Micromachined periodic surfaces for planar terahertz antennas

Author

Konstantinidis, Konstantinos ; Feresidis, Alexandros P. ; Lancaster, Michael J.

Author_Institution

Sch. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK

fYear

2014

fDate

6-11 April 2014

Firstpage

215

Lastpage

219

Abstract

In this paper we present micromachined periodic partially reflective surfaces (PRS) employed in the design of planar Fabry-Perot type antenna for terahertz frequencies. The fabrication process is based on micromachining and metalizing multiple SU-8 photoresist layers. A resonant cavity is formed by placing the PRS over a single waveguide-fed aperture in a metallic ground at a distance of about half wavelength. A square aperture array within a metalized SU-8 layer is used as the PRS, and the dimensions are optimized using full wave simulations (CST Microwave Studio^TM). A high gain antenna operating approximately at 284 GHz has been designed and a prototype has been fabricated.

Keywords

aperture antennas; cavity resonators; micromachining; millimetre wave antenna arrays; periodic structures; photoresists; planar antenna arrays; terahertz wave devices; CST microwave studio; PRS; frequency 284 GHz; high gain antenna; metallic ground; micromachined periodic partially reflective surfaces; micromachining fabrication process; multiple SU-8 photoresist layers metalization; planar Fabry-Perot antenna; prototype antenna fabrication; resonant cavity; single waveguide-fed aperture; square aperture array; terahertz frequencies; wave simulations; Antenna measurements; Antenna radiation patterns; Apertures; Fabrication; Frequency measurement; Fabry-Perot cavity; Periodic structures; THz high gain antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2014 8th European Conference on

Conference_Location

The Hague

Type

conf

DOI

10.1109/EuCAP.2014.6901729

Filename

6901729