The Bluetooth transmitter chip [lavender, right] is connected to a magnetic monopole antenna [green, far right], which acts as an integral part of the transmitter’s resonator circuit. The left half of the circuit board is only for test purposes. You’re probably swimming in Bluetooth radio signals right now. But none of those are coming from …
TEENY-TINY BLUETOOTH TRANSMITTER RUNS ON LESS THAN 1 MW Read More »
View this project on my website to see a circuit simulation and a video! Acoustic levitation is made possible through the fact that sound behaves as a wave. When two sound waves intersect each other, they can either constructively or destructively interfere with each other. (This is how noise-cancelling headphones work) This project uses an ultrasonic distance …
Fitting transmit and receive capabilities of radio signals into one device may be impossible without using a significant filter, which is needed to isolate sent and received signals from each other. The major obstacle to achieve that is the weakness of the received signal compared with the much stronger transmitted signal. However, researchers from Cornell …
