摘 要：针对基站天线需覆盖更大的带宽的需求，提出了一种新的复合振子结构的小型化天线。振子由两对“V”字型和“十”字型复合振子组合而成。“V”字型振子通过射频电缆馈，“十”字形振子与“V”字形振子互耦实现耦合馈电。天线单元通过共轴复合结构节省了体积，实现宽频天线的小型化。仿真和测试结果表明，所设计的天线工作带宽覆盖 690 ～ 960 MHz，1 710 ～ 2 690 MHz，且增益、驻波、旁瓣抑制等指标均达到预期。
关键词：基站天线；共面天线；宽频天线
DOI:10.19850/j.cnki.2096-4706.2022.08.015
中图分类号：TN929.5；TN820 文献标识码：A 文章编号：2096-4706（2022）08-0053-04
Design on Multi-Band Base Station Antenna
LI Jingsheng, RONG Rong, ZHAN Minfeng
(Guangzhou GCI Science and Technology Co., Ltd., Guangzhou 510310, China)
Abstract: For the requirements that the base station antenna needs to cover a larger bandwidth, this paper proposes a new miniaturized antenna with a composite oscillator structure. The oscillator is composed by two pairs of “V” type and “ten” type composite oscillators. The “V” type oscillator is fed through the RF cable, and the “ten” type and “V” type oscillators are coupled to coupling feeding. The antenna unit saves the volume through the coaxial composite structure and realizes the miniaturization of the broadband antenna. Simulation and test results show that the designed antenna work bandwidth covers 690 ～ 960 MHz, 1 710 ～ 2 690 MHz, and the gain, standing wave, and side-lobe suppression and other indexes all achieve the expectation.
Keywords: base station antenna; co-reflecting plate antenna; broadband antenna
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作者简介：李惊生（1963—），男，汉族，湖南涟源人，高级工程师，学士，毕业于四川大学无线电系无线电物理专业，研究方向：电波传播以及天馈技术；通讯作者：容荣（1979—），男，汉族，广西钦州人，高级工程师，硕士，毕业于华南理工大学通信与信息系统专业，研究方向：电波传播以及天馈技术；詹敏峰（1980—），男，汉族，湖北黄冈人，助理工程师，学士，毕业于西安电子科技大学电磁场与微波技术专业，研究方向：电波传播以及天馈技术。