A filtered dipole antenna
By loading folded metal arm units and extension arm units on both sides of the dielectric layer, the problems of miniaturization and high performance of the filter antenna are solved, realizing the miniaturization and high filtering performance of the antenna, which is suitable for integrated RF front-end systems.
CN117458129BActive Publication Date: 2026-06-30SHENZHEN UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN UNIV
- Filing Date
- 2023-11-20
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Existing filter antennas struggle to balance miniaturization and high performance, especially in terms of structural miniaturization, efficiency, gain, and roll-off, which require further development.
Method used
A filtered dipole antenna was designed. By loading a first metal arm unit, a second metal arm unit, and a metal extension arm unit on both sides of the dielectric layer, a folded structure is formed, generating 1-2 radiation nulls, achieving high roll-off characteristics and frequency selectivity, while reducing the antenna size.
Benefits of technology
It achieves antenna miniaturization and high filtering performance, with high frequency selectivity and omnidirectional radiation, making it suitable for integrated RF front-end systems.
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Smart Images
Figure CN117458129B_ABST
Abstract
This invention discloses a filtered dipole antenna, comprising a dielectric layer, on which a first metal arm unit, a second metal arm unit, and a metal extension arm unit are loaded. The first metal arm unit includes a first metal arm branch, a second metal arm branch, and a third metal arm branch disposed on a first side of the dielectric layer. The second metal arm unit includes a fourth metal arm branch, a fifth metal arm branch, and a sixth metal arm branch disposed on a first side of the dielectric layer. The metal extension arm unit includes a first metal extension arm disposed on a first side of the dielectric layer, a second metal extension arm, and a third metal extension arm disposed on a second side of the dielectric layer. The antenna has 1-2 radiation nulls on each of its upper and lower passband edges, achieving filtering function and frequency selectivity with high roll-off characteristics, while reducing the antenna size, making the antenna small and compact, and playing an important role in integrated RF front-end systems.
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