一种基于SIW的宽带毫米波平面圆极化磁电偶极子天线
By designing a broadband millimeter-wave planar circularly polarized magnetoelectric dipole antenna based on SIW, and utilizing a "王"-shaped coupling slot and a fan-shaped patch structure, the problem of narrow bandwidth of magnetoelectric dipole antennas was solved, realizing broadband applications and miniaturized integration in the high-frequency band, and improving the performance of communication systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING UNIV OF POSTS & TELECOMM
- Filing Date
- 2023-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
Existing millimeter-wave band magnetoelectric dipole antennas have narrow bandwidths, making it difficult to meet the needs of broadband applications. Furthermore, traditional designs are difficult to miniaturize and planarize, which affects the performance of wireless communication systems.
Design a broadband millimeter-wave planar circularly polarized magnetoelectric dipole antenna based on SIW. It adopts a two-layer dielectric substrate and two-layer metal layer structure, combined with "王"-shaped coupling slots and large and small fan-shaped radiating patches. The antenna is fed through the substrate integrated waveguide structure of SIW, which broadens the impedance and axial ratio bandwidth of the antenna.
The antenna achieved an impedance bandwidth of 42.7%, an axial ratio bandwidth of 52.4%, and a profile height of only 2.575 mm, which enhanced the antenna's frequency utilization and miniaturization integration capabilities, thereby improving the performance of the communication system.
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Figure CN116864975B_ABST