A sub-millimeterwave micromachined frequency beam-steering antenna array

Author

Jam, Armin ; Vahidpour, Mehrnoosh ; East, Jack ; Sarabandi, Kamal

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA

fYear

2014

fDate

1-6 June 2014

Firstpage

1

Lastpage

3

Abstract

This paper describes a novel travelling-wave frequency beam-scanning array antenna operating at Y-band. The proposed antenna is composed of over 40 cavity-backed patch arrays as the radiating elements, with a total of 588 patch elements. The array generates a very narrow beam (HPBW of less than 2.5°) at the broadside of the antenna with ±25° steering capability. A prototype of the proposed antenna is fabricated using silicon micromachining with high level of accuracy and low mass and cost. To characterize the micromachined antenna, a novel waveguide-probe near-field measurement setup is proposed and good agreement between the measurement and the full-wave simulation results of the antenna is shown.

Keywords

beam steering; micromachining; microstrip antenna arrays; millimetre wave antenna arrays; cavity-backed patch arrays; patch elements; radiating elements; silicon micromachining; steering capability; sub-millimeterwave micromachined frequency beam-steering antenna array; travelling-wave frequency beam-scanning array antenna; waveguide-probe near-field measurement setup; Antenna measurements; Frequency measurement; Gold; Phased arrays; Position measurement; Probes; Phased arrays; beam-steering; patch arrays; silicon micromachining; sub-millimeterwave; terahertz; travelling-wave antennas; waveguide probe;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (IMS), 2014 IEEE MTT-S International

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/MWSYM.2014.6848619

Filename

6848619