There are several devices which are described by resonators of the form
Here x is the ratio of the frequency to the resonant frequency for this resonator. Table 2 summarizes the parameters for such impedances.
| Device | | Q | | |
| Shielded bellows (total for 3000) | 2.8 GHz | 3.5 | 5.7 M | 85 m |
| Monitor tanks (total for 500) | 6 GHz | 1 | 1.17 M | 172.8 m |