2020-09-14

In a wireless communication system, only a small part of the front-end circuit works in the RF stage, which is commonly known as RF front-end circuit. The rest of the circuit is for low-frequency baseband analog and digital signal processing

2020-09-14

Power line is an important way for EMI in and out of the circuit. Through the power line, the external interference can be transmitted into the internal circuit and affect the RF circuit index.

2020-09-14

1. RF circuit layout principle,In the design of RF PCB​ layout, the following general principles must be given priority to:

2020-09-14

If the analog circuit (RF circuit) and digital circuit work separately, they may work well. However, once they are put on the same board and work together with the same power supply, the whole system is likely to be unstable.

2020-09-14

PCB high-frequency PCB refers to the special circuit board with high electromagnetic frequency, which is used in the fields of high frequency (frequency greater than 300MHz or wavelength less than 1m) and microwave (frequency greater than 3GHz or wavelength less than 0.1M).

2020-09-14

Although good schematics do not guarantee good wiring, good wiring begins with good schematics. When drawing the schematic diagram, it is necessary to consider the signal flow direction of the whole circuit.

2019-09-02

The PCB​ dimension of the drillings specified by the designer represent the final dimension from a manufacturers point of view.

2019-08-02

The FAQ of purchasing PCB? Frequently asked questions answer.