C波段超宽带双极化微带贴片天线的设计  

Design of C-band Ultra-wideband Dual-polarized Microstrip Patch Antenna

作　　者：王安义[1] 叶竹辉 李旭虹[1] 徐艳红 WANG An-yi;YE Zhu-hui;LI Xu-hong;XU Yan-hong(School of Communication and Information Engineering,Xi’an University of Science and Technology,Xi'an 710054,China;School of Transportation Information,Shaanxi Communications Vocational and Technical College,Xi’an 710018,China)

机构地区：[1]西安科技大学通信与信息工程学院,西安710054 [2]陕西交通职业技术学院交通信息学院,西安710018

出　　处：《科学技术与工程》2021年第5期1871-1876,共6页Science Technology and Engineering

基　　金：国家自然科学基金青年基金(61901357);西安科技大学优秀青年基金(2019YQ3-14);陕西省重点产业创新链项目(2019ZDLSF07-06)。

摘　　要：设计并仿真优化了基于L探针耦合馈电的C波段超宽带新型±45°双极化微带贴片天线,所设计的实现双极化采用的方法是两个正交L探针相互耦合并进行馈电,使得天线所承载的信道容量得到大幅度提升。借助Ansoft HFSS 15.0,完成对所设计的天线进行仿真验证,使得其重合阻抗带宽为38%,即在3.95~5.80 GHz时驻波比(voltage standing wave ratio,VSWR)小于等于2。同时,该天线在两个端口分别激励的情况下平均增益大于9.0 dBi,两个端口之间的隔离度大于22 dB,交叉极化电平小于-15 dB。该天线结构设计简单,可广泛应用于C波段超宽带无线收发通信系统。A new ultra-wideband±45°dual-polarized microstrip patch antenna based on L-probe coupling feed was proposed.The antenna used orthogonal dual-L-probe coupling feed to achieve dual-line polarization.The channel capacity of the antenna was improved.The electromagnetic simulation software Ansoft HFSS 15.0 was used to conduct the simulation verification of the antenna.The results show that the coincidence impedance bandwidth of the antenna is 38%,voltage standing wave ratio(VSWR)below 2 when frequency is between 3.95 GHz and 5.80 GHz.Moreover,the average gain of the antenna when the two ports were separately excited was greater than 9.0 dBi.The isolation between the two ports was greater than 22 dB and the cross-polarization level was less than-15 dB.The results show that the antenna structure is simple in design and can be widely used in C-band ultra-wideband wireless transceiver communication systems.

关 键 词：超宽带 双极化天线 微带贴片天线 L探针 

分 类 号：TN821.1[电子电信—信息与通信工程]