Miniaturized multi-frequency antenna and manufacturing method thereof

A technology of multi-frequency antenna and manufacturing method, which is applied in the directions of antenna, antenna coupling, resonant antenna, etc., and can solve the problems affecting the quality and damage of multi-frequency antenna

Active Publication Date: 2021-05-14
常州仁千电气科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above structure, the feed pin of the ceramic antenna is connected to the ceramic dielectric layer by welding. During the welding process, due to the uneven heating inside the ceramic dielectric

Method used

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  • Miniaturized multi-frequency antenna and manufacturing method thereof
  • Miniaturized multi-frequency antenna and manufacturing method thereof
  • Miniaturized multi-frequency antenna and manufacturing method thereof

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Embodiment approach

[0046] Method 1: If figure 2 As shown, a diagonal of the square is 45° to the central plane;

[0047] Method 2: If Figure 4 As shown, a diagonal of the square coincides with the central plane.

[0048] Such as Figure 5 As shown, the circuit board 1 is provided with a metallized hole 11 for the feed pin 6 of the ceramic antenna 2 to pass through, and the circuit board 1 is provided with a pad structure on the bottom surface opposite to the installation surface of the ceramic antenna 2. The pad structure is electrically connected, and connectors are also arranged on the side where the pad structure is located. In order to adapt to the above-mentioned method 1 and method 2, the metallized hole corresponding to the feed pin 6 of the bottom ceramic antenna 2 can be set as an arc structure on the circuit board 1, thereby increasing the versatility of the circuit board 1 and making stacking The ceramic antennas 2 can be directly rotated on the circuit board 1 of the same type ...

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Abstract

The invention relates to the technical field of circularly polarized antennas of Beidou systems, in particular to a miniaturized multi-frequency antenna which comprises a circuit board, at least two ceramic antennas which are stacked and have different frequency bands and at least one ceramic antenna which is independently arranged are arranged on the circuit board, and an elastic connecting piece is arranged between a feed needle and a ceramic dielectric layer. The elastic connecting piece comprises an annular inner ring and an annular outer ring, the annular inner ring and the annular outer ring are connected through a connecting end and then spread in a diffusion mode in the axial direction, the annular inner ring is attached to the feed needle, and the annular outer ring is attached to the inner wall of the metal through hole in the ceramic dielectric layer. According to the invention, the low-elevation gain of each frequency band is effectively improved, the damage of the ceramic dielectric layer in the welding process is avoided through the use of the elastic connecting piece, and the elasticity of the elastic connecting piece can cope with the problem of local damage of the joint caused by impact in the use process compared with welding. Meanwhile, the invention further provides a manufacturing method of the miniaturized multi-frequency antenna, and the manufacturing method has the same technical effect.

Description

technical field [0001] The invention relates to the technical field of circularly polarized antennas of the Beidou system, in particular to a miniaturized multi-frequency antenna and a manufacturing method thereof. Background technique [0002] The conventional multi-frequency antennas of the Beidou system are stacked or tiled. Among them, the size of the stacked form is smaller and smaller from the bottom to the top, but the antenna frequency band bandwidth is required to be narrow, the frequency band is high, the frequency interval is large, and the hand-held The available space of the terminal is generally long, so the tiled form is more common, but the above-mentioned tiled combination method makes the size of the antenna larger, and it is difficult to be widely used in handheld terminals. [0003] In order to solve the above problems, in the prior art, multiple frequency bands are covered by a combined multi-frequency antenna of stacked ceramic antennas and independent ...

Claims

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Application Information

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IPC IPC(8): H01Q9/04H01Q1/52H01Q1/00
CPCH01Q1/002H01Q1/521H01Q9/0414H01Q9/0428H01Q9/045
Inventor 范炼谢征兰
Owner 常州仁千电气科技股份有限公司
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