Three-dimensional super-wideband micro-antenna for high-resolution millimeter-wave medical imaging

Author

Mirbeik, Amir ; Tavassoli, Vahid ; Ayazi, Farrokh ; Tavassolian, Negar

Author_Institution

Dept. of Electr. & Comput. Eng., Stevens Inst. of Technol., Hoboken, NJ, USA

fYear

2014

fDate

26-30 Aug. 2014

Firstpage

4999

Lastpage

5002

Abstract

This paper reports on a novel super-wideband micro-hemispherical antenna with application in millimeter-wave medical imaging. The antenna is composed of a hemispherical shell suspended above a substrate and can be fabricated using a fabrication technology originally developed for micron-scale electromechanical resonators. The antenna exhibits a wide fractional bandwidth of more than 80% (from 64 GHz to 150 GHz) and a high gain of 8.6 dBi at its center frequency. Radiation parameters of the antenna are characterized and the effect of its super-wideband behavior on pulsed millimeter-wave imaging is demonstrated. Finally, a preliminary array configuration composed of two antennas placed side-by-side in the vicinity of a skin-mimicking target is evaluated and the ability to fully detect the target has been demonstrated.

Keywords

antenna radiation patterns; biomedical imaging; millimetre wave antennas; millimetre wave imaging; fabrication technology; hemispherical shell; high resolution millimeter wave medical imaging; micron scale electromechanical resonators; pulsed millimeter wave imaging; radiation parameters; skin mimicking target; three dimensional super wideband microantenna; Antennas; Biomedical imaging; Microwave imaging; Millimeter wave technology; Skin;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1557-170X

Type

conf

DOI

10.1109/EMBC.2014.6944747

Filename

6944747