Liquid crystal antenna, dielectric constant measuring method thereof and driving method thereof
A dielectric constant and antenna technology, which is applied in the field of liquid crystal antennas, can solve problems such as the performance impact of liquid crystal antennas, achieve the effects of eliminating performance impacts, avoiding application limitations, and improving performance
Pending Publication Date: 2022-08-09
BOE TECH GRP CO LTD
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Problems solved by technology
[0005] In view of the shortcomings of the existing methods, the present application proposes a liquid crystal antenna, its dielectric constant measurement method and its driving method, in order to solve the problem that the prior art cannot well solve the influence of temperature on the dielectric constant of the liquid crystal material, so that Technical issues affecting the performance of liquid crystal antennas
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[0055] Embodiments of the present application are described below with reference to the accompanying drawings in the present application. It should be understood that the embodiments described below in conjunction with the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application, and do not limit the technical solutions of the embodiments of the present application.
[0056] It will be understood by those skilled in the art that the singular forms "a", "an", "the" and "the" as used herein can include the plural forms as well, unless expressly stated otherwise. It should be further understood that the word "comprising" used in the specification of the present application means that the features, integers, steps, operations, elements and / or components are present, but does not exclude the realization of other features, information supported by the technical field , data, steps, operations, elements, com...
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The embodiment of the invention provides a liquid crystal antenna and a dielectric constant measuring method and a driving method thereof. The liquid crystal antenna comprises a plurality of antenna units, the driving circuit comprises a plurality of control units, each control unit is electrically connected with the first end of the adjustable capacitor in one antenna unit, and the control units are configured to charge the adjustable capacitors with corresponding voltages when receiving charging signals in the dielectric constant measurement stage of the liquid crystal antenna. When the measuring signal is received, the charging amount of the adjustable capacitor is detected; the control unit is further configured to charge the adjustable capacitor with the received working voltage at the working stage of the liquid crystal antenna when the control signal is received, so that the antenna unit corresponding to the adjustable capacitor radiates electromagnetic waves at the corresponding phase. According to the embodiment, the performance of the liquid crystal antenna can be improved due to the influence of the temperature on the performance of the liquid crystal antenna, the size of the liquid crystal antenna is not influenced, and application limitation of the liquid crystal antenna is avoided.
Description
technical field [0001] The present application relates to the technical field of liquid crystal antennas, and in particular, the present application relates to a liquid crystal antenna, a method for measuring the dielectric constant thereof, and a method for driving the same. Background technique [0002] Liquid crystal material is the core material of liquid crystal antenna, which has a great influence on the performance of liquid crystal antenna. Taking microwave liquid crystal materials as an example, the dielectric constant of microwave liquid crystal materials varies with temperature. If the influence of temperature on the dielectric constant of liquid crystal materials cannot be eliminated, the performance of liquid crystal antennas will inevitably be affected. [0003] In the prior art, there are various solutions for the influence of temperature on the liquid crystal material. For example, the dielectric constant data of the liquid crystal material at different temp...
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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/36G01R27/26
CPCH01Q1/38H01Q1/50H01Q1/36G01R27/2617
Inventor 王志东曲峰周全国周丽佳唐浩孙秀茹张青朱学辉
Owner BOE TECH GRP CO LTD