The specific work content of RF engineers Now engineers related to microwave and RF technology are divided into several names in the field of human resources, and generally the work content of RF engineers they need can be seen from the names. For example, a post is a microwave engineer or a radio frequency engineer, and this company is engaged in communication equipment, so the work content should be the design of unit circuits and circuit systems such as low noise amplifiers, frequency synthesizers, mixers, small signal power amplifiers, etc. If a position is RF engineer and this company is engaged in RFID, then either microstrip antenna and power amplifier, low noise amplifier and frequency synthesizer (high frequency band above 900MHz) or electric field antenna and power amplifier (low frequency band below 30MHz) are designed; Others, such as mobile phone companies, are specialized mobile phone RF engineers. 1. Circuit system analysis. In some projects of communication equipment company, RF engineers need to be responsible for the system analysis of the whole RF system, guide the system design indicators, allocate unit module indicators, standardize EMC design principles, and put forward the function and performance requirements of accessories. 4. Software simulation, whether it is ADS, MWO, Ansoft, CST or HFSS, you will use one or two simulation software anyway. Simulation software can't make your design 100% accurate, but it will never make your design deviate from the basic direction, at least they are accurate in qualitative simulation. So you must learn to use one or more simulation software. Its basic function is to enable you to qualitatively analyze your design. There will always be mistakes, but it can enhance your confidence. 5.PCB layout, the principle is the same as the theoretical basis. Ten thousand applications can be based on only one theory, and several products may have only one schematic diagram. As long as its wiring is different, just like a mobile phone. Many companies design the same mobile phone scheme, and the schematic diagram is the same, but the PCB layout of different companies is different, one is different in appearance, and the other is different in performance. The difference in performance is actually the difference in PCB layout. Meet the requirements of PCB layout and wiring, taking into account performance, appearance, technology, EMC and many other aspects. So PCB layout is also a very important skill. 6. Debugging analysis, this debugging is different from production debugging. Production debugging is mandatory, and the debugging of R&D products focuses on finding and solving problems. Debugging is a process of summing up and accumulating experience, not to say accumulating debugging experience through debugging, but accumulating design experience through debugging; Many problems may not be found in the design, so you will know how to avoid these problems after debugging and how to improve them in the future. Debugging is also the most effective way to practice theory, and theoretical knowledge can be qualitatively understood through debugging process. 7. Testing, in fact, testing is for debugging and debugging is for design (design is for the market). RF engineers must be proficient in using various RF test instruments, whether it is spectrum analyzer, network analyzer, signal source, oscilloscope, power meter, noise figure tester, comprehensive tester, etc. If you can't test, it's difficult to debug effectively. How to improve if you can't find the problem? So don't underestimate the testing technology. In fact, looking at foreign RF enterprises, the real masters have turned from design to testing technology, and the reasons for this are worthy of our consideration. 8. If possible, please do more work, do more grass-roots work, and weld yourself if possible. When you can't debug, why not find someone to stay by your side and change your capacitance and inductance? So, don't look down on welding, have the ability to weld yourself! The first day of social work is not the first day of your success, but the first day of your real study of textbooks and test of classroom knowledge. Many friends want to work in good companies and departments immediately after graduation. People who choose a good company at least want to work in the development department. It doesn't matter if you enter the R&D department. Many friends would rather do research as soon as they come, stay in front of the computer all day, look for information online, or draw two schematic diagrams for layout engineers to draw boards, and write two articles for publication in their spare time. In fact, this has entered a misunderstanding from the beginning. This is why many technicians with many years of work experience walk out of a company, only to find that they know little, or that they are completely technical hooligans in the eyes of others. Why, they forget that the essence of technology lies in practice. Therefore, people who do technical work should not despise technicians who stay in the laboratory all day, and should not think that they are superior to their colleagues who stay in front of the computer. In fact, fundamentally speaking, they are the real technicians who can experience theoretical knowledge in practice. For engineers who have just entered the RF field, they should first be a laboratory technician, that is, modest and low-key; Whether it is a product designed by others or a product designed by yourself, each resistor, capacitor and inductor should know its function and the meaning of each line should be clear. It is necessary to know why it is used and why it is routed like this. Don't be too technical, don't talk about experience, be practical. It's not that experience is wrong, but if you really want to make progress, you must understand that if you explain everything with experience, you will never make progress at all. Do more, do what you can, and how can you talk about practice without doing it? 1. Hearing this, many friends are unhappy. Learning one thing is to understand it. Why should I want nothing? Of course, if you are really gifted and can understand RF things, microwave equations, electromagnetic fields and electromagnetic waves at a glance, it is definitely not for you (maybe you are already a master of RF). If we are all ordinary people, then in my opinion, it is also a very good way not to ask too much understanding. Why? Let me explain what I mean by not seeking a solution first. First of all, if you don't ask for an answer, you should jump over where you don't understand at the moment, and don't drill a dead end. There are really many scientists in the world who get into a corner and drill out some scientists. If you don't want to be an old pedant wearing 1000-degree myopia glasses, if you want to be a practical engineer, I suggest you don't ask too much, just skip what you don't understand at the moment and don't get bogged down. The advantage of this is that you will read more and more, and get more and more contacts, just like reading a book. You can't understand the question in the first section. If you must ask for an answer, you may only read the first section a year, but you still don't understand that question. And if you don't understand the question in the first section and it's not appropriate to ask people, then put it down and watch the second section, so that you can watch two sections, but you only understand one question. Very often, in the later chapters, you will probably solve the content that you couldn't understand before. So to put it bluntly, the requirement of not seeking a solution is not to drill too much, but to win by quantity. 2. the laboratory. Laboratory. This is not a slogan, but a real sigh. I have never heard that you can learn microwave and RF well without going into the laboratory. Why are you in the lab? I don't want you to do general compulsory experiments, but I want you to do some research and development experiments. What is an R&D experiment? First of all, testing is not an experiment, and it is not an experiment without testing. The research and development experiment is to verify different design methods and results as planned, and testing is its means (so I know the instrument). Many people also go to the laboratory, but they can understand the same product one hundred times a day without summarizing, analyzing and making progress. For example, an antenna matching circuit, you can test and analyze its different effects on the total radiation power and omnidirectional receiving sensitivity through different matching methods, and you will know what the future antenna will look like and what the relatively suitable matching form is, without trying one by one. 3. Work notes, maybe few people will take work notes now. Anyway, I used to like taking work notes. Even if the same phenomenon and conclusion appear 10 thousand times, if you don't keep records, it's hard to say that you have become yourself. Can writing be your own? Yes, I'm sure it did. It became your own. At least when you need evidence, you can show it and explain it. When you don't know how to prove a phenomenon, you can pick it up and prove it. How to take work notes? It's not like keeping a diary. An actual work note may be used as a data record book, or a comparative record of formulas and data, or a record of some experimental methods, or a comparative result of different design schemes, or your understanding and summary of some theories, or your record of some cases, or. Anyway, many of them are still, by the way, pay attention to the illustrations. Yes, you should take notes on your work. You have to.