With the arrival of the 5G era, the first 5G product that people use is mobile phones.
Related to mobile phones is the installation rate of 5G antennas and 5G base stations to ensure 5G signal coverage.
In the future, there will be more and more 5G-related products, and PCBs for 5G are the basis of hardware and play a very important role.
Since the popularization of 5G, PCB products for 5G have been produced, and they have a deep understanding and knowledge of the precise control of signal lines implementing 5G.
We know the importance of material selection, line etching precision, and impedance control precision.

Application	5G Base station antenna
Matarial	PTFE
Board Thickness	0.85mm
Layers	2 layers
Surface finished	Iemmrsion Tin (1.0um)
Copper thickness	1/2 OZ

Application	5G Communication
Matarial	Hydrocarbon Glass & Ceramic Filler
Board Thickness	0.95mm
Layers	2 layers
Surface finished	Iemmrsion Tin (0.5um)
Copper thickness	1.0 OZ

① The dielectric constant (Dk) should be small enough and stable enough, and the smaller it is in general, the more stable it is.Good and high dielectric constants can cause signal transmission delays

② Dielectric loss (Df) should be small, which primarily affects signal quality. Therefore, the smaller the dielectric loss, the smaller the signal waste.

③ The thermal expansion rate should be as much as possible as copper foil, and the difference is temperature change. This is because copper foil is separated according to .

④ The water absorption rate should be low, and the high water absorption rate should be a dielectric constant in humid environments. and affect dielectric loss.

⑤ Heat resistance, chemical resistance, shock resistance, peel resistance should be good.