Simultaneous Multi-Band Demodulation Using a Rydberg Atomic Sensor

TL;DR

This paper demonstrates a Rydberg atomic sensor capable of simultaneously demodulating and detecting multiple radio-frequency tones across a broad frequency range, enabling multi-band digital communication.

Contribution

It introduces a method for multi-band RF signal demodulation using Rydberg atoms, covering nearly two decades of frequency with continuous phase and amplitude recovery.

Findings

Successfully demodulated five RF tones spanning 1.7 GHz to 116 GHz.

Achieved simultaneous detection of on-off-keyed binary data from four bands.

Showed the sensor's high sensitivity and broad bandwidth capabilities.

Abstract

Electric field sensors based on Rydberg atoms offer unique capabilities, relative to traditional sensors, for detecting radio-frequency signals. In this work, we demonstrate simultaneous demodulation and detection of five rf tones spanning nearly two decades (6 octaves), from 1.7 GHz to 116 GHz. We show continuous recovery of the phase and amplitude of each tone and report on the system's sensitivity and bandwidth capabilities for multi-band detection. We use these capabilities to demonstrate a digital communication protocol, simultaneously receiving on-off-keyed binary data from four bands spanning over one decade of frequency.