A compact double-elliptical slot-antenna for medical applications

Author

Li, Xuyang ; Yan, Jijing ; Jalilvand, Malyhe ; Zwick, Thomas

Author_Institution

Inst. fur Hochfrequenztech. und Elektron., Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany

fYear

2012

fDate

26-30 March 2012

Firstpage

3677

Lastpage

3680

Abstract

An on-body matched UWB antenna with relative bandwidth of 155% is presented for medical applications. Based on the differential feed, the antenna features a very stable phase center and radiation pattern from 1 to 8 GHz. The antenna is miniaturized by using an elliptical slot with a size of 25×36 mm², which allows an array with high number of antenna elements. The antenna is characterized in the simulation and the measurement with a phantom material emulating the dielectric constant of human body in terms of impedance matching, antenna pattern and sensitivity of antenna to dielectric property of human tissues. The high performance of the antenna confirm the applicability of the antenna in the UWB systems operated in frequency domain as well as in pulse-based systems for the detection of breast cancer, urine in human bladder and etc.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; biological tissues; cancer; impedance matching; microwave antennas; microwave imaging; slot antennas; ultra wideband antennas; antenna pattern; antenna sensitivity; breast cancer detection; compact double-elliptical slot-antenna; dielectric constant; dielectric property; differential feed; frequency 1 GHz to 8 GHz; frequency domain; human bladder; human tissue; impedance matching; medical application; on-body matched UWB antenna; phantom material; pulse-based system; radiation pattern; relative bandwidth; urine detection; Antenna feeds; Antenna measurements; Antenna radiation patterns; Phantoms; Slot antennas; UWB; differential feeding; double-elliptical slot; medical application; on body;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), 2012 6th European Conference on

Conference_Location

Prague

Print_ISBN

978-1-4577-0918-0

Electronic_ISBN

978-1-4577-0919-7

Type

conf

DOI

10.1109/EuCAP.2012.6206093

Filename

6206093