G-band bowtie dipole antenna

Emhemmed, Adel S. and Elgaid, Khaled ORCID: https://orcid.org/0000-0003-3265-1097 2009. G-band bowtie dipole antenna. Presented at: 3rd European Conference on Antennas and Propagation 2009, Berlin, Germany, 23-27 March 2009. Proceedings of the 2009 3rd European Conference on Antennas and Propagation. IEEE, -.

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Abstract

In this paper we propose a 3D micromachined 210 GHz elevated bowtie dipole antenna fed by coplanar waveguide. The antenna is designed for MMICs applications at G-band (140 GHz to 220 GHz). The antenna topology effectively creates a low dielectric substrate and undesired substrate effects can be eliminated, since the antenna substrate is essentially air (the lowest possible dielectric constant) and can be used on most substrates to monolithically integrate. The proposed antenna is composed of coplanar waveguide (CPW) feed line, air-bridges, a feeding post, supporting posts, and a radiator. The elevated antenna is fed with a gold feeding post connected to a CPW line on top of SI-GaAs substrate. The antenna fabrication is based on a standard III-V MMIC airbridge technology. The measured bandwidth is about 8.6 GHz (For return loss<10 dB) from 204 GHz to 212.6 GHz.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Engineering
Publisher:	IEEE
ISBN:	978-1-4244-4753-4
Last Modified:	04 Nov 2022 12:18
URI:	https://orca.cardiff.ac.uk/id/eprint/122551

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