Murad, N.A., Lancaster, M.J., Wang, Yi and Ke, M.L. (2009) Micromachined Rectangular Coaxial Line to Ridge Waveguide Transition. In: Wireless and Microwave Technology Conference, 2009. WAMICON '09. IEEE 10th Annual. IEEE, pp. 1-5. ISBN 9781424445646 (doi:https://doi.org/10.1109/WAMICON.2009.5207269)

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Abstract

This paper discusses a new micromachined rectangular coaxial line to ridge waveguide transition operating in the frequency range from 60 to 90 GHz. The micromachining techniques are used to provide accurate device dimensions for millimeter wave distributed circuits. A 50 Ω coaxial line output is coupled to a relatively high impedance ridge waveguide. A balun (balanced to un-balanced) concept is considered in order to transform TEM mode in the coaxial line to TE mode in the waveguide [4]. The design has been simulated using CST Microwave Studio 3D simulator. The structure is constructed by bonding five layers of gold coated photoresist (SU-8) each 200 microns thick. The experimental result shows a good wideband response with return loss below - 19dB between 60 GHz to 90 GHz. The measurements show a 1 dB insertion loss and the S parameter response giving a good agreement with the simulation result.

Item Type:	Conference Proceedings
Title of Proceedings:	Wireless and Microwave Technology Conference, 2009. WAMICON '09. IEEE 10th Annual
Additional Information:	[1] This paper was first presented at the 2009 IEEE 10th Annual Wireless and Microwave Technology Conference (WAMICON 2009), held from 20-21 April 2009 in Clearwater, Florida. [2] ISBN: 9781424445646 (print); 9781424445653 (E-ISBN).
Uncontrolled Keywords:	micromachining, waveguide, rectangular coaxial line
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments:	School of Engineering > Mobile & Wireless Communications Research Laboratory
Related URLs:	Publisher
Last Modified:	14 Oct 2016 09:24
URI:	http://gala.gre.ac.uk/id/eprint/9741

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