Directional control of infrared antenna-coupled tunnel diodes

被引：18
作者：
Slovick, Brian A. [1 ]
Bean, Jeffrey A. [1 ]
Krenz, Peter M. [1 ]
Boreman, Glenn D. [1 ]
机构：
[1] Univ Cent Florida, CREOL Coll Opt & Photon, Orlando, FL 32816 USA
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 20期
关键词：
OXIDE; FIELD;
D O I：
10.1364/OE.18.020960
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Directional control of received infrared radiation is demonstrated with a phased-array antenna connected by a coplanar strip transmission line to a metal-oxide-metal (MOM) tunnel diode. We implement a MOM diode to ensure that the measured response originates from the interference of infrared antenna currents at specific locations in the array. The reception angle of the antenna is altered by shifting the diode position along the transmission line connecting the antenna elements. By fabricating the devices on a quarter wave dielectric layer above a ground plane, narrow beam widths of 35 degrees FWHM in power and reception angles of +/- 50 degrees are achieved with minimal side lobe contributions. Measured radiation patterns at 10.6 mu m are substantiated by electromagnetic simulations as well as an analytic interference model. (C) 2010 Optical Society of America
引用
收藏
页码：20960 / 20967
页数：8
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