New Feed Mechanism for Dual-Polarized Microstrip Ring Patch Antenna

Po Kai Wang, Ting Hung Ko, Jeen Sheen Row

研究成果: Conference contribution

摘要

A novel feed mechanism for microstrip patch antennas is presented. The structure of the feed can be regarded as a coaxial balun, and it can be resonant in a one-wavelength loop mode. When the loop mode is properly coupled with the fundamental mode of the microstrip antenna, a broad impedance bandwidth and a symmetrical radiation pattern can be obtained. For the proposed feed, parametric analyses are first performed when it is applied into a square-ring patch antenna. Based on the simulation results, a dual-polarized ring patch antenna is then developed, and its prototype is constructed. Both measured and simulated results indicate that the antenna prototype has a gain of higher than 8 dBi and a cross polarization level of lower than -25 dB within an impedance bandwidth of about 12 %. In addition, the two orthogonal input ports has an isolation level of smaller than -30 dB across the whole operating frequency band.

原文English
主出版物標題13th European Conference on Antennas and Propagation, EuCAP 2019
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9788890701887
出版狀態Published - 2019 三月
事件13th European Conference on Antennas and Propagation, EuCAP 2019 - Krakow, Poland
持續時間: 2019 三月 312019 四月 5

出版系列

名字13th European Conference on Antennas and Propagation, EuCAP 2019

Conference

Conference13th European Conference on Antennas and Propagation, EuCAP 2019
國家Poland
城市Krakow
期間19-03-3119-04-05

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Instrumentation

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