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Phase shifter comprising dgs and radio communication module comprising same

A technology of communication modules and phase shifters, which is applied in the direction of circuits, electrical components, waveguide devices, etc., can solve problems such as large insertion loss and large dielectric thickness, and achieve the effects of reducing signal loss, wide bandwidth, and reducing design costs

Active Publication Date: 2020-06-19
LG DISPLAY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, conventional phase shifters have relatively large dielectric thickness and large insertion loss

Method used

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  • Phase shifter comprising dgs and radio communication module comprising same
  • Phase shifter comprising dgs and radio communication module comprising same
  • Phase shifter comprising dgs and radio communication module comprising same

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Embodiment Construction

[0034] The above objects, features and advantages will be described in detail with reference to the accompanying drawings. Therefore, those skilled in the art to which the present disclosure pertains will be able to easily implement the technical idea according to the present disclosure. However, it is understood that the present disclosure may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present disclosure. Hereinafter, preferred embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar elements.

[0035] In the following, reference will be made to Figure 1 to Figure 10 A phase shifter including a DGS structure and an electromagnetic wave communication module includi...

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Abstract

The present invention relates to a phase shifter comprising a DGS and a radio communication module comprising the same. The phase shifter comprises: a first substrate; a microstrip formed on the firstsubstrate so as to extend in a first direction; a ground layer disposed with a space on the upper surface of the microstrip and having a defected ground structure (DGS) with a defected pattern formedtherein; a second substrate disposed on the ground layer; and a liquid crystal layer disposed in a space between the first substrate and the second substrate, wherein DC voltage is applied between the ground layer and the microstrip.

Description

technical field [0001] The present disclosure relates to a phase shifter including a DGS (Defective Ground Structure) and an electromagnetic wave communication module including the same. Background technique [0002] A microstrip transmission line structure is widely used as a transmission line structure for realizing RF communication circuits and components based on radio frequency (RF) bands, microwave bands, and millimeter wave bands. Microstrip transmission lines are usually formed on a printed circuit board (PCB) in a planar structure. In microstrip transmission lines, typically, defect ground structures (DGS) are formed in the ground plane by etching. [0003] In the prior art, when a defect ground structure (DGS) is inserted into the transmission line, the length of the microstrip transmission line can be reduced. This can reduce the length of the RF communication circuit. However, even when a defect ground structure (DGS) is inserted into the ground plane of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/18H01P3/08
CPCH01P1/184H01P3/081H01P3/08H01Q1/50
Inventor 闵丙旭金埙培金成恩文晶玟崔秀石柳成必郑智桓张起皙
Owner LG DISPLAY CO LTD
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