G-band frequency-steering antenna array design and measurements

Author

Cullens, Evan ; Ranzani, Leonardo ; Grossman, Erich ; Popovic, Zoya

Author_Institution

Dept. of Electr., Comput. & Energy Eng., Univ. of Colorado, Boulder, CO, USA

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

2

Abstract

This paper discusses design of a micro-fabricated frequency-steered waveguide slot array and its radiation pattern measurements over a 130GHz to 180GHz frequency range. The array is designed in a reduced-height WR-5 waveguide, and the slot spacing, size and position are optimized using HFSS. The array was fabricated in the PolyStrata™ process by Nuvotronics, LLC. The measured return loss of the 20-element travelling-wave array is below 12dB from 130 to 180GHz. The radiation patterns agree well with simulations are exhibit about 1degree/GHz of scanning. The measurements were performed in a calibrated quasi-optical setup.

Keywords

antenna radiation patterns; millimetre wave antenna arrays; millimetre wave measurement; slot antenna arrays; waveguide antenna arrays; 20-element travelling-wave array; G-band frequency-steering antenna array design; HFSS; PolyStrata process; antenna radiation pattern measurements; frequency 130 GHz to 180 GHz; microfabricated frequency-steered waveguide slot antenna array; quasi-optical setup; reduced-height WR-5 waveguide; slot spacing; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Feeds; Frequency measurement; Loss measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050236

Filename

6050236