In wireless communication devices, phase and amplitude distortion caused by power amplifiers significantly affects the quality of the transmitted signal. In modern communication systems, one of the most critical metrics for evaluating power amplifier performance is the Error Vector Magnitude (EVM). […]
In wireless communication systems, phase and amplitude distortions caused by power amplifiers significantly affect the quality of signal transmission. To evaluate the performance of these amplifiers, one of the most critical metrics used in modern communication protocols is the Error Vector Magnitud[…]
A few days ago, some media outlets reported that many intermediate rental rooms in Beijing were found to have excessive formaldehyde levels. Most of these rooms were rented out shortly after renovation, with little or no proper ventilation. This issue has raised serious concerns about the health ris[…]
A few days ago, some media outlets reported that many intermediary rental rooms in Beijing have high levels of formaldehyde. Most of these rooms are rented out shortly after renovation, with little to no proper ventilation. This poses a serious health risk to tenants who may not even be aware of the[…]
The term "Internet of Things" (IoT) was first introduced by the Massachusetts Institute of Technology (MIT). It refers to a vast network that connects various information-sensing devices, such as radio frequency identification (RFID) tags, infrared sensors, global positioning systems (GPS), and lase[…]
LEDs are solid-state semiconductor devices that directly convert electrical energy into light. As one of the most popular types of LED lighting, understanding the parameters of an LED lamp bead is essential for both users and manufacturers. This article provides a comprehensive overview of LED lamp […]
LEDs are solid-state semiconductor devices that convert electrical energy directly into light. As one of the most popular lighting solutions today, understanding the parameters of LED lamp beads is essential for both users and manufacturers. This article provides a comprehensive overview of LED lamp[…]