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Article: A low cost, high performance, electronically scanned MMW antenna.
- Article from:
- Microwave Journal
- Article date:
- January 1, 1997
- Author:
CopyrightCOPYRIGHT 1997 Horizon House Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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MMW components are compact and well suited for integration into missile seeker heads, smart munitions, automobile collision-avoidance systems and synthetic vision systems. In these applications, low cost, rapid inertialess scanning of the antenna is desirable. Most MMW antennas that operate at frequencies [greater than or equal to]35 GHz use either a [TABULAR DATA FOR TABLE I OMITTED] mechanical scanning approach or phase shifters for electronic steering. Phase shifters that operate at MMW frequencies are costly and introduce considerable RF losses. Mechanically steered antennas contain moving parts, are slow in response, and are sometimes sensitive to shock and vibration. ...