This article will be divided into three parts to explain the definition of antenna isolation, several key factors affecting antenna isolation, and how to improve the isolation of terminal antennas. I
With the development of wireless communication technology and the improvement of data processing capabilities, location-based services have become one of the most promising Internet services. Whether
[b][size=4]Definition of Pink Circle[/size][/b] [size=4] Pink circle refers to the inner copper layer of the circuit board being separated and corroded by chemical liquid, so that the blackening treat
[size=4]After receiving the board, how can I not power it up and run it? [/size]:pleased: [size=4]Connect the board to the computer, [/size][size=4]the led flashes for a while and then stays on [/size
As shown in the figure, the RLC series resonance simulated by Multisim software, XFG1 is a signal generator, which generates a 61KHZ square wave with an amplitude of 5V and a peak-to-peak value of 10V