Windowpane Capacitor Antenna for 5G Signal Transmission
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Solution Overview
Problem
Existing technologies face challenges in providing a stable wireless communication environment inside buildings and movable bodies due to blockage by high-rise structures, especially with the advent of 5G which uses high-frequency millimeter waves that are attenuated or reflected by non-metal portions like windowpanes, making it difficult to introduce these technologies into ordinary households.
Innovation Solution
A signal transmission device comprising directional antennas, such as phased-array antennas, fixed to a windowpane with simple fixing members like adhesives or magnets, which transmit and receive radio waves through the windowpane, enabling beamforming and stable signal transmission even if the antennas are slightly displaced, and a demodulation device to process signals, allowing for the use of high-frequency signals like those in 5G.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-frequency millimeter waves are used for 5G communication, then communication speed and capacity are improved, but signal transmission is blocked or reflected by non-metal portions like windowpanes
Solution Approach 1:
The patent introduces a signal transmission device as an intermediary component that includes a first antenna outside the building, a capacitor with electrodes on both sides of the windowpane, and a demodulation device inside. This intermediary system enables high-frequency 5G signals to pass through the windowpane by using the windowpane itself as part of the capacitor structure, thus resolving the blockage issue while maintaining communication speed
Solution Approach 2:
The patent changes the electrical parameters of the windowpane by forming a capacitor structure where the windowpane acts as a dielectric layer between two electrodes. This parameter change allows the windowpane to become transparent to high-frequency millimeter waves by controlling the capacitance and impedance characteristics, enabling signal transmission while maintaining structural integrity
2Reliability
If dedicated equipment like double-glazed glass and relay devices are used to transmit signals through buildings, then signal transmission reliability is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent makes the windowpane serve multiple functions: it continues to provide its original function as a building component for protection and insulation, while simultaneously functioning as a capacitor element for signal transmission. This eliminates the need for separate dedicated signal transmission equipment like double-glazed glass or relay devices, reducing overall system complexity
Solution Approach 2:
The patent merges the building component (windowpane) with the signal transmission device (capacitor) into a single integrated structure. The windowpane becomes both the building envelope and the functional element for high-frequency signal transmission, eliminating the need for separate dedicated equipment and simplifying installation
3Reliability
If antennas are fixed rigidly to ensure precise positioning for beamforming, then signal transmission stability is improved, but installation complexity and cost increase
Solution Approach 1:
The patent transitions from rigid fixed positioning to a flexible positioning system where the first antenna can be installed at various locations outside the building and the second antenna inside, with the system dynamically adjusting to maintain beamforming effectiveness. The fixing members provide sufficient stability without requiring precise rigid positioning, simplifying installation while maintaining signal transmission stability
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 provides a stable wireless communication environment inside buildings and movable bodies by enabling the transmission of high-frequency signals, such as those used in 5G, with a simple setup that can be easily installed in households without the need for dedicated equipment like double-glazed glass and relay devices, ensuring compatibility with future 5G standards.
Implementation Method 1
a first antenna transmitting radio waves containing a signal modulated at a first frequency
Implementation Method 2
a capacitor constituted by a first electrode fixed to an outside of a building or a movable body and a second electrode fixed to an inside of the building or the movable body
Data Source
AI summary
A signal transmission device includes a first antenna, a second antenna, a demodulation device, and a fixing member. The first antenna transmits radio waves containing a signal modulated at a first frequency. The second antenna receives the radio waves containing the signal via a medium. The demodulation device demodulates the signal and connected to the second antenna. The fixing member fixes the first antenna and the second antenna to the medium.