An Electrically Scanned Lens Antenna for 2-D Scanning

• 作者: Da-Peng Fan Zong-Xin Wang
• 来源期刊: 无线工程与技术(英文)
• 学科: 医学
• 关键词: Electrically SCANNING BINARY DIFFRACTIVE LENS Voltage-Controlled FERROELECTRIC LENS
• 年，卷（期）: 2012,（2）
• 页码范围: 83-85
• 页数: 3页
• 分类号: R73

摘要

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.