With the development of high-frequency electronic technology, high-frequency PCB boards are increasingly widely used in various electronic systems. Recognizing the importance of high-frequency PCB boards, understanding their characteristics, and paying attention to their application areas are important directions for current scientific and technological innovation and research and development
This article mainly focuses on the concepts and design principles of microwave-grade high-frequency circuits/microwave circuits and high-frequency PCB design in a cutting-edge field of communication products
In modern electronic equipment, high-frequency PCB boards are widely used and are also an indispensable part of many high-frequency devices. Most of them are used in applications with relatively strict requirements for high-frequency PCB boards .
High-frequency circuit boards refer to special PCB circuit boards with higher electromagnetic frequencies. They are used in high-frequency (frequency greater than 300MHZ or wavelength less than 1 meter) and microwave (frequency greater than 3GHZ or wavelength less than 0.1 meter) fields. They are produced on microwave substrate copper-clad boards using some processes of ordinary rigid circuit board manufacturing methods or using special processing methods. Generally speaking, high-frequency boards can be defined as circuit boards with frequencies above 1GHz.