Title :
A C-Band Flat Lens Antenna With Double-Ring Slot Elements
Author :
Chen, Yuanfeng ; Chen, Luo-nan ; Yu, Jian-Feng ; Shi, Xiao-Wei
Author_Institution :
National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi´´an, China
Abstract :
A novel flat lens antenna using double-ring slot element is presented. Compared to those conventional high-gain antennas, the proposed lens antenna can realize greater flexibility in the installation with less manufacturing complexity. A prime-focus 49-element prototype lens antenna using the proposed elements has been fabricated and measured. The highest measured gain is 16.7 dBi at the center frequency of 6 GHz, and a relative bandwidth of 15% is achieved within 3-dB gain variations. All experimental results demonstrate that the proposed lens antenna can be used as an optimum airborne antenna in the future.
Keywords :
Antenna measurements; Antenna radiation patterns; Bandwidth; Gain; Lenses; Phased arrays; Airborne antenna; high-gain antenna; lens antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2247973
