Absorption Efficiency in Impedance Matched Infrared Dipole Antenna-coupled Microbolometers

被引：0
|
作者：
Xu, Yuancheng [1 ]
Lail, Brian A. [1 ]
机构：
[1] Florida Inst Technol, Dept Elect Engn, Melbourne, FL 32901 USA
来源：
2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING | 2015年
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Optical antenna collection efficiency is limited by material loss, particularly dissipation in optical metals. We investigate the radiation resistance and Ohmic resistance in transmitting infrared (IR) dipole antennas by considering the concepts of input impedance, radiation efficiency and dispersion of metals in the antenna. Then by applying antenna reciprocity, the receiving properties of IR antennas are explored. We analyze the power absorbed by a nickel (Ni) microbolometer load connected with a half-wave dipole antenna and a full-wave dipole antenna. By tuning the load impedance we are able to impedance match to IR dipoles in order to show enhanced absorption efficiency when radiation resistance dominates over Ohmic loss.
引用
收藏
页码：1650 / 1651
页数：2
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