A low-profile slide screw impedance tuner with rotating disc-shaped tuning probes uses a mechanical arrangement for correcting the skewing of the reflection factor response of the rotating tuning probes. As the axis of the control motor turns, a protruding pin pushes against a fixed limit stop block and shifts the motor and its axis, and by that the tuning probe, in the opposite direction of the rotation shift. This corrects for the skewing phase rotation.

A phase shifter includes: an input port configured to receive a radio frequency signal; an output port configured to output a radio frequency signal whose phase is changed; The output port and changing the phase of the radio frequency signal; and a replaceable dielectric board made of dielectric material and covering at least a part of the feed line.

Structures including an electro-optical phase shifter and methods of fabricating a structure including an electro-optical phase shifter. The structure includes a waveguide core on a semiconductor substrate, and an interconnect structure over the waveguide core and the semiconductor substrate. The waveguide core includes a phase shifter, and the interconnect structure includes a slotted shield and a transmission line coupled to the phase shifter. The slotted shield includes segments that are separated by slots. The slotted shield is positioned between the transmission line and the substrate.

A phase shifter includes functional actively controlled phase-shift elements formed with TSVs. The phase shifter may include plural phase shifter elements each including: a signal line including a signal line through-substrate-via (TSV) in a substrate; a ground return line including a ground return line TSV in the substrate; a capacitance control line including a capacitance control line TSV in the substrate; and an inductance control line including an inductance control line TSV in the substrate, wherein the phase shifter element has one of a first phase shift and a second phase shift, different from the first phase shift, based on a capacitance and an inductance of the signal line TSV.

A device for phase-shifting a radiofrequency signal, includes a first carrier and a second carrier, an input port and an output port for radiofrequency signals, the input port and the output port being formed on the first carrier, the phase-shifting device comprising: a first array of conductive pads that are distributed over the first carrier and run from the input port, a second array of conductive pads that are distributed over the second carrier, the first carrier, the second carrier, the first array of conductive pads and the second array of conductive pads being arranged so as to form a structure for guiding radiofrequency signals of variable length having a rectangular cross section, the first array of conductive pads and the second array of conductive pads being configured such that the length and cross section of the guide structure change, over at least a portion of the path along which the radiofrequency signals propagate through the guide structure, as the second carrier moves relative to the first carrier.

A phase shifter and a method for manufacturing the same are provided. The phase shifter includes a substrate, a signal line on the substrate, ground lines in pairs and on the substrate, and at least one film bridge on the substrate and spaced apart from the signal line. Two adjacent ground lines of the ground lines are on both sides of the signal line and spaced apart from the signal line, respectively, and both ends of each film bridge are on the two adjacent ground lines, respectively. The signal line is in a space surrounded by each film bridge and the substrate. Each film bridge includes a metal layer opposite to the signal line, the metal layer has a plurality of openings therein, and the plurality of openings penetrate through the metal layer in a thickness direction of the metal layer.

The present disclosure provides a phase shifter and antenna, The phase shifter includes a first substrate, a second substrate and a first dielectric layer between the first substrate and the second substrate. The first substrate includes: a first base substrate and a transmission line on a side of the first base substrate proximal to the first dielectric layer. The second substrate includes: a second base substrate and a reference electrode on a side of the second substrate proximal to the first dielectric layer. An orthographic projection of the reference electrode on the first base substrate at least partially overlaps an orthographic projection of the transmission line on the first base substrate. The reference electrode is provided with a first opening therein, and a length of the first opening along the first direction is not less than a line width of the transmission line.

A waveguide in the form of a wave duct for transmitting microwave signals includes at least one non-conducting body arranged in and/or on the wave duct, and by at least one MHD pump, by which an electrically conductive liquid medium can be admitted to fill the at least one body and/or to exert a force on at least one wall of the wave duct.

A radar system includes a split-block assembly unit comprising a first portion and second portion, where the first portion and the second portion form a seam. The radar system further includes a plurality of ports located on a bottom side of the second portion opposite the seam. Additionally, the radar system includes a plurality of radiating elements located on a top side of the first portion opposite the seam. The plurality of radiating elements is arranged in a plurality of arrays. The plurality of arrays includes a set of multiple-input multiple-output (MIMO) transmission arrays, a set of synthetic aperture radar (SAR) transmission arrays, and at least one reception array. Further, the radar system includes a set of waveguides configured to couple each array to a port.

The present disclosure provides a phase shifter and an antenna, and relates to the field of communication technology. The phase shifter provided by the embodiment of the present disclosure is divided into a first feeding region, a second feeding region and a phase-shift region. The phase shifter includes: a first substrate and a second substrate provided opposite to each other, a dielectric layer provided between the first substrate and the second substrate, and a first feeding structure and a second feeding structure. The first feeding structure is electrically coupled to one end of the signal line, and the second feeding structure is electrically coupled to the other end of the signal line. The first feeding structure is located in the first feeding region; and the second feeding structure is located in the second feeding region. Recesses are formed in the first base substrate and/or in the second base substrate.