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Micromachined travelling wave slotted waveguide antenna array for beam-scanning applications

Micromachined travelling wave slotted waveguide antenna array for beam-scanning applications

Mahmud, Rashad, He, Tianhao, Lancaster, Micahel, Wang, Yi and Shang, Xiaobang (2014) Micromachined travelling wave slotted waveguide antenna array for beam-scanning applications. In: 2014 Loughborough Antennas and Propagation Conference (LAPC). IEEE. ISBN 978-1-4799-3662-5

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Abstract

A design of travelling wave slotted waveguide antenna array based on micromachined layers operated in the WR-03 frequency band (220-325 GHz) is demonstrated in this paper. The antenna structure remains simple and is designed to be fabricated by using thick SU-8 photoresist technology. Instead of a matched load or a back-short at the termination of the waveguide, a novel H-plane bend followed by a radiating slot is integrated in order to minimise the power reflected to the input port and achieve the travelling wave operation. It also enables broadening of the bandwidth, and keeps the high gain value of the antenna. The 8-slot linear array antenna has shown a simulated gain of 13.5 dBi in the E-plane at 300 GHz, and 30% fractional bandwidth from 240 GHz to 325 GHz. The main beam scans in the H-plane, from -25° to -6°over the bandwidth. The scanning feature is attractive for radar applications.

Item Type: Conference Proceedings
Title of Proceedings: 2014 Loughborough Antennas and Propagation Conference (LAPC)
Additional Information: [1] The 2014 Loughborough Antennas and Propagation Conference (LAPC) took place 10-11 November 2014 in Burleigh Court International Conference Centre, Loughborough University, United Kingdom.
Uncontrolled Keywords: beam scanning, travelling array, millimeter-wave waveguides, H-bend radiating slos
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Related URLs:
Last Modified: 03 Jan 2017 15:36
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/12316

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