Liquid Crystal Antenna Side Electrodes for Faster Frequency Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing liquid crystal antennas suffer from slow frequency switching efficiency due to the long relaxation time of liquid crystal molecules returning to their initial state, limiting their application range.
Innovation Solution
A liquid crystal antenna design featuring a first and second substrate with a liquid crystal layer between them, a first and second electrode, a feeder line, an encapsulation layer, and a side electrode assembly with intersecting electric fields to assist the liquid crystal molecules in quickly returning to their initial state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If voltage is applied to change the dielectric constant of the liquid crystal layer to reconfigure the working frequency, then the frequency switching capability is achieved, but the liquid crystal molecules require long relaxation time to return to initial state, greatly affecting the frequency switching efficiency
Solution Approach 1:
The patent divides the single voltage application approach into two separate voltage applications: a first voltage applied to the first electrode and a second voltage applied to the second electrode. This segmentation allows independent control of the liquid crystal molecules' orientation, enabling faster return to initial state and improving frequency switching efficiency while maintaining frequency reconfiguration capability
Solution Approach 2:
The patent applies a preliminary voltage to the liquid crystal layer before frequency switching is needed. This preliminary action pre-positions the liquid crystal molecules in a favorable state that reduces the time required to return to the initial state after voltage removal, thereby decreasing relaxation time and improving switching efficiency
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design significantly shortens the relaxation time and improves the working frequency switching efficiency of the liquid crystal antenna.
Implementation Method 1
a dielectric constant of a liquid crystal layer can be changed by changing a voltage applied to two ends of the liquid crystal layer of the liquid crystal antenna
Implementation Method 2
a side electrode assembly including a plurality of side electrodes. In some embodiments of the present application, a direction of an electric field formed by the side electrodes in the side electrode assembly intersects with a direction of an electric field formed by the first electrode and the second electrode
Data Source
AI summary
Provided is a liquid crystal antenna, which includes a first substrate and a second substrate which are oppositely arranged; a liquid crystal layer located between the first substrate and the second substrate; a first electrode located on one side of the first substrate close to the liquid crystal layer; a second electrode located on one side of the second substrate close to the liquid crystal layer; a feeder line located on one side of the second substrate far away from the second electrode and electrically connected with the second electrode; an encapsulation layer located between the first substrate and the second substrate and surrounding the liquid crystal layer; and a side electrode assembly including a plurality of side electrodes.