Table 1 Performance comparisons of Rydberg atom-based electric field measurement enhancement using resonators. Ref.: reference, \(f_{0}\): center frequency, ES: electrical size, EF: enhancement factor, S: sensitivity
Ref. | \(f_{0}\) | LO port | S11 | ES | EF | S |
|---|---|---|---|---|---|---|
4.35 GHz | No | no mention | 0.435 λ | 24 dB | no mention | |
[29] | 1.309 GHz | No | no mention | 0.096 λ | 40 dB | 5.5 \(\mu \text{V}/\text{cm}/\sqrt {\text{Hz}}\) |
[30] | 19.629 GHz | Yes | no mention | 3.273 λ | 7.9 dB | no mention |
[34] | 0.638 GHz | Yes | −0.1 dB | 0.342 λ | 34 dB | 854 \(n \text{V}/\text{cm}/\sqrt {\text{Hz}}\) |
This work | 0.946 GHz | Yes | −38.2 dB | 0.088 λ | 32 dB | 213 \(n \text{V}/\text{cm}/\sqrt {\text{Hz}}\) |