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Broadband Feed for Low Cross-Polarization Uniplanar Tapered Slot Antennas on Low-Permittivity Substrate

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DOI: 10.4236/wet.2013.41003    3,750 Downloads   6,775 Views   Citations

ABSTRACT

A broadband feeding technique for the uniplanar tapered slot antenna (TSA) is presented. The TSA operates at a center frequency of 6.5 GHz with a 7 GHz bandwidth (107 percent). The antenna and feed are realized with a broadband microstrip-to-slotline transition on a low permittivity high frequency substrate, Rogers RT/Duroid 5880. The input impedance of the system is designed for 50 Ω compatibility with other system components, and the cross polarization is kept below 30 dB. The developed TSA system was simulated with commercially available electromagnetic software and manufactured. Measured results validate the design process and the antenna’s performance.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

J. Schorer and J. Bornemann, "Broadband Feed for Low Cross-Polarization Uniplanar Tapered Slot Antennas on Low-Permittivity Substrate," Wireless Engineering and Technology, Vol. 4 No. 1, 2013, pp. 13-18. doi: 10.4236/wet.2013.41003.

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