Weak Radio Frequency Signal Detection Based on Piezo-Opto-Electro-Mechanical System: Architecture Design and Sensitivity Prediction

Abstract

We propose a novel radio-frequency (RF) receiving architecture based on micro-electro-mechanical system (MEMS) and optical coherent detection module. The architecture converts the received electrical signal into mechanical vibration through the piezoelectric effect and adopts an optical detection module to detect the mechanical vibration. We analyze the response function of piezoelectric film to an RF signal, the noise limited sensitivity of the optical detection module and the system transfer function in the frequency domain. Finally, we adopt simple on-off keying (OOK) modulation with bandwidth 1 kHz and carrier frequency 1 GHz, to numerically evaluate the detection sensitivity. The result shows that, considering the main noise sources in wireless channel and circuits, the signal detection sensitivity can reach around -160 dBm with a 50 $\Omega$ impedance. Such sensitivity significantly outperforms that of the currently deployed Long Term Evolution (LTE) system, when normalizing the transmission bandwidth also to 1 kHz.

arXiv comment15 pages, 16 figures, 6 tables

References in corpus (13)

• Cavity Optomechanics
• Observation of strong coupling between a micromechanical resonator and an optical cavity field
• Quantum-coherent coupling of a mechanical oscillator to an optical cavity mode
• Circuit cavity electromechanics in the strong coupling regime
• Optical detection of radio waves through a nanomechanical transducer
• Using interference for high fidelity quantum state transfer in optomechanics
• Proposal for an Optomechanical Traveling Wave Phonon-Photon Translator
• Adiabatic State Conversion and Pulse Transmission in Optomechanical Systems
• Reversible optical to microwave quantum interface
• From Cavity Electromechanics to Cavity Optomechanics
• Microwave cavity-enhanced transduction for plug and play nanomechanics at room temperature
• Laser cooling and optical detection of excitations in a LC electrical circuit
• Cavity piezomechanical strong coupling and frequency conversion on an aluminum nitride chip