I would like to ask the experts, how to learn the high-frequency electronic circuit course? I want to work in this field in the future.

焊工老王

I would like to ask the experts, how to learn the high-frequency electronic circuit course? I want to work in this field in the future. [Copy link]

I worked on high-frequency communication problems in an electronics competition for a year and found it very interesting, although some of the bugs were very confusing. But when the teacher taught this course, the teacher only knew how to explain the conclusions and gave us questions to do. A lot of the things he said didn't sound reliable, such as saying that you only need to know the conclusions and you don't need to understand the derivations. Based on my experience in electronics competitions, the instructor often only gives an idea, and in the end you have to solve the problem by yourself. If you can't thoroughly understand the conclusions, many bugs can't be found at all. The result of only knowing the conclusions is that you have no debugging ideas.

For example, he often said that the integrated chips we use now will have data manuals for integrated chips in the future, and we just need to follow the manual and simply understand XXXX. In fact, our two generations of people plus three teachers in the Electronic Competition Laboratory have not perfectly solved the problems of antennas and integrated amplifiers. The amplifier works according to the manual, but it often suddenly works abnormally (unless the input voltage is very small, far less than the number given in the data manual), and then we can only replace the chip, or the second harmonic of the signal received by the receiving end is very large, even larger than the original signal. There are so many things, it feels that it is not a simple matter of knowing the conclusions in the textbook to solve these problems. Even solving these problems is not something that this book can explain. What I can be sure of is that if you don’t understand the derivation principle of discrete components at all, just memorizing the conclusions, debugging is GG

My overall feeling is that the teacher may not have actually done any engineering work and is very unreliable.

Can you guys give me some advice? I am currently self-studying, watching online courses and textbooks from Xidian University, and I am learning slowly.