RF is the abbreviation of high-frequency alternating electromagnetic waves. According to Maxwell’s theory of electromagnetic fields, an oscillating electric field produces an oscillating magnetic field, and an oscillating magnetic field produces an oscillating electric field. Electromagnetic fields propagate outward in space, forming electromagnetic waves. gps pcb antenna
RF PCB: A high-frequency PCB made of polytetrafluoroethylene (PTFE PCB), ceramic-filled fluoropolymer, or ceramic-filled hydrocarbon thermoset with improved dielectric properties. The material has a low dielectric constant of 2.0-3.8, a low loss factor, and excellent low-loss characteristics, but also has good properties, a high glass transition temperature, very low hydrophilicity, and excellent thermal stability. The coefficient of expansion of PTFE PCB materials is similar to that of copper, giving the material excellent dimensional stability.
Typically, radio frequency (RF) is a collective term for electromagnetic waves with oscillation frequencies between 300KHZ-300GHz and is widely used in radar and wireless communications.
Applications of RF Microwave PCBs
The classic uses of RF/microwave circuits are communication and radar systems.
The most rapid development in recent years is the personal communication system, of course, navigation, remote sensing, scientific research, biomedical, and microwave energy applications also occupy a large market share.
(1) wireless communication systems: space communications, long-distance communications, wireless intercom, cellular mobile, personal communication systems, wireless local area networks, satellite communications, aeronautical communications, marine communications, locomotive communications, amateur radio side
(2) Navigation systems: microwave landing system (MLS), GPS, wireless beacons, collision avoidance systems, aviation, marine autopilot, etc. gps pcb antenna
(3) broadcasting systems: amplitude modulation (AM), frequency modulation (FM) radio, television (TV), and so on.
(4) Wireless power transmission: air-to-air, ground-to-air, air-to-ground, ground-to-ground transmission of electricity.
(5) Medical applications: magnetic resonance imaging, microwave imaging, microwave therapy, heating catalyst, ward supervision.
(6) radio frequency identification: security, anti-theft, access control, product inspection, identification, automatic ticket inspection, etc.
(7) Remote sensing: Earth monitoring, pollution monitoring, forests, farmland, fish flood monitoring, mineral deposits, deserts, oceans, water resources monitoring, wind, snow, ice, ice monitoring, urban development, and planning.
(8) Automobile and highway: automatic yield avoidance, road warning, obstacle monitoring, road-vehicle communication, traffic management, speed measurement, intelligent highway, etc. Sensors: humidity sensors, temperature sensors, length sensors, ground probing sensors, robotic sensors, etc. Electronic warfare systems: spy satellites, radiation signal monitoring, marching, and blocking.
(9) Space research: radio telescopes, outer space exploration, etc.