A tunable filter which may include at least one resonator. The at least one resonator may comprise a ring resonator made on a dielectric substrate placed in a waveguide, wherein the waveguide may contain a cut-off portion which houses and shields at least one resonator containing at least one tunable capacitor therein. A DC Bias circuit may be connected to the at least one resonator and may be capable of providing DC bias to the at least one tunable capacitor.

 
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< Pro1017 polypeptides

< PRO788 nucleic acids

> Method for purification of as-produced single-wall carbon nanotubes

> Method for cutting single-wall carbon nanotubes

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