Signal conditioner, antenna device and manufacturing method

A manufacturing method for a signal conditioner, comprising:

• forming a microstrip line on a first substrate, wherein the microstrip line comprises a first portion and a second portion, a first end of the first portion being connected to a first end of the second portion, and a second end of the first portion being connected to a second end of the second portion;
• forming an insulating layer on a side of the microstrip line facing away from the first substrate, wherein the insulating layer comprises a first insulating layer covering the first portion;
• forming at least one electrode on a side of the insulating layer facing away from the microstrip line, wherein the at least one electrode comprises a first electrode formed on a side of the first insulating layer facing away from the first portion, wherein an extension direction of the first electrode is the same as an extension direction of the first portion of the microstrip line;
• introducing a liquid crystal layer on the first substrate, the liquid crystal layer covering the microstrip line, the insulating layer and the at least one electrode;
• forming a common electrode line on a second substrate;
• and
• engaging the first substrate to the second substrate to make the liquid crystal layer and the common electrode line be between the first substrate and the second substrate, wherein an orthographic projection of the common electrode line on the first substrate covers an orthographic projection of the first electrode on the first substrate.

A signal conditioner, comprising:

• a microstrip line comprising a first portion and a second portion, wherein a first end of the first portion is connected to a first end of the second portion, and a second end of the first portion is connected to a second end of the second portion;
• an insulating layer comprising a first insulating layer covering the first portion and a second insulating layer covering the second portion;
• at least one electrode comprising a first electrode on a side of the first insulating layer facing away from the first portion and a second electrode on a side of the second insulating layer facing away from the second portion, wherein the second electrode is isolated from the first electrode, and the first electrode and the second electrode are symmetrically arranged;
• a liquid crystal layer covering the microstrip line, the insulating layer and the at least one electrode;
• and
• a common electrode line on a side of the liquid crystal layer facing away from the microstrip line.