Why is 5g the era of IoT?
As many technology giants and operators rush to the 5G market, we can’t help wondering how 5G will embrace and change our existing technology ecology?
In this regard, some netizens said that 5g replaced 4G, which can greatly improve the communication […]
Meng Wanzhou Served As The Chairman of Huawei
According to the latest information on Huawei’s official website, Meng Wanzhou, Huawei’s CFO, served as the rotating chairman.
According to Huawei’s official website, Huawei implements collective leadership at the management level, and the board of directors is the highest responsible organization […]
ZTE Ended Its Seven-year “Probation” and Completely Got Rid of The Shadow of US Sanctions
On March 23, ZTE announced this morning that it plans to disclose major matters, so the trading will be temporarily suspended from the opening of the market on March 23, 2022. Then at noon today, ZTE released insider information and […]
RF Test Probes | Test Probers
Radio Frequency (RF) probe plays an important role in almost every stage of an RF product life cycle: from technology development, model parameter extraction, design verification, and debugging to small-scale production tests and final production tests. By using RF probes, […]
700MHz Spectrum for 5G
In April 2020, the Ministry of industry and information technology of China issued the notice on adjusting the frequency use planning of the 700MHz frequency band, which pointed out that the frequency use planning of the 702-798MHz frequency band was […]
PIM For RF Passive Products
Basic Concepts of PIM
The generation mechanism of Passive Intermodulation (PIM) caused by contact nonlinearity includes the following seven aspects:
(1) Mechanical effects caused by point contact on the joint surface;
(2) Electronic effect caused by point electron contact;
(3) Thermal effect caused by […]
Detail Specification of RF Antenna
1. Working frequency band
The antenna always works in a certain frequency range (bandwidth), which depends on the requirements of the index. The frequency range meet the index requirements is the working frequency of the antenna. Various wireless systems are […]
RF Power Amplifier (RF PA)
Basic concepts of RF Power Amplifier
Radio frequency power amplifier (RF PA) is the main part of the transmission system, and its importance is self-evident. In the transmitter’s forward circuit, the RF signal generated by the modulation oscillating circuit is very […]
What Is Antenna Pattern?
What is Antenna Pattern?
Antenna pattern is also called radiation pattern and far-field pattern. The antenna gain cannot be obtained from the pattern, but the direction coefficient is obtained from the pattern. Antenna gain = directional coefficient * antenna efficiency. […]