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An Electrically Scanned Lens Antenna for 2-D Scanning
State Key Lab of Millimeter Waves, Southeast University, Nanjing, China
State Key Lab of Millimeter Waves, Southeast University, Nanjing, China
- 1 State Key Lab of Millimeter Waves, Southeast University, Nanjing, China
- 2 State Key Lab of Millimeter Waves, Southeast University, Nanjing, China
Wireless Engineering and Technology·Volume 03 (2012)·Pages 83–85·Published 28 April 2012·DOI10.4236/wet.2012.32013
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Abstract
An electrically scanned lens antenna for two dimensional scanning is presented. The antenna system is composed of a (N × 1) feed array, a binary diffractive dielectric lens (BDL) and a voltage-controlled ferroelectric lens (VCFL). The feeds at different offset foci of the BDL generate receiving beams pointing to different angles to perform beam scanning in one dimension; the VCFL made of ferroelectric slabs which show linear permittivity gradient when loaded with corresponding DC voltages generate linear phase shift to steer the beam in the other dimension.
KeywordsElectrically ScanningBinary Diffractive LensVoltage-Controlled Ferroelectric Lens
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