Waveguide hinges are provided that allow for a substantially continuous RF waveguide to be formed through the hinge when the hinge elements are in a particular relative rotational configuration with respect to one another; the substantially continuous RF waveguide is not formed when the hinge elements are in various other relative rotational configurations. Such waveguide hinges allow for waveguide elements to be repositioned during periods when RF energy is not being transmitted.

Embodiments of the invention include waveguide switch rotors, stators, waveguide switch housings and meander clamping mechanisms. Embodiments of a meander clamping mechanism may be used to connect arbitrary objects to one another. A meander clamping mechanism is particularly useful for connecting a rotor to a motor shaft and also for securing a bearing between a stator and rotor.

A MEMS switch, a preparation method thereof, and an electronic apparatus. The MEMS switch includes: a substrate, a coplanar waveguide line structure disposed on a side of the substrate, an isolation structure disposed on a side of the coplanar waveguide line structure away from the substrate, a film bridge disposed on a side of the isolation structure away from the substrate. The coplanar waveguide line structure includes a first wire, a first DC bias line, a second wire, a second DC bias line and a third wire arranged at intervals sequentially. The second wire is one of an RF signal transmission line and a ground line, the first wire and the third wire are the other of the RF signal transmission line and the ground line. The film bridge is crossed between the first wire and third wire, and is connected with the first wire and the third wire respectively.

Provided is a high-frequency switching device that conducts or blocks a signal transmission path between an antenna connection port, which is connected to an antenna to transmit and receive high-frequency signals, and an input/output port configured to input and output high-frequency signals. The high-frequency switching device includes a plurality of switch modules. Each of the plurality of switch modules includes a series switch and a shunt switch and has a T-type switch connection structure in which the shunt switch is branched from a node of the series switch. An impedance element for maintaining the antenna at a predetermined impedance is connected between the shunt switch and the ground terminal.

The present disclosure provides a tunable waveguide attenuator comprising a base structure with a bottom wall, a first side wall, and a second side wall, wherein the first side wall and the second side wall are arranged on opposite sides of the bottom wall, and wherein the bottom wall, the first side wall, and the second side wall enclose a hollow waveguide channel on three sides. The tunable waveguide attenuator further comprises a movable cover for the hollow waveguide channel that on a surface facing the bottom wall comprises a first section and a second section with different surface loss properties, wherein the movable cover is movable such that the area of the hollow waveguide channel that is covered by the first section and the second section changes with the movement of the movable cover.