Microwave waveguide for quantum voltage device and quantum voltage device
A microwave waveguide and quantum technology, used in waveguides, waveguide-type devices, circuits, etc., can solve the problems of not meeting the operating conditions of quantum superconducting chips, reducing the thermal conduction power of signal connection channels, and reducing the thermal conduction power of microwave channels. Quantity margin, reduce thermal power, good excitation and hold effect
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Embodiment 1
[0028] as Figure 1As shown, the present embodiment provides a microwave waveguide 6 for a quantum voltage apparatus, comprising: a waveguide flange (6-1); a brass waveguide (6-2), connected to the waveguide flange (6-1); a polytetrafluoroethylene strip (6-3), comprising a vertebral portion (6-4) and a cone portion located at both ends of the vertebral body portion (6-5), the taper portion is a taper tip structure, the vertebral portion is inserted within the brass waveguide.
[0029] The waveguide flange (6-1) can be a UG-387 / U flange. Brass waveguide (62) may be a WR-12 brass waveguide, which is 10cm in length, located at both ends of microwave waveguide 6, the upper end of which is used to connect with the waveguide flange of the quantum superconducting chip with screws, and the lower end is used to connect with the vacuum isolated waveguide flange.
[0030] Polytetrafluoroethylene strips (6-3), comprising a vertebral body portion (6-4) and a tapered portion located at both en...
Embodiment 2
[0036] as Figure 2 As shown, the present embodiment provides a quantum voltage apparatus in which the microwave waveguide proposed in Example I is fixed in the quantum voltage apparatus (6).
[0037] The ultra-low temperature structure of the electronic voltage device adopts a temperature insulation and vacuum structure, and the waveguide interface is reserved, and the quantum voltage device includes the following components:
[0038] Vacuum cover, the vacuum cover defines the vacuum chamber (1), to ensure that the interior is vacuum, the vacuum degree is better than 1E-3, fixed to the refrigerator by screws and other sealing technology, and a multi-layer insulation material is pasted inside it;
[0039] A first-level cold head (4), disposed in the vacuum chamber (1), the first-level cold head (4) is an inherent component of the refrigerator, providing a 40K temperature zone insulation area for the chip, and pre-cooling for the electrical signal cable;
[0040] Secondary cold scre...
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