Ultra-Low Power Edge Combining BPSK Transmitter.

摘要

There is a growing need in the armed forces for small, low-profile electronic devices that can easily be concealed and/or worn in clothing. These tiny devices can be worn by warfighters to monitor their health status as well as their location and any other sensor data that are desired. The data would be transmitted to a remote device, but the conventional transmitter suffers from high power consumption. In this paper, we propose two versions of ultra-low power binary phase-shift keying (BPSK) transmitters employing injection-locking frequency multiplication for near field (approx. 2 m) communication. The power consumption of the proposed transmitters is ranges from 90 to 125 microwatts with the target data rate of 120 kbps. We intend to achieve this by choosing a design that does not require a power-hungry oscillator and employing a power-efficient transmitter architecture. The custom transmitter will be designed by addressing the trade-offs between phase noise performance, output power, and the bit-rate for power consumption.