一种超宽带一体式高隔离AOA天线
By designing an ultra-wideband integrated high-isolation AOA antenna, and utilizing structures such as RF coaxial cable, PCB board, and metal vibrator, the problem of poor omnidirectional radiation pattern caused by small spacing of AOA antennas in UWB positioning technology was solved, achieving high isolation and good radiation performance of the antenna.
CN116845541BActive Publication Date: 2026-07-17DONGGUAN RENFENG ELECTRONIC TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGGUAN RENFENG ELECTRONIC TECH CO LTD
- Filing Date
- 2023-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In UWB positioning technology, AOA antennas suffer from poor omnidirectional radiation patterns due to mutual reflection caused by the antenna spacing being less than half the wavelength.
Method used
Design an ultra-wideband integrated high-isolation AOA antenna, using RF coaxial cable, PCB board and metal vibrator. By setting copper foil layer, microstrip line, circular slot and strip slot and other structures, three PIFA antenna elements are integrated into a whole, and the radiation direction and isolation can be adjusted.
Benefits of technology
This effectively eliminates the problem of poor omnidirectional radiation pattern caused by mutual reflection between antennas, thus improving the radiation performance of the antenna.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116845541B_ABST
Abstract
本发明提供的一种超宽带一体式高隔离AOA天线，包含射频同轴线、PCB板、五金振子，五金振子为由三支PIFA天线振子呈等边三角形状连接而成的一个整体，五金振子包含三个馈电脚、三个接地脚，PCB板上设置有第一插孔、第二插孔，接地脚插设于第二插孔上，馈电脚插设于第一插孔上，PCB板底面设置有与馈电脚相连的微带线，PCB板底面设置有位于微带线末端侧的焊盘，焊盘与铜箔层相连，射频同轴线与焊盘相连，铜箔层上贯通设置有圆环形缝隙，五金振子位于圆环形缝隙内侧，铜箔层中心贯通设置有三条以圆环形缝隙中心径向设置的条形缝隙，每条条形缝隙将相邻的PIFA天线振子的接地脚和馈电脚阻隔开，可以解决方向图全向性差的问题。
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