We all know that since the reform and opening up, all industries have developed rapidly. Currently, battery-powered wireless communication systems consume a lot of power when the wireless device does not have to send or receive data, which means that most of the time, the Bluetooth or wireless LAN on the phone will also need to get from the battery when it is not functioning. energy. Taihangjinri will take you along next to understand its related content.

A new wireless transceiver architecture based on double sampling can overcome the 1/f noise problem, and 1/f noise can affect most low data rate wireless transceivers. Therefore, these transceivers traditionally have higher power budgets than high-data-rate devices, given the same performance. With the double sampling technique, the 1/f noise is reduced so that the sensitivity of the receiver can increase proportionally with the change in data rate.

The self-wake-up receiver chip is implemented using a 90-nm digital CMOS technology with a chip area of approximately 0.36 mm2. Measurements show that the 915 MHz receiver has a sensitivity of -75 dBm at 100 kbps (OOK) modulation. When the data rate drops to 10kbps and filters out-of-band noise, the sensitivity can be increased by 5dB. The sensitivity of the 2.4 GHz receiver is -64 dBm and -69 dBm, respectively, at 100 kbps and 10 kbps data rates.

Researchers stated that in the research of wireless autonomous sensor systems, wall-mounted DC panels are aimed at developing wireless sensor systems that can capture energy from the environment instead of using batteries. For digital signal processors, radios, and sensors, the power budget for such a system is only 100 microwatts. The successful development of only 51 micro-watt ultra-low-power wireless transceivers is a major step toward achieving this goal.

In short, DC screen manufacturers have indicated that no battery receiving tools will be introduced. We may wish to understand and in-depth study them so that we can develop it better and faster.