一种低成本的双频双极化天线阵列,具有高收益
Jin-Dong Zhang1, Min Wang1, Wen Wu1
1Key Laboratory of Near-Range RF Sensing ICs and Microsystems (NJUST), Ministry of Education, School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
Micromachines
|October 29, 2025
概括
一个新的高收益微条形天线阵列使得使用单个天线实现双频和双极化卫星通信. 这种设计最大限度地减少损失,使信号传输和接收效率高.
科学领域:
- 电气工程 电气工程
- 天线理论天线理论
- 卫星通信 卫星通信
背景情况:
- 卫星通信系统需要高效的天线来发送和接收信号.
- 传统的微条带天线可能会因为大光圈的料线造成高损耗.
- 对于增加通信灵活性,双频和双极化能力是可取的.
研究的目的:
- 提出一种具有双频和双极化能力的高收益微条形天线阵列.
- 为了应对大型天线阵列的微条带料线的高损失的挑战.
- 为了使卫星通信系统能够使用单个天线进行传输和接收.
主要方法:
- 天线阵列被分为子阵列,每个子阵列都由低损失的单独料网络供电.
- 双频和双极化是通过角养的矩形补丁的直角模式来实现的.
- 半斜坡同轴线和低插入损失的辐射功率分隔器用于最大限度地降低输入网络损失.
主要成果:
- 制造和测量了一种32x32元阵列原型,在12.5GHz和14.25GHz运行.
- 测量结果与模拟数据密切匹配.
- 实现了12.04-12.69 GHz和13.82-14.66 GHz的-10 dB回归损失带宽.
- 测量的增益在各自的操作频段为34.5dBi和35.2dBi.
结论:
- 拟议的微条形天线阵列设计成功地展示了高增益,双频和双极化操作.
- 亚阵列养策略和优化的养网络有效地将损失降到最低.
- 通过测量性能验证设计,显示与模拟的良好一致.
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