High Frequency PCB

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Supplier Info.

Company Name PCBMain Technology Ltd
Membership Free member
Registration Date2019.12.27
Country/RegionChina
CityHangzhou
Contact caifang huang(Ms.)

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Product Attributes

- Place of Origin China
- Supply Type OEM Service
- Condition New
- Related Keywords High Frequency PCB

Description by Manufacturer

High Frequency PCB

What is High Frequency (HF) PCB?

Electronic devices with high frequency is the developing tendency nowadays, especially in wireless network. Satellite communication growing rapidly, information products move towards high speed and high frequency. Thus developing new products always need to use high frequency substrate, satellite system, mobile telephone receiving base station and so on, these communication products must use high frequency PCB .

The features of Thick Copper PCB .

DK should be small and stable enough, usually the smaller the better, high DK may lead to signal transmission delay.

DF should be small, which mainly affect quality of signal transmission, the smaller DF could make smaller signal wastage accordingly.

The thermal expansivity should be the same with copper foil as much as possible, because the difference will lead to copper foil separated in the changes of cold and heat.

Water absorptivity must be low, high water absorptivity will affect DK and DF when in the wet environment.

Heat resisting property, chemistry resisting, impact endurance, peel off resisting must be good.

Materials used for HF circuit board.

High-frequency board for wireless applications and data rates in the upper GHz range have special demands on the material used:

Adapted permittivity.

Low attenuation for efficient signal transmission.

Homogeneous construction with low tolerances in insulation thickness and dielectric constant.

Generally speaking, high frequency can be defined as frequency above 1GHz. Currently, PTFE material is widely used in high frequency PCB China manufacturing, it's also called Teflon, which frequency is normally above 5GHz. In addition, FR4 or PPO substrate can be used to the product frequency among 1GHz~10GHz. These three high frequency substrate have below differences:

With regard to laminate cost of FR4, PPO and Teflon, FR4 is the cheapest one, while Teflon is the most expensive one. In terms of DK, DF, water absorption and frequency feature, Teflon is the best. When product application require frequency above 10GHz, only can we choose Teflon PCB substrate to manufacture. Obviously, the performance of Teflon is far better than other substrate, However, Teflon substrate has the disadvantage of high cost and large heat resisting property. In order to improve PTFE stiffness and heat resisting property function, a large number of SiO2 or fiber glass as the filling material. On the other hand, due to molecule inertia of PTFE material, which it is not easy to combine with copper foil, thus, it needs to do special surface treatment on the combination side. With regard to combination surface treatment, normally use chemical etching on PTFE surface or plasma etching to plus surface roughness or add one adhesive film between PTFE and copper foil, but these may have influence on dielectric performance.

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Company Profile

About PCBMain Technology Ltd

Membership Free member
Registration Date2019.12.27
Country/RegionChina
CityHangzhou
Contact caifang huang(Ms.)

Pcbmains responsibilities:
1. Protecting all data generated by and provided to us by our users from being stolen, compromised, or used in violation with this policy.
2. Never selling user-provided and user-generated data for financial gain or competitive advantage.
3. Providing transparency for our users into what data we collect and what we do with it including what access third parties have to user data and for what purpose.
4. Informing users if their data is compromised, either by failure to protect data or by order to surrender data to a legal authority, to the fullest extent we are lawfully able.

Selling Categories

- Electronic Components & Supplies >> Passive Components

Keywords

Cheap PCB Components , Aluminum Fr4 PCB

Registration Date	2019/12/27(Year/Month/Date)
Buyer / Seller in EC21	Seller
Business Type	Manufacturer
Year established	2011
Employees total	11 - 50
Annual revenue	USD 1,000,001 - 2,000,000

Contact Information Order Credit Report

Company	PCBMain Technology Ltd
Address	11th floor Hanyuan, Hejiayuan, Yang Mei Shan Road, XiHu DistrictHangzhouZhejiang310023China
Phone	86 - 0571 - 85109239
Fax	86 - 0571 - 85460972
Homepage	http://www.pcbmain.com
Contact	caifang huang

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