Disclosed is a support structure for a guided surface waveguide probe. In some embodiments, the support structure includes vertically oriented corner columns that define outer corners of the structure, vertically oriented intermediate columns that define portions of outer sides of the structure, each intermediate column being positioned between a pair of corner columns, framing members that extend between the corner columns and the intermediate columns, plates located at junctions between the framing members and the columns, and fasteners located at the junctions that secure the framing members and the plates to the corner columns and the intermediate columns, and that secure the framing members to the plates, wherein the corner columns, intermediate columns, framing members, plates, and fasteners are all made of a non-conductive material.

Disclosed is a support structure for a guided surface waveguide probe. In some embodiments, the support structure includes vertically oriented corner columns that define outer corners of the structure, vertically oriented intermediate columns that define portions of outer sides of the structure, each intermediate column being positioned between a pair of corner columns, framing members that extend between the corner columns and the intermediate columns, plates located at junctions between the framing members and the columns, and fasteners located at the junctions that secure the framing members and the plates to the corner columns and the intermediate columns, and that secure the framing members to the plates, wherein the corner columns, intermediate columns, framing members, plates, and fasteners are all made of a non-conductive material.

A waveguide type power combining/dividing unit W includes a plurality of rectangular waveguides 1 for TE10 mode disposed in a radial pattern, a circular waveguide 2 for TM01 mode disposed at a center of the radial pattern, in which one ends of the plurality of the rectangular waveguides 1 are connected to a side surface of one end of the circular waveguide.

A waveguide arrangement for guiding electromagnetic waves in a cavity surrounded by conductive material is proposed, wherein the waveguide arrangement comprises a printed circuit board material having an electrically conductive, plate-shaped back, a substrate and a conductive layer arranged on a side of the substrate facing away from the back. According to the invention, it is provided that the back has a surface structure, preferably formed by at least one recess, by which the waveguiding cavity is at least partially directly bounded; and/or that the cavity is formed in split-block technology by joining the printed circuit board material as split-block bottom part with a corresponding cover as split-block top part.

An enhanced hybrid-tee coupler (EHT-coupler), the EHT-coupler is described. The EHT-coupler includes a first waveguide, second waveguide, third waveguide, and fourth waveguide. The first waveguide defines a first port and the second waveguide defines a second port. Similarly, the third waveguide defines a fourth port and the fourth waveguide defines a fourth port. The first, second, third, and fourth waveguides meet in a single common junction and the first waveguide and second waveguide are collinear. The third waveguide forms an E-plane junction with both the first waveguide and the second waveguide and the fourth waveguide forms an H-plane junction with both the first waveguide and the second waveguide. The EHT-coupler also includes a first impedance matching element positioned in the common junction where the first impedance matching element includes a base and a tip.

A probe calibration device that includes a first offset element having a substantially rectangular first aperture. The probe calibration device includes a tuned pass element disposed adjacent to the first offset element. The tuned pass element has a non-rectangular second aperture. The probe calibration device includes a second offset element disposed adjacent to the tuned pass element and on a side opposite the first offset element. The second offset element has a substantially rectangular third aperture. The probe calibration device includes a backing element disposed adjacent to the second offset element. The first offset element, the tuned pass element, the second offset element and the backing element form a cavity.

A signal transmission system including: a first connector apparatus, and a second connector apparatus that is coupled with the first connector apparatus. The first connector apparatus and the second connector apparatus are coupled together to form an electromagnetic field coupling unit, and a transmission object signal is converted into a radio signal, which is then transmitted through the electromagnetic field coupling unit, between the first connector apparatus and the second connector apparatus.

The radar system includes a split-block assembly comprising a first portion and a second portion. The first portion and the second portion form a seam, where the first portion has a top side opposite the seam and the second portion has a bottom side opposite the seam. The system includes at least one port located on a bottom side of the second portion. Additionally, the system includes radiating elements located on the top side of the first portion, wherein the radiating elements are arranged in a plurality of arrays. Yet further, the system includes a set of waveguides in the split-block assembly configured to couple each array to at least one port. Furthermore, the split-block assembly is made from a polymer and where at least the set of waveguides, the at least one port, and the plurality of radiating elements include metal on a surface of the polymer.

A device and method for transitioning between a rectangular waveguide (RWG) and a substrate integrated waveguide (SIW) or air-filled SIW (AFSIW) in millimeter wave communication systems. The transition apparatus includes a pair of hollow metallic structures, each featuring a tapered body connecting RWG and SIW (or AFSIW) interfaces. The tapered bodies facilitate a seamless transition with lengths ranging from approximately 1 mm to 15 mm, accommodating SIW and AFSIW substrate heights from about 0.2 mm to 1.0 mm. The apparatus ensures impedance matching within a specified range, maintains a voltage standing wave ratio between 1 and 5, and achieves a total reflection coefficient between 20 dB and 10 dB. Additionally, the apparatus exhibits high modal purity, with dominant mode levels between-1 dB and 0.25 dB, and significantly attenuated non-dominant modes. The apparatus supports efficient signal transmission within the frequency range of approximately 50 GHz to 75 GHz.

The present disclosure relates to a phase shifter, an accelerator, and an operating method therefor. The phase shifter comprises a rotating part having a first hollow structure, the first hollow structure having a first cavity, a distance between a circumference of the cross section of the first cavity and a rotation center of the rotating part changing periodically and continuously in a peripheral direction, such that when the rotatory part rotates, a phase shift occurs between two adjacent microwave pulses at an outlet of the phase shifter. The operating method comprises transmitting a microwave pulse within the accelerator at a repetitive frequency v Hertz; the driving devices drives the rotating part to rotate at a rotation speed of n RPM, wherein n=15v*m, m is an odd number, 1, 3, 5 . . . , such that when transmitting a microwave pulse each time, the long axis of the oval cross section of the first cavity of the rotatory part is rotated to a horizontal or vertical state.