2478/6/062037

Abstract

This paper presents a solution for a tunable broadband terahertz radiation source, which can be realized by a newly designed BWO (Backward Wave Oscillator) using slow-wave structure with dual waveguide-loaded gratings. Gratings in two rows of the same height operate in different frequency ranges. Additionally, the signal-to-noise ratio within the operating frequency has been dramatically improved by placing a lossy material at the end of the waveguide. The operating frequency of the double gratings alternate from 185.63 GHz to 239.6 GHz and 244.08 GHz to 291.93 GHz accordingly. Ultimately, the relative bandwidth of the whole device reaches 41.7%.

Export citation and abstract BibTeX RIS

Previous article in issue
Next article in issue

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

Please wait… references are loading.
10.1088/1742-6596/2478/6/062037