Abstract - Radio Frequency Identification (RFID) applications require cheap, simple, and low-power radios. These systems are typically battery-less and utilize backscatter technology to eliminate the need for power-hungry transmitters. The use of UHF RFID systems is widespread. These systems often rely on expensive, proprietary equipment, primarily due to limited production volumes. To significantly reduce costs and allow easy integration with the Internet of Things (IoT), RFID systems should leverage commodity equipment. With WiFi infrastructure readily available in many settings, RFID systems can be cost-effectively connected directly to the internet. RFID WiFi systems using backscatter technology typically enable short-range, high-data-rate transmission.  On the other hand, LoRa is a robust protocol that utilizes Chirp Spread Spectrum (CSS) modulation to increase communication distance at the expense of reducing data rate. The development of such technologies presents several challenges, including the harvesting of RF power from the 2.45 GHz frequency band for WiFi and 915 MHz (North America) for LoRa and the development of RF integrated circuits with a power consumption of a few tens of microwatts. In this presentation, I will describe WiFi and LoRa backscatter technology, explore ongoing research opportunities, and propose solutions to overcome the challenges in developing efficient, low-power integrated circuits for such technologies.