A transmission line is provided and includes a center conductor suspended above a ground plane and comprising a line of printed, self-supporting metallic material, ground walls disposed on either side of the center conductor and comprising stacked lines of printed metallic material and a lid suspended above the center conductor between the ground walls and comprising arrayed lines of the printed, self-supporting metallic material.

The disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). A transmission line structure of a wireless communication system is provided. The transmission line includes a ground area, a signal line, and a support. A first surface of the signal line is disposed to be spaced apart from the ground area via an air layer therebetween, a second surface of the signal line located opposite to the first surface may be coupled to the support, and the support may be coupled to the ground area.

A transmission line includes an element body, a signal conductor layer, and a ground conductor layer. The element body includes an insulator layer. The signal conductor layer is below the insulator layer, and the ground conductor layer is above the insulator layer in an element body up-down direction. A hole is located at a surface of the insulator layer and penetrates the insulator layer in the element body up-down direction. At least a portion of the hole overlaps the signal conductor layer when viewed in the element body up-down direction. The hole extends between a left hole-defining surface and a right hole-defining surface. In a cross section orthogonal to the element body front-back direction, the left hole-defining surface includes a left upper end and a left lower end in the element body left-right direction, and the right hole-defining surface includes a right upper end and a right lower end in the element body left-right direction.

The disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). A transmission line structure of a wireless communication system is provided. The transmission line includes a ground area, a signal line, and a support. A first surface of the signal line is disposed to be spaced apart from the ground area via an air layer therebetween, a second surface of the signal line located opposite to the first surface may be coupled to the support, and the support may be coupled to the ground area.

One or more systems, devices and/or methods of fabrication provided herein relate to forming a superconductor ribbon cable structure with double stripline structures to improve flex yields. According to one embodiment, a superconductor ribbon cable structure can comprise a top ground plane and a bottom ground plane. In various embodiments, the superconductor ribbon cable structure can comprise a core substrate between the top ground plane and the bottom ground plane. In various aspects, the superconductor ribbon cable structure can comprise a double stripline structure in the core substrate. In various embodiments, the double stripline structure can comprise a first stripline and a second stripline, wherein the second stripline is a floating stripline.

In accordance with an embodiment, a feed stripline includes: a signal input line; a first power branch line; and a second power branch line. A first end of the signal input line is configured to be conductively coupled to an external signal source, a second end of the signal input line is electrically connected to each of the first power branch line and the second power branch line, the first power branch line includes a jump structure, the first power branch line spans from a first side of the second power branch line to a second other side of the second power branch line via the jump structure, and the jump structure and the second power branch line are spaced apart from each other.