缝隙加载的低剖面双频北斗天线设计
Design of a Slot-Loaded Low-Profile Dual-Frequency Antenna for Beidou System
- 电子学报 2024年52卷第8期 页码：2679-2687
- 作者机构：
1.广东工业大学物理与光电工程学院，广东广州 510006
2.广州中海达卫星导航技术股份有限公司，广东广州 511400
- 作者简介：
[ "李锐雄 男，1997年生，广东揭阳人.广东工业大学硕士研究生.主要研究方向为微带天线、卫星导航天线等.E-mail: rrxxll12@163.com" ]
[ "林福民 男，1964年生，广东汕头人.2003年获电子学博士学位.广东工业大学教授.主要研究方向为电磁场与微波技术，包括天线、滤波器、射频器件与电路等.E-mail: linfumin@gdut.edu.cn" ]
李晓鹏 男，1987年生，山东菏泽人.硕士.主要研究方向为轻小型GNSS接收天线及应用.E-mail: lixiaopeng062419@163.com
张华福 男，1985年生，广东茂名人.硕士，广州中海达卫星导航技术股份有限公司射频工程师.主要研究方向为卫星导航系统及其应用.E-mail: huafu135@163.com
- 基金信息：
DOI：10.12263/DZXB.20230444
中图分类号： TN828.5;收稿：2023-05-17，
修回：2023-12-18，
纸质出版：2024-08-25
- 稿件说明：
移动端阅览
李锐雄, 林福民, 李晓鹏, 等. 缝隙加载的低剖面双频北斗天线设计[J]. 电子学报, 2024, 52(08): 2679-2687.
LI Rui-xiong, LIN Fu-min, LI Xiao-peng, et al. Design of a Slot-Loaded Low-Profile Dual-Frequency Antenna for Beidou System[J]. Acta Electronica Sinica, 2024, 52(08): 2679-2687.
李锐雄, 林福民, 李晓鹏, 等. 缝隙加载的低剖面双频北斗天线设计[J]. 电子学报, 2024, 52(08): 2679-2687. DOI：10.12263/DZXB.20230444
LI Rui-xiong, LIN Fu-min, LI Xiao-peng, et al. Design of a Slot-Loaded Low-Profile Dual-Frequency Antenna for Beidou System[J]. Acta Electronica Sinica, 2024, 52(08): 2679-2687. DOI：10.12263/DZXB.20230444
摘要
本文设计了一款应用于北斗系统（BeiDou System，BDS）的新型低剖面双频段贴片天线.该天线基于单层贴片天线结构，通过“桥形”缝隙加载的方式，引入新的谐振频率，使天线工作在双频段（分别以1 176 MHz和1 575 MHz为中心频点），实现共面双频辐射.同时加载4个环形缝隙，仅用一组馈电针进行耦合馈电，方便调节阻抗匹配，同时减少馈电针数量，简化馈电网络复杂性.另外在天线侧面加载“π型”金属枝节，进一步优化高频阻抗匹配.实测结果表明，该天线在B1C频段和B2a频段的增益大于3.5 dBic，轴比均小于3 dB.频谱显示，该天线能工作于北斗系统的B1C、B2a频段，有望应用于北斗定位系统终端设备.
Abstract
A new low-profile dual-band patch antenna for BeiDou system (BDS) applications is designed in this paper. The antenna is based on a single-layer patch antenna structure
and a new resonant frequency is introduced through loading “bridge-type” gaps
so that the antenna operates in dual frequency bands (resonant at 1 176 MHz and 1 575 MHz
respectively)
realizing coplanar dual-frequency radiation. Meanwhile
four annular gaps are loaded and only one set of feeding pins is used for coupled feeding
which contributes to adjust impedance matching while reducing the number of feeding pins and simplifying the feeding network. In addition
“π type” metal branches are installed on the side of the antenna to further optimize impedance matching in high frequency band. The measured results show that the gain of the antenna is greater than 3.5 dBic in both the B1C band and B2a band
and the axial ratio are less than 3 dB in the above frequency bands. The spectrum shows that the developed antenna operates in the B1C and B2a frequency bands of Beidou system
and is expected to be applied to the terminal equipments of Beidou positioning system.
关键词
Keywords
references
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