Antenna Module Reflective Superstrate Narrow Gap Phase Regulation
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Solution Overview
Problem
Conventional antenna modules have large dimensions and high costs due to the need for a significant distance between the cover and antenna substrate to regulate wireless signal phase, which limits their compactness and efficiency.
Innovation Solution
The antenna module incorporates a reflective superstrate, antenna substrate, feed conductor, ground layer, and a reflective pattern with a narrow reflection gap (between λ/20 and λ/80) instead of the conventional large distance, allowing for a compact design with improved phase regulation and energy intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a large distance is maintained between the cover and antenna substrate to regulate wireless signal phase, then phase regulation is achieved, but the volume of the antenna module increases
Solution Approach 1:
The patent changes the distance parameter from conventional large distances (λ/4 or λ/2) to a narrow reflection gap of λ/20 to λ/80. This parameter change enables phase regulation to be achieved within a much smaller volume, directly resolving the contradiction between phase regulation precision and antenna module compactness
Solution Approach 2:
The patent introduces a reflective pattern layer as an intermediate dimension between the antenna substrate and cover. This additional reflective layer creates a multi-layer interference structure that enables phase control through the narrow gap, transforming the single-distance constraint into a multi-layer optical path control system
2Manufacturing precision
If a large distance is maintained between the cover and antenna substrate, then phase regulation is achieved, but the manufacturing cost increases
Solution Approach 1:
By changing the distance parameter to a narrow gap (λ/20 to λ/80), the patent reduces material consumption and simplifies assembly requirements. This parameter optimization makes the phase regulation structure more manufacturable and cost-effective while maintaining functional performance
3Volume of stationary object
If a narrow reflection gap is used between the reflective pattern and ground layer, then the antenna module dimensions are reduced, but phase regulation effectiveness must be maintained
Solution Approach 1:
The patent employs a composite structure consisting of the reflective pattern layer, dielectric layer, and ground layer working together in the narrow gap. This composite configuration enables effective phase regulation despite the reduced distance, as each layer contributes to the overall electromagnetic field control and signal reflection characteristics
Solution Approach 2:
The multi-layer structure (reflective pattern + dielectric layer + ground layer) creates additional dimensional complexity that compensates for the reduced gap distance. The electromagnetic waves interact with multiple interfaces within the narrow space, enabling phase control through cumulative reflection and interference effects across the layered structure
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 results in a wide bandwidth, high gain, and high cross-polarization isolation antenna module with reduced dimensions and manufacturing costs, while maintaining effective signal transmission and directivity.
Implementation Method 1
The cover 10 increases reflection number of times of the wireless signal 2 to increase the energy intensity thereof. The cover 10 has a first reflection phase angle Φ1, and the antenna substrate 20 has a second reflection phase angle Φ2.
Implementation Method 2
The present invention relates to an antenna module, and in particular relates to an antenna module having an Electromagnetic Band Gap cover.
Data Source
AI summary
An antenna module is provided for transmitting a wireless signal. The antenna module includes a reflective superstrate, an antenna substrate, a feed conductor, a ground layer and a reflective pattern. The reflective superstrate includes a third surface and a fourth surface, wherein the third surface is opposite to the fourth surface. The antenna substrate includes a first surface and a second surface, wherein the first surface is opposite to the second surface. A feed conductor is disposed on the first surface. The ground layer is disposed on the second surface. The reflective pattern is formed on the third surface and faces the feed conductor, wherein a reflection gap d is formed between the reflective pattern and the ground layer, and the wireless signal has a wavelength λ, and the reflection gap d is between λ/20 and λ/80.