| 摘要: |
| 设计了一种宽带微带贴片八木天线。通过采用正方形贴片形状、附加寄生贴片等方法
，获得了较大的相对阻抗带宽和较好的方向性。该天线工作频率为12 GHz，三维电磁
仿真
软件Ansoft HFSS仿真结果表明：这种改进型天线在其它参数不变的情况下，其相对阻抗带
宽达到27.5%（VSWR≤2）,实现了天线频带的超宽性，满足了某项目中无线通信设备的
需要
。 |
| 关键词: 微带天线 贴片八木天线 高增益 宽频带 寄生贴片 |
| DOI： |
|
| 基金项目:广西回国基金项目（桂科回0991021） |
|
| Design of a Modified Microstrip Patch Yagi Antenna |
| NI Guo-qi,YU Bai-ping,LIANG Jun |
| () |
| Abstract: |
| A broadband microstrip patch Yagi antenna is presented in this paper.
It can achieve a greate relative impedance bandwidth and good pattern by using s
quare patch and adding parasitic patch. The operational frequency is 12 GHz.
Ansoft HFSS simulation results indicate that this modified antenna can achieve 2
7.5%（VSWR≤2） rel
ative impedance bandwidth on condition that other pa
rameters are the same.The ultra-wideband property of the antenna b
andwidth is realized and the antenna meets the requirement of the wireless commu
nication equipment in a project. |
| Key words: microstrip antenna patch Yagi antenna high gain broadband parasitic patch |
