A signal transmission line includes a signal region that includes a signal conductor layer and insulating base material layers, and a first ground region that includes a first ground conductor layer and insulating base material layers and is located above the signal region. The signal region is not fixed to the first ground region in a first section of a base. One or more first spacers are fixed to the signal region and in contact with the first ground region without being fixed thereto, or are in contact with the signal region without being fixed thereto and fixed to the first ground region. The one or more first spacers are in the first section.

Low-loss terahertz switches with nanometer resolution positioning and feedback are disclosed. In one embodiment, the switch uses a U-bend waveguide surrounded by an electromagnetic band gap and is implemented in a fully metal-machined fashion in combination with a piezo-electric motor and an optical linear encoder. In another embodiment, the switch comprises a MEMS device.

Low-loss terahertz switches with nanometer resolution positioning and feedback are disclosed. In one embodiment, the switch uses a U-bend waveguide surrounded by an electromagnetic band gap and is implemented in a fully metal-machined fashion in combination with a piezo-electric motor and an optical linear encoder. In another embodiment, the switch comprises a MEMS device.

In a transmission line, a thickness of a second section is smaller than that of a first section and of a third section. A center of the second section is above a center of the first section and a center of the third section in a laminated body up-down direction. A distance between a second signal conductor layer and a neutral plane of the second section is shorter than a distance between a first signal conductor layer and a neutral plane of the second section and a distance between a third signal conductor layer and a neutral plane of the second section in the laminated body up-down direction. A length of the second signal conductor layer between first and second interlayer connection conductors is equal to or less than about ½ of a wavelength of a high-frequency signal transmitted by the transmission line.

The present invention relates to a transmission line having improved bending durability, which includes a strip structure or a micro-strip structure that is divided into a base part and a bending part that is bent and unfolded based on the base part, wherein the base part and the bending part include a signal line configured to extend in a length direction so as to transmit a high frequency signal, a first dielectric of which an upper surface or a lower surface is provided with the signal line formed thereon, and a second dielectric formed above the first dielectric; and the second dielectric is coupled to the first dielectric in the base part and separated from the first dielectric in the bending part.

An antenna array is provided that includes a plurality of radiating elements and one or more combiners. The plurality of radiating elements and the combiners are formed as a single indivisible metal element by use of additive manufacturing processes.

A redirecting device for mm-waves includes an input section, an output section disposed at 90 degrees to the input section, and a waveguide member extending from the input section to the output section. The waveguide member is a rigid dielectric material.

A structure of serpentine transmission line includes a first transmission line and a second transmission line. The first transmission line includes a first line segment, a second line segment and a third line segment. The second transmission line includes a fourth line segment, a fifth line segment and a sixth line segment. The first line segment, the second line segment, the fourth line segment and the fifth line segment extend along a first direction and have a first line width. The third line segment extends along a second direction and is connected to the first line segment and the second line segment. The sixth line segment extends along the second direction and is connected to the fourth line segment and the fifth line segment. Both the third line segment and the sixth line segment have a second line width. The second line width is greater than the first line width.

A structure of serpentine transmission line includes a first transmission line and a second transmission line. The first transmission line includes a first line segment, a second line segment and a third line segment. The second transmission line includes a fourth line segment, a fifth line segment and a sixth line segment. The first line segment, the second line segment, the fourth line segment and the fifth line segment extend along a first direction and have a first line width. The third line segment extends along a second direction and is connected to the first line segment and the second line segment. The sixth line segment extends along the second direction and is connected to the fourth line segment and the fifth line segment. Both the third line segment and the sixth line segment have a second line width. The second line width is greater than the first line width.

Embodiments relate to systems, methods, and computer-readable media to enable a wireless communication device. In one embodiment a wireless communication device is configured to radiate a millimeter wave signal through a circular waveguide. A patch antenna is resonated in a Transverse Magnetic 1-0 (TM10) operating mode and electrically couples to an open end of the circular waveguide. The electric field pattern of the patch antenna is such that the millimeter wave signal is launched into the waveguide propagating in a Transverse Electric 1-1 (TE11) mode. In other embodiments, various other configurations may be used as described herein.