source:Industry News release time:2022-07-11 Article author:yu Popular:pcb
High frequency: It is high frequency (VHF or UHF, SHF), and the unit is generally expressed in MHz (megahertz).
Microwave: The frequency of microwave is extremely high and the wavelength is very short. Its propagation characteristics in the air are similar to those of light waves, that is, it travels in a straight line, and it is reflected or blocked when it encounters obstacles. Therefore, the main method of microwave communication is line-of-sight communication. Relays are required after the line-of-sight is exceeded. It is used for microwave communication (Microwave Communication), which is communication using electromagnetic waves with wavelengths between 0.1 mm and 1 m - microwaves. Microwave communication does not require a solid medium, and microwave transmission can be used when there is no obstacle in the straight-line distance between two points. The use of microwave communication has large capacity, good quality and can be transmitted to a long distance, so it is an important communication method in the national communication network, and it is also widely used in various special communication networks. The L, S, C, and X frequency bands are widely used in microwave communication in my country, and the application of the K frequency band is still under development.
Radio frequency: Radio Frequency, referred to as RF. Radio frequency is radio frequency current, which is the abbreviation of high frequency alternating current electromagnetic wave. The alternating current that changes less than 1,000 times per second is called low-frequency current, and the one that changes more than 10,000 times is called high-frequency current, and radio frequency is such a high-frequency current. At present, the most widely used automatic identification technology can be roughly divided into two aspects: optical technology and radio technology. Among them, the commonly used products in optical technology are: barcode and camera. These two types of products have been widely used in people's daily life and are well known to people. For example, barcodes are used for commodity management, and cameras are used to capture illegal vehicles.
High frequency and radio frequency both refer to the frequency of electromagnetic waves. The difference is that high frequency is greater than 10K, and radio frequency is 300K-300G. High frequency electromagnetic waves are called radio frequencies.
Read recommendations:
Six-layer Immersion Gold Board (BGA)
Six-layer Immersion Gold Board (BGA)
Six-layer Immersion Gold Board (BGA)
Six-layer Immersion Gold Board (BGA)
High frequency circuit board application field.Aluminum electrolytic capacitor PCB
Popular recommended products
Computer card board (four layers)
2021-04-25Network communication board (sixth floor)
2021-04-29Six-layer Immersion Gold Board (BGA)
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-05-27High frequency PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-24Aluminum substrate (double-sided)
2021-04-27Silver oil perforated plate (double-sided)
2021-04-27Mobile phone template (six layers)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-24High frequency PCB
2021-04-27High frequency PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-27Laminate copper-based PCB after 4L (sample)
2021-04-27Display board (six layers)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27High frequency PCB
2021-04-27Single-sided double-layer AL base PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-27Single copper base PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-26Six-layer Immersion Gold Board (BGA)
2021-04-26Mobile phone board
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26SMT stickers
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26DIP plugin
2021-05-27SMT stickers
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26Mobile phone board
2021-04-27DIP plugin
2021-05-27Related Information
The relationship between PCB safety distance and voltage
2024-04-22SMT surface mount processing.Hybrid circuit board PCB
2024-04-15PCB enterprises should pay attention to SMT matters.Electronic components PCB
2024-04-03PCB - the core building block of electronic products.Automotive Electronics PCB
2024-03-25PCB - the bridge and link of the electronic world
2024-03-18How to define high-frequency and high-precision circuit boards.Industrial Electronics PCB
2024-03-11USB PCB interface layout and wiring requirements
2024-01-22Electrolytic capacitor PCB.Steps for using PCB pins
2024-01-15Automotive ElectronicWhat aspects should be considered when processing and manufacturing PCB boards?
2024-01-08Electrolytic capaciWhat is the difference between a gold-plated circuit board and a gold-plated one?
2023-12-25When grinding PCB boards, attention should be paid to.Oscillator (belonging to crystal) PCB
2023-12-18Industrial Electronics PCB!What precautions should be taken when copying and grinding PCB boards
2023-12-11Do you know who is more suitable for LED direct display, regarding the difference between PCB board
2023-12-05Aluminum electrolytic capacitor PCB.What are the standards for selecting PCB boards
2023-11-27Surface Mount Technology (SMT) Phase PCB
2023-11-20Oscillator (belonging to crystal) PCB.The main functions of PCB board
2023-11-13What is the difference between RO filter and PCB filter
2023-11-06Method for determining blind hole PCB board
2023-11-01Electronic Manufacturing Services PCB!What are the effects of PCB board color on performance?
2023-10-23Introduction to the Manufacturing Steps and Requirements of PCBA Test Stand
2023-10-16PCB version maturity stage.AOI circuit board price
2023-09-25How to maintain a PCB circuit board
2023-09-19Development Trend of Printed Circuit Board.Zener diode PCB Vendor
2023-09-14Common problems and cause analysis of PCB circuit board sampling.Zener diode PCB price
2023-09-08What are the issues that need to be understood in PCB circuit board design?IGBT module PCB factory
2023-09-08How to reduce the risk of bending and deformation in PCB circuit board production?Inverter PCB Produ
2023-08-16What are the three main factors that constitute welding defects in PCB circuit boards?Multilayer PCB
2023-08-16The structure of a glass teapot.LCD Module PCB factory
2023-08-11Glass teapot.Inverter PCB Processing
2023-08-11PCB online debugging
2023-08-08