一种天线及电子设备
By constructing an air gap and a multi-level branch layout between the antenna body and the radome, the problems of dielectric loss and coupling effect caused by direct contact between the antenna body and the plastic shell are solved, thereby improving the antenna's signal transmission efficiency and bandwidth coverage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LCFC HEFEI ELECTRONICS TECH
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, direct contact between the antenna body and the plastic shell leads to dielectric loss and dielectric coupling effects, which reduce the antenna's radiation efficiency and signal transmission quality, making it difficult to meet the demands of modern electronic devices for high-performance antennas.
A non-contact support structure is adopted, and an air gap is built between the antenna body and the radome to reduce the dielectric coupling effect by utilizing the low dielectric properties of air. Signal transmission is optimized through multi-level branch layout and gap design.
It significantly reduces the dielectric loss of electromagnetic signals, improves signal transmission efficiency and radiation efficiency, expands the operating frequency band, and achieves efficient signal transmission and impedance matching.
Smart Images
Figure CN224520172U_ABST
Abstract
Claims
1. An antenna, characterized in that, The antenna includes an antenna radome, an antenna body, and a connector. The antenna body is connected to the inner wall of the radome via the connector, and an air gap is formed between the antenna body and the inner wall of the radome. The antenna body reduces the dielectric coupling effect through the air gap.
2. The antenna according to claim 1, characterized in that, The antenna also includes a circuit board. The antenna radome has an open end. The circuit board is located near the open end of the antenna radome and is electrically connected to the antenna body through a conductor. The antenna body and the circuit board are spaced apart.
3. The antenna according to claim 1, wherein, The connector includes a plurality of spaced-apart connecting posts. One end of each connecting post is connected to the bottom wall of the radome, and the other end of each connecting post is connected to the antenna body. The connecting posts are made of wave-transparent material.
4. The antenna according to claim 2, wherein, The antenna body has a rectangular structure and includes a first radiating stub, a second radiating stub, a third radiating stub, and a parasitic stub. A gap is formed between the second radiating branch and the third radiating branch, as well as between the second radiating branch and the first radiating branch; a gap is also formed between the parasitic branch and the first radiating branch, as well as between the parasitic branch and the second radiating branch. The second radiating branch is provided with a power supply point and a grounding point, and the first radiating branch and the third radiating branch are both connected to the power supply point and the grounding point.
5. The antenna according to claim 4, characterized in that, The gap dimensions between the first radiating branch and the second radiating branch, the gap dimensions between the second radiating branch and the third radiating branch, the gap dimensions between the first radiating branch and the parasitic branch, and the gap dimensions between the second radiating branch and the parasitic branch are all 0.6mm-0.8mm.
6. The antenna according to claim 4, characterized in that, The electrical lengths of the first radiating branch, the second radiating branch, the third radiating branch, and the parasitic branch are all λ / 4; where λ is the wavelength corresponding to the preset frequency band.
7. The antenna according to claim 6, characterized in that The conductor includes a feed conductor, a short-circuit conductor, and a parasitic conductor; One end of the feed conductor is connected to the circuit board, and the other end is connected to the feed point of the antenna body; One end of the short-circuit conductor is connected to the circuit board, and the other end is connected to the grounding point on the antenna body; One end of the parasitic conductor is connected to the circuit board, and the other end is connected to the parasitic branch.
8. The antenna according to claim 7, characterized in that, At least one of the ends of the power supply conductor, the short-circuit conductor, and the parasitic conductor has a gold-plated layer on its surface.
9. The antenna according to claim 1, wherein, The antenna body is made of stainless steel, and the outer surface of the antenna body is plated with nickel.
10. An electronic device, comprising: The electronic device includes the antenna as described in any one of claims 1-9 as above.