• 2020.07.18

What is High Frequency PCB? Just as its name implies, high frequency is that the frequency is relatively high, generally refers to the frequency of >=300 MHz (i.e. wave length <=1m), that is, the usual radio frequency band. The electromagnetic wave of frequency >=1GHz is called microwave. Typical frequencies for wireless applications: * Current mobile: 0.9GHz - 2GHz * 3G systems: 2.5GHz *...

• March 31. 2022

1. An uWB monopole antenna based on four-layer printed circuit board (PCB) is designed based on the method of resonance of multiple radiating patches in different frequency bands. The antenna is fed by microstrip and has two patches of different sizes on two different planes of the dielectric substrate. In order to realize the miniaturization of the antenna, a multilayer uwb monopole antenna with ...

• April 22. 2022

Generally speaking, high frequency can be defined as the pre-rate above 1GHz. The most commonly used high-frequency circuit board substrates are fluorine-based dielectric substrates. For example, polytetrafluoroethylene (PTFE) is usually called Teflon, which is usually used above 5GHz. , In addition, FR-4 or PPO substrate is also used, which can be used for products between 1GHz-10GHz. The physica...

• May 11. 2022

Basic knowledge of FPC flexible circuit board With the continuous increase of the production ratio of soft PCB and the application and promotion of rigid flexible PCB, it is now more common to add soft, rigid or rigid flexible PCB to say how many layers of FPC it is. Generally, FPC made of soft insulating material is called soft FPC or flexible FPC, rigid flexible compound PCB called rigid flexibl...

• June 15. 2022

The FR4 and the Mixing of Rogers Substrate Parameters and Normal Thickness 1. FR-4 substrate parameter classification: dielectric constant parameter, dielectric loss parameter, IG value parameter FR-4 susbstrate is made of epoxy resin + glass cloth pressed into a double-sided FR4 PCB board, - commonly used FR4 copper-coated plate, relative to the air dielectric constant is 4.2-4.7. This permittivi...

• July 13. 2022

What's the Difference between High-Frequency Microwave PCBs and Aluminum-based PCBs? 1. Let’s talk about high-frequency microwave printed circuit boards first High-frequency microwave printed circuit boardsare heating up in China. In recent years, many printed circuit board companies in East China, North China, and the Pearl River Delta have been staring at the market of high-frequency microwave b...