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ANTENNAS  |
Integrated
Phase Antenna Array with Beam Steering Capabilities
Using the Ferroelectric Technology
MAGDY ISKANDER & WAYNE KIM
The design of an integrated phased antenna array with beam steering capability
represents an alternative low cost design that may still provide the much needed
low cost, while maintaining the required high performance. Similar to the case
of the phase shifters, we utilized the multilayer dielectric materials structure
with Ferroelectric materials in the phased antenna array technology. Fig. 1a
shows the basic parallel plate phased array structure. It consists of parallel
plate waveguide feed, and radiating open ended stubs that are carefully designed
to provide the desired radiation pattern in a specific frequency band.
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| Fig.
1. (a) Basic schematic of a 3 Elements planar
array. (b) Practical realization and commercialization
at Raytheon (formally Hughes Aircraft Company)
(c) Multilayer antenna array and (d) array
pattern at 2 GHz for 10 and 20 % tunability. |
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