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

• 作者: Jan Schorer Jens Bornemann
• 来源期刊: 无线工程与技术(英文)
• 学科: 工学
• 关键词: Tapered Slot Antenna ULTRA-WIDEBAND MICROSTRIP SLOTLINE Planar Transmission Lines
• 年，卷（期）: 2013,（1）
• 页码范围: 13-18
• 页数: 6页
• 分类号: TN8

摘要

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.