Microwave Tech - Sources of RF/Microwave Technical Blog page 13

2021-07-26

Based on the special physical and chemical properties of polytetrafluoroethylene board, the processing process is different from the traditional FR4 process. If the common epoxy glass fiber coppery clad plate is processed under the same conditions, there is no way to obtain the standard product.

2021-07-23

In general, the specific properties of circuit board materials have a great deal to do with the performance of the final circuit board (PCB), especially at RF/ Microwave frequencies. The parameters such as the dielectric constant (DK), the dissipation factor (DF), and even the thickness of the material can affect the performance of different transmission lines (such as microstrip lines, strip lines, coplanar waveguides) in high-frequency circuits.

2021-07-22

The latest figures, announced by Liu Liehong, vice minister of industry and information technology, at the China Progress 2020 high-level forum on November 11 evening, show that China has built nearly 700,000 base stations this year, which is more than double the total of 5G base stations in the world outside China. The number of co-signatories for 5G terminals in China has exceeded 180 million so far.

2021-07-21

High frequency microwave antennas and high frequency microwave antenna arrays are the "eyes and ears" of all wireless systems. According to the IEEE Standard (145-1983), an antenna can be defined simply as "a device for transmitting and receiving radio waves".

2021-07-20

The company is engaged in the printed circuit board in the electronic industry, belonging to the manufacturing industry, the products are single, double-sided and multi-layer circuit board, circuit board assembly products, electronic equipment used wire and connectors, etc. Since its establishment, the company has been focusing on the production, sales and related after-sales service of all kinds of printed circuit boards. In the fierce market competition, the company has formed competitive advantages in technology, quality, cost, brand, scale and other aspects, ranking the leading position in the industry.

2021-07-19

High frequency and high speed board is the main material in telecommunication industry the telecommunications industry is looking forward to building a future in which co-signers are ubiquitous and truly connected to each other. To successfully achieve this goal, operators will continue to accelerate the rollout and expansion of 5G networks worldwide in 2021.

2021-07-17

The thin film circuit process of integrated circuits mainly used in the field of microwave and millimeter waves and other high-frequency circuits is the use of vacuum evaporation,

2021-07-17

With the continuous development of science and technology, especially information technology, the production of printed circuit board technology corresponding growth, to meet the needs of different users. In recent years, communication, transportation and other fields of development is very rapid, the need for printed boards has changed a little, the demand for high-power printed circuit boards, high frequency microwave board increased.

2021-07-16

Microstrip receiving antenna is a new type of receiving antenna which emerged in the 1970s. As early as 1953, Deschamps proposed the concept of making microstrip receiving antenna by using the radiation principle of microstrip line. It was not until the theoretical plate of microstrip transmission and the development of lithography on copper-coated media substrates that Munson and Howell et al. developed the first batch of practical microstrip receiving antennas.

2021-07-15

High Frequency printed circuit board (PCB) is a key building block for RF/microwave circuits -- essentially the starting point for these circuits. PCB materials come in many different forms, and the choice of material is largely dependent on the requirements of the intended application.

2021-07-14

If you have the opportunity to pick up a piece of circuit board, a little look will find it has many large and small hol...

2021-07-13

With the rapid development of science and technology, more and more equipment is designed in the microwave frequency band (> 1GHz) or even with the millimeter wave field (30GHz) above the application, which also means that the frequency is getting higher and higher, the requirements for the substrate of the circuit board are also getting higher and higher.

2021-07-12

Microwave High-Frequency PCB aircraft hf antenna Layout--Boeing 737NG Airplane

2021-07-08

FEKO has gained a good reputation in antenna layout, becoming a standard EMC/EMI simulation tool for antenna layout in vehicles, aircraft, satellites, ships, cellular base stations, towers, buildings and other places.

2021-07-07

The rapid development of automotive millimeter wave radar sensors and the iterative update of technology also make drivi...

2021-07-01

Bonding sheet (prepreg) is one of the important materials in the manufacturing process of Multi-layer PCB. Rogers' thermosetting and thermoplastic high-performance bonding layer has a low Z-axis expansion coefficient, which reduces the risk of metallized through-hole plating.

2021-07-01

In the application of high-frequency multilayer PCB, the use of different bonding materials has different effects on the electrical properties of the material, and the material formula used to bond the high-frequency multilayer PCB film may also be very different.

2021-07-01

The design and processing history of microwave high frequency PCB multilayers, the first product of ROGERS-the thermoplastic adhesive film 3001, realizes the multilayer manufacturing of RT/duroid 6002PTFE ceramics.

2021-06-30

Satellite communication systems require PCB materials to maintain excellent performance and high reliability in harsh environments and in orbit operation. Few PCB materials can meet the demanding and challenging requirements of satellite systems, and only those PCB materials with special characteristics can be competent.

2020-10-05

When the transition of FR-4 PCB materials to higher performance materials is usually not as simple as people can imagine. When the transition is obvious, many unexpected problems may need to be solved. Some of these problems may be related to circuit design, others may be related to PCB manufacturing process.