High frequency PCB is a special circuit board with high electromagnetic frequency. Generally speaking, high frequency can be defined as frequency above 1GHz. Its physical properties, precision, technical parameters requirements are very high, commonly used in automotive anti-collision systems, satellite systems, radio systems and other fields.
Wireless infrastructure needs to provide enough low insertion loss to effectively improve energy utilization. With the advent of 4G services, RF products need to provide wider bandwidth and be compatible with 3G and 2G services. At the same time, the base station becomes smaller and lighter, and is installed on the top of the tower, which also promotes the development of miniaturization of circuit boards. In handheld devices such as tablet computers, many manufacturers are looking for materials that can make antennas smaller.
Handheld devices contain a lot of antennas (Bluetooth, Wi Fi, cellular communications, GPS, etc.), which are installed in a small space and cannot interfere with each other. At the same time, each company's antenna design is different and needs to be flexible. This puts forward a very high demand for circuit board materials.