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- Unclassified, Unlimited, Publicly available.
- In mobile and satellite communications there is a need for low cost and low profile antennas which have a toroidal pattern. Antennas that have been developed for mobile communications include a L-Band electronically steered stripline phased array, a Ka-Band mechanically steered elliptical reflector antenna and a Ka-Band printed dipole. In addition, a L-Band mechanically steered microstrip array, a L-Band microstrip phased array tracking antenna for mounting on a car roof and an X-Band radial line slotted waveguide antenna have been demonstrated. In the above electronically scanned printed arrays, the individual element radiates normally to the plane of the array and hence require a phase shifter to scan the beam towards the horizon. Scanning in the azimuth is by mechanical or electronic steering. An alternate approach is to mount microstrip patch radiators on the surface of a cone to achieve the required elevation angle. The array then scans in the azimuth by beam switching.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19940025693.
Accession ID: 94N30198.
1994 IEEE AP-S International Symposium and URSI Radio Science Meeting; 19-24 Jun. 1994; Seattle, WA; United States.
- No Copyright.
View MARC record | catkey: 15659172