1. In the realm of microwave high-frequency circuit boards—such as those used in communication antennas, satellite antennas, and microwave antennas—circuit boards exceeding 800mm in length are typically referred to as ultra-long circuit boards or ultra-long PCB antenna boards.

2. These circuit boards are essential components in the modern electronic information industry and have rapidly found applications and undergone significant development in sectors like mobile phones, automotive communication devices, wireless communications, and broadcasting.

3. However, most existing antenna board designs adhere to PCB design specifications for lengths under 800mm.

4. When these specifications are applied to ultra-long antenna board structures, significant issues can arise in terms of signal fidelity, lifespan, and manufacturing design costs.


1. In response to the limitations of existing technologies, PCB has introduced a new structure for an ultra-long PCB antenna board.

2. By implementing structural enhancements such as an aluminum substrate and an antenna unit, this design effectively ensures the overall strength and signal transmission capabilities of the antenna board while maintaining simplicity and low cost.

3. To achieve these objectives, the ultra-long PCB antenna board, developed through the following technical solutions, includes a metal substrate.

4. The upper surface of the metal substrate features an antenna circuit layer, which consists of an antenna unit and a ground unit.

5. The antenna unit is connected to the ground unit via a feed unit; the lower surface of the metal substrate is equipped with a tin-plated layer, which is then covered by a glass glue layer.

6. This structure allows the addition of a tin layer and a glass glue layer beneath the traditional metal substrate, ensuring not only excellent insulation performance but also enhancing the strength of the metal substrate.

7. Consequently, this improves the overall toughness of the antenna board, enabling it to maintain a good service life even at lengths exceeding 800 mm, such as 1200 mm.

8. By utilizing the feed unit to link the antenna unit with the ground unit, installation complexity is reduced, making the antenna unit easier to disassemble and replace.

9. In applications requiring longer antenna boards, more antenna units can be installed by increasing the number of feed units, which in turn lowers production and operational costs.

10. The feed unit can take any form that allows for partial connection with other units at both ends, such as a double-ended clip or a cassette with grooves at either end; such products are commonly available in the electronics industry.

11. The aforementioned metal substrate may include standard materials used in the antenna field, such as aluminum substrates or copper foil substrates, which are well-recognized in the field.

12. Notably, the grounding unit is L-shaped, effectively managing volume while maintaining sufficient bending strength.

13. The antenna unit comprises multiple groups capable of transmitting signals of various specifications, including mobile communication and satellite signals.

14. Additionally, the metal base plate is designed with positioning holes to facilitate the secure installation of the antenna board onto other structural elements.

15. Through these structural enhancements, the antenna board of the present invention offers excellent signal transmission capabilities over extended lengths, ensuring a good service life, low production and usage costs, and high scalability.



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