DocumentCode
47770
Title
G-Band Micro-Fabricated Frequency-Steered Arrays With 2 
/GHz Beam Steering
Author
Ranzani, Leonardo ; Kuester, D. ; Vanhille, Kenneth J. ; Boryssenko, Anatoliy ; Grossman, Erich ; Popovic, Zoya
Author_Institution
Dept. of Electr. & Comput. Eng., Univ. of Colorado, Boulder, CO, USA
Volume
3
Issue
5
fYear
2013
fDate
Sept. 2013
Firstpage
566
Lastpage
573
Abstract
In this paper, we describe micro-fabricated frequency-scanned slot waveguide arrays operating between 130 and 180 GHz for planetary landing radar. The group delay dispersion of the feed line is increased by corrugating the bottom rectangular waveguide wall. Both 16-element and 32-element linear arrays are fed by micro-coaxial corporate feed networks to narrow the beam in the non-scanning direction. Two-dimensional (2-D) antenna arrays and feed networks are photo-lithographically fabricated using a sequential metal deposition process. The 16-by-21 array demonstrates a 6° beamwidth and 2° /GHz steering over a 40° scan angle.
Keywords
beam steering; linear antenna arrays; microfabrication; photolithography; radar antennas; rectangular waveguides; slot antenna arrays; 16-element linear arrays; 32-element linear arrays; G-band microfabricated frequency-steered arrays; beam steering; bottom rectangular waveguide wall; feed line; frequency 130 GHz to 180 GHz; group delay dispersion; micro-coaxial corporate feed networks; microfabricated frequency-scanned slot waveguide arrays; photolithographically fabricated feed networks; planetary landing radar; sequential metal deposition process; two-dimensional antenna arrays; Antenna arrays; Antenna measurements; Antenna radiation patterns; Bandwidth; Feeds; Gain; Standards; $G$
fLanguage
English
Journal_Title
Terahertz Science and Technology, IEEE Transactions on
Publisher
ieee
ISSN
2156-342X
Type
jour
DOI
10.1109/TTHZ.2013.2271381
Filename
6562815
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