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http://dx.doi.org/10.5515/KJKIEES.2013.24.3.348

A Tapered Slot Antenna with Asymmetric Corrugations for a Microwave Brain Imaging System  

Lee, Juneseok (Department of Electronics & Computer Engineering, Hanyang University)
Park, Joongki (Department of Electronics & Computer Engineering, Hanyang University)
Choi, Jaehoon (Department of Electronics & Computer Engineering, Hanyang University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.24, no.3, 2013 , pp. 348-351 More about this Journal
Abstract
Recently, a brain imaging system with microwave devices has been proposed. The brain imaging system requires a small antenna which has ultra wide band(UWB) operating frequency bandwidth(0.5~2 GHz) and non-varying boresight of antenna over the frequency band. This paper proposes asymmetric corrugations on a tapered slot antenna (TSA) so that the size of the TSA is reduced by 14 % while 10 dB return loss bandwidth is satisfied over the operating frequency band from 0.5 GHz to 2 GHz. A miniaturized TSA with symmetric corrugations shows tilted boresight whilst frequency is getting lower; however, the proposed TSA with asymmetric corrugations maintains direction of boresight for different frequencies. This enhancements make an asymmetric corrugated TSA meet the requirement of the brain imaing system.
Keywords
Tapered Slot Antenna; Microwave Brain Imaging System; Corrugation; Asymmetric Structure; Ultra Wide Band;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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