In this project, we are using a 434 MHz RF Transmitter – Receiver pair. This module can be used for communication for distances up to 40 meters. Circuit Design Transmitter Part. The transmitter part ...

However, designing an RF transmitter chip that can achieve low power consumption and high efficiency is a challenging task, as it involves trade-offs between performance, reliability, and cost.

The transmitter consists of oscillator stage Q1 and modulator/buffer stage Q2. Q1 is biased via R1, R2, and R3. L1, C3, and C4 form the tank circuit with feedback network C3-C4 providing feedback to ...

The output power of this long range rf transmitter is around 1W but can be higher if you use transistors like KT920A, BLX65, BLY81, 2N3553, 2SC1970, 2SC1971. 1 watt fm transmitter A very good 1 watt ...

Ultra-low-power (ULP) short-range radios are the key enabler of a wide variety of Internet-of-Things (IoT) products such as wearable/ implantable healthcare monitoring. The small physical dimension of ...

This paper discusses our efforts in designing different low-power RF transceiver blocks, starting with the LNA and power amplifier (PA). The paper discusses the effect of four different input matching ...