RF Feeding Structure With Phase Shift Units for Noise Reduction
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Solution Overview
Problem
Electronic devices with complex feeding structures experience increased noise in radio frequency signals, necessitating the development of improved designs to enhance signal processing and reduce noise.
Innovation Solution
The electronic device incorporates a substrate with phase shift units, a feeding structure, and a radio frequency signal processor to alter and manage radio frequency signals, including the use of phase shift electrodes and liquid-crystal materials to modulate signal phases and reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the feeding structure has more bifurcation paths to distribute radio frequency signals, then the signal coverage is improved, but the noise of the radio frequency signal increases
Solution Approach 1:
The feeding structure is divided into multiple independent feeding lines with separate bifurcation paths, where each path is equipped with its own phase shift unit. This segmentation allows independent control of each signal path, enabling noise reduction through selective phase adjustment while maintaining comprehensive signal coverage across the antenna array.
Solution Approach 2:
Phase shift units are introduced into each bifurcation path to dynamically adjust the phase of radio frequency signals. This dynamic control enables adaptive noise cancellation and signal optimization, allowing the system to maintain low noise levels while achieving wide signal coverage through constructive interference patterns.
2Object-affected harmful factors
If phase shift units are added to alter radio frequency signals, then noise is reduced and signal quality is improved, but device complexity increases
Solution Approach 1:
Phase shift units are strategically placed only at specific locations within the feeding structure where noise mitigation is most beneficial, rather than uniformly throughout the entire system. This localized approach reduces overall device complexity while achieving effective noise reduction at critical signal paths.
Solution Approach 2:
The phase shift units serve multiple functions simultaneously: they adjust signal phase for noise reduction, optimize signal distribution across the antenna array, and enable beamforming capabilities. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.
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
This configuration effectively reduces noise in radio frequency signals by altering and processing them through phase shift units and liquid-crystal materials, improving signal quality and directivity.
Implementation Method 1
The phase shift units include a pair of phase shift electrodes and liquid-crystal materials disposed between the phase shift electrodes
Data Source
AI summary
An electronic device includes a substrate, plurality of electrodes disposed on the substrate, a plurality of metal elements disposed on the substrate, a plurality of first lines disposed on the substrate, and a radio frequency signal processor. One of the plurality of metal elements is overlapped one of the plurality of electrodes. The radio frequency signal processor provides a signal to the one of the plurality of electrodes through one of the plurality of first lines.