Antenna Fabry-Perot Resonator for mmWave Gain Improvement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing antennas, particularly mmWave antennas, face challenges in increasing gain without significantly altering their shape, material, or size, which complicates manufacturing and increases costs.
Innovation Solution
Incorporating a wave dense medium with specific dielectric properties and thickness in the transmission path of the antenna to form a Fabry-Perot resonator, enhancing gain without modifying the antenna's shape, material, or size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the shape, material, or size of the antenna is changed to increase gain, then the antenna gain is improved, but the manufacturing difficulty and costs are greatly increased
Solution Approach 1:
The solution separates the antenna from the gain-enhancement function by introducing a distinct wave dense medium component. The antenna maintains its original modular design while the wave dense medium (with thickness D satisfying 0.5nλg(1-10%)≤D≤0.5nλg(1+10%)) is added as a separate element in the transmission path, allowing gain improvement without modifying the antenna's shape, material, or size.
Solution Approach 2:
A wave dense medium is introduced as an intermediary component between the antenna and the surrounding environment. This medium has a dielectric constant higher than both the medium on its antenna-side and the medium on its opposite side, creating a controlled electromagnetic environment that enhances antenna gain without requiring changes to the antenna itself.
2Adaptability or versatility
If the antenna size is reduced for modularization, then the modularization is improved, but the antenna gain becomes difficult to increase
Solution Approach 1:
The solution divides the gain-enhancement function from the antenna structure itself, allowing the antenna to remain small and modular while the wave dense medium (with specific dielectric properties and thickness D) provides the gain enhancement externally. This segmentation enables independent optimization of both modularization and gain.
Solution Approach 2:
Instead of increasing antenna gain through traditional dimensional scaling of the antenna elements, the solution moves to another dimension by introducing a wave dense medium with specific dielectric properties. The thickness D of this medium (satisfying 0.5nλg(1-10%)≤D≤0.5nλg(1+10%)) creates a new degree of freedom for gain control without affecting antenna size.
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 Fabry-Perot resonator structure increases antenna gain while maintaining modularization, allowing for thin and structurally sound integration in communications devices.
Implementation Method 1
the wave dense medium forms a Fabry-Perot resonator
Implementation Method 2
a thickness D of the wave dense medium from a surface that is close to the antenna to a surface that is away from the antenna satisfies 0.5nλg(1−10%)≤D≤0.5nλg(1+10%), where n=1, 2, 3, . . . , and λg is a resonance wavelength of an operating band of the antenna in the wave dense medium
Implementation Method 3
there is exactly a phase difference of 180° between the first reflected electromagnetic wave and the third transmitted electromagnetic wave, and this is represented as interference cancelation
Implementation Method 4
When an electromagnetic wave emitted by the antenna enters the wave dense medium from a wave sparse medium located on the side that is of the wave dense medium and that is close to the antenna, the electromagnetic wave undergoes wavelength division for the first time
Implementation Method 5
the Fabry-Perot resonator can implement an anti-reflection effect, and can increase a gain of the antenna
Data Source
AI summary
This application provides a communications device which includes an antenna and a wave dense medium. The wave dense medium is located in an emission direction of the antenna and is spaced apart from the antenna, a dielectric constant of a medium, in the communications device, located on a side that is of the wave dense medium and that is close to the antenna and a dielectric constant of a medium located on a side that is of the wave dense medium and that is away from the antenna are both less than a dielectric constant of the wave dense medium, and a thickness D of the wave dense medium from a surface that is close to the antenna to a surface that is away from the antenna satisfies 0.5 nλ(1−10%)≤D≤0.5 nλg(1+10%), where ag is a resonance wavelength of an operating band of the antenna in the wave dense medium.