UWB Active Antenna for Microwave Breast Imaging Sensing Arrays

被引：21
作者：
Foroutan, Farzad [1 ]
Nikolova, Natalia K. [1 ]
机构：
[1] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4L8, Canada
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2019年 / 18卷 / 10期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Antenna measurements; Microwave antenna arrays; Pins; Ultra wideband antennas; Active antenna; antenna array; active radio sensor; biased-switched array; microwave imaging; printed-slot antenna; ultrawideband (UWB);
D O I：
10.1109/LAWP.2019.2929016
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An ultrawideband (UWB) active slot antenna for tissue sensing arrays is developed and measured to operate from 3 to 8 GHz. The sensing element reported here is to be used in the imaging of the breast. It integrates a low-noise amplifier (LNA) with a printed-slot antenna to achieve gain enhancement of about 20 dB. The first prototype integrates the biasing of the LNA on the same board as the antenna. The second prototype uses an external bias tee providing dc power to the LNA through the coaxial connector of the active antenna. Both prototypes achieve the expected gain enhancement in comparison with the passive antenna element.
引用
收藏
页码：1951 / 1955
页数：5
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