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http://dx.doi.org/10.5515/KJKIEES.2010.21.6.553

Design of UWB Tapered Slot Antenna for the Optimum Impulse Radio Transmitting & Receiving  

Koh, Young-Mok (Department of Electronic Engineering, Kwangwoon University)
Ra, Keuk-Hwan (Department of Electronic Engineering, Kwangwoon University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.21, no.6, 2010 , pp. 553-563 More about this Journal
Abstract
This paper presents a tapered slot-antenna(TSA) for optimal impulse-signal transmission in ultra-wide band(UWB). The proposed TSA provides radiates in end-fire direction, which meets an impulse-radio UWB(IR-UWB) system demands(e.g., low loss, thus less error throughout the UWB band). In order to minimize the pulse distortion, we used an wideband impedance transformer and a microstrip slotline. The pulse fidelity characteristics was evaluated with finite-difference time-domain(FDTD) analysis technique and pulse fidelity correlation equation. Approximately 93.89 % pulse fidelity was obtained between the two antennas in 0.5 m range. Additionally, derived chirp Z-transform algorithm enables us to utilize the zoom-in option on the pulse signal in few nano-seconds below. Thus, it is possible to analyze the pulse signal distortion, delay or dispersion characteristics.
Keywords
Tapered Slot Antenna; Vivaldi Antenna; End-Fire Antenna; Pulse Fidelity; IR-UWB;
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