Phase shifter with overlapping first and second U-shaped patterns

摘要

A feeding system for providing a power using metal patterns having ‘U’ shape is disclosed. A phase shifter as the feeding system includes a first substrate, a first pattern as a conductor disposed on the first substrate, a second substrate separated from the first substrate and a second pattern as a conductor disposed on the second substrate. Here, the first pattern is overlapped with the second pattern, and electrical length of overlapped part of the patterns changes in case of changing phase of an RF signal outputted from the phase shifter.

主权项

1. A phase shifter comprising:
a first substrate; first patterns as a conductor disposed on the first substrate; a second substrate separated from the first substrate; second patterns as a conductor disposed on the second substrate, and third patterns connected electrically to the first patterns on the first substrate; wherein the first patterns are overlapped with the second patterns, electrical length of overlapped parts of the first patterns and the second patterns changes in case of changing phase of an RF signal outputted from the phase shifter, and a first dielectric layer exists between at least one of the first patterns and corresponding third patterns.