NDLI: Flexible rectangular waveguide based on cylindrical contactless flange

Content Provider	IET Digital Library
Author	Sun, Dongquan Chen, Zhenhua Yao, Changfei Xu, Jinping
Abstract	Contactless waveguide flange is a novel structure to prevent leakage of electromagnetic wave when it propagates across the waveguide flange. The main advantage of contactless waveguide flange is electrical contact of the connected waveguides is not required as long as the gap between the adjacent flanges does not exceed the maximum permitted distance. Therefore, relative motivation or rotation of the contactless connected waveguides is possible. The contactless waveguide flanges have been reported are all planar. A cylindrical contactless flange is first proposed. Then, a novel flexible rectangular waveguide is proposed based on it. A Ka-band prototype is successfully designed and manufactured. The prototype consists of two bendable contactless flange joints. The maximum bending angle of each joint is limited to ±8° to maintain the return loss performance. The number of joints can be easily increased if larger bending angles are needed. The insertion loss and return loss at different bending angles are measured. The measured insertion loss is better than 0.7 dB from 26 to 37 GHz, and is better than 1.8 dB from 37 to 40 GHz. The measured return loss is 15 dB except frequencies around 37.5 and 40 GHz.
Starting Page	2042
Ending Page	2044
Page Count	3
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 25, Dec (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/25
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2016.3536
Journal	Electronics Letters
Publisher Date	2016-11-17
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bendable Contactless Flange Joints Bending Angles Contactless Waveguide Flange Cylindrical Contactless Flange Electromagnetic Wave Leakage Prevention Flanges Flexible Rectangular Waveguide Frequency 26 GHz to 40 GHz Insertion Loss Ka-band Prototype Loss 15 DB Rectangular Waveguide Return Loss Performance Waveguide And Microwave Transmission Line
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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