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Phase shifter, manufacturing method thereof and antenna

A phase shifter and substrate technology, applied in the field of electromagnetic waves, can solve the problems of large difference in liquid crystal filling volume, influence of radio frequency signal radiation angle, low cell thickness uniformity, etc., so as to improve cell thickness uniformity, optimize phase shifting effect, The effect of improving the uniformity of the box thickness

Active Publication Date: 2021-12-31
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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Problems solved by technology

[0003] In the prior art, the liquid crystal phase shifter is provided with support columns for supporting the cell thickness. However, based on the current location of the support columns, the cell thickness uniformity of the liquid crystal phase shifter is not high, resulting in the filling of liquid crystals in different regions. The volume difference is large, which affects the radiation angle of the RF signal radiated by the liquid crystal phase shifter, thereby affecting the antenna gain

Method used

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  • Phase shifter, manufacturing method thereof and antenna
  • Phase shifter, manufacturing method thereof and antenna
  • Phase shifter, manufacturing method thereof and antenna

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Embodiment Construction

[0044] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0047] It should be understood that the term "an...

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Abstract

The embodiment of the invention provides a phase shifter, a manufacturing method thereof and an antenna, relates to the technical field of electromagnetic waves, and aims to improve the accuracy of a radiation angle of a radiation signal. The phase shifter includes a first substrate, a second substrate, a directly facing cavity, liquid crystal and a supporting structure, wherein the first substrate is provided with a first electrode for receiving a grounding signal; the side, which faces the first substrate, of the second electrode is provided with a second electrode; directly facing cavity comprises a second electrode arrangement area, transition areas and a peripheral area, the orthographic projection of the second electrode arrangement area coincides with the orthographic projection of the second electrode in the direction perpendicular to the plane where the second substrate is located, each transition area surrounds at least one second electrode arrangement area, and the peripheral area is located on the side, which is away from the second electrode arrangement region, of the transition area; the liquid crystal is encapsulated between the first substrate and the second substrate; and the supporting structure is arranged between the first substrate and the second substrate and comprises first supporting columns located in the transition areas and second supporting columns located in the peripheral area, and the distribution density of the first supporting columns is greater than that of the second supporting columns.

Description

【Technical field】 [0001] The invention relates to the technical field of electromagnetic waves, in particular to a phase shifter, a manufacturing method thereof, and an antenna. 【Background technique】 [0002] With the gradual evolution of the communication system, the phase shifter has been more and more widely used. Taking the liquid crystal phase shifter as an example, the liquid crystal phase shifter changes the dielectric constant of the liquid crystal by controlling the rotation of the liquid crystal, so as to realize the The RF signal transmitted in the liquid crystal phase shifter is phase shifted. [0003] In the prior art, the liquid crystal phase shifter is provided with support columns for supporting the cell thickness. However, based on the current location of the support columns, the cell thickness uniformity of the liquid crystal phase shifter is not high, resulting in the filling of liquid crystals in different regions. The large difference in volume affects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/18H01P11/00H01Q3/36
CPCH01P1/18H01P11/00H01Q3/36
Inventor 席克瑞彭旭辉秦锋崔婷婷林柏全王逸吴员涛
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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