A novel broadband asymmetric coplanar waveguide (ACPW)-fed zeroth-order resona- tor antenna based on epsilon negative transmission line

作者：Niu Bing Jian; Feng Quan Yuan^*

来源：Progress in Electromagnetics Research Letters, 2013, 38: 79-88.

• Asymmetric coplanar waveguides
• Broad bandwidths
• Epsilon negatives
• Equivalent circuit parameter
• Measured results
• Omnidirectional radiation
• Operating bandwidth
• Wireless communication system

A broadband zeroth-order resonant (ZOR) antenna based on asymmetric coplanar waveguide (ACPW) is presented. By adopting the epsilon negative transmission line (ENG-TL), a zeroth-order resonance mode can be achieved. We employ an asymmetric coplanar waveguide structure which offers the design freedom to realize the broadband ZOR antenna, where the antenna's bandwidth is characterized by the equivalent circuit parameters. The antenna has the compact unit cell dimensions of 5 × 13:8mm2. The measured results show that the operating bandwidth is about 1050MHz (1.90- 2.95 GHz), and the peak gain and radiation effciency are 2.46 dBi and 91% at zeroth-order 2.3 GHz. Owing to the characteristics of broad bandwidth, high effciency, omnidirectional radiation, and easy manufacturing, the proposed ACPW ZOR antenna is very suitable for modern wireless communication systems (UMTS, WLAN, WIMAX, LTE).

• 出版日期2013
• 单位西南交通大学