Design of Miniaturized Electric Field Enhancement Structure for Shortwave Application based on Atomic Receiver

Atomic receiver system based on Rydberg atoms is expected to achieve breakthroughs in the frequency range and sensitivity of electric field measurements. A miniaturized electric field enhancement structure, which can be utilized for electric field sensing of Rydberg atoms in the shortwave band (3-30 MHz), is proposed in this paper. It can achieve an extremely small electric dimension (0.0054 λ × 0.0054 λ × 0.0006 λ) and provides an electric field enhancement factor of 77.5 dB at 10.4 MHz. With this miniaturized electric field enhancement structure, the sensitivity of the atomic receiver systems in the shortwave band can be significantly enhanced, thereby facilitating precision measurements at ultra-small electrical dimensions.