Slow wave transmission line

A single-layer slow-wave transmission line with slits in the ground conductor enhances signal delay and integration on printed circuit boards by reducing ground conductor layers and creating alternating high- and low-impedance sections for efficient signal slowing.

WO2025262972A1 Publication Date: 2025-12-26MITSUBISHI ELECTRIC CORP
4 Cites 0 Cited by

Patent Information

Application Number
PCT/JP2024/033564
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-19
Filing Date
2024-09-20
Publication Date
2025-12-26

AI Technical Summary

Technical Problem

Existing slow-wave transmission lines with multiple ground conductor layers are cumbersome for integration into printed circuit boards, necessitating a design that reduces the number of layers while maintaining high slow-wave effects.

Method used

A slow-wave transmission line configuration with a signal conductor and a ground conductor in a single layer, featuring slits in the ground conductor that intersect with the signal conductor, creating high- and low-impedance sections to slow down high-frequency signals, and utilizing a three-layer structure with an insulator sandwiched between them.

Benefits of technology

The design increases delay and slows down high-frequency signals effectively, facilitating easy integration onto printed circuit boards by reducing the number of ground conductor layers and allowing for adjustable delay settings through slit shape configurations.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This slow wave transmission line comprises a signal conductor (2) and a ground conductor (3) that are disposed with an insulator (1) therebetween. The ground conductor (3) includes a plurality of slits (3a) that intersect the extension direction of the signal conductor (2). The distance of a contour line OL from one end to the other end in an intersecting direction intersecting the extension direction of the signal conductor (2) of the slits (3a) in the ground conductor (3) in which the slits (3a) are formed is longer than the distance of a straight line connecting one end and the other end in the intersecting direction.
Need to check novelty before this filing date? Find Prior Art