High-Frequency Antenna Element with Selective Coating Layer
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Solution Overview
Problem
High-frequency antenna systems face challenges in downsizing and protecting receiving antenna units when electromagnetic wave absorbers are used, as they can absorb necessary electromagnetic waves, leading to system malfunctions.
Innovation Solution
A high-frequency antenna element configuration that includes a substrate, a dielectric layer, a receiving antenna unit, and a coating layer, where the dielectric layer is laminated on the substrate, the receiving antenna unit is mounted on the dielectric layer, and the coating layer covers the dielectric layer and the receiving antenna unit, specifically contacting and covering the side surfaces and part of the upper surface of the antenna unit, while allowing essential electromagnetic waves to reach the antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an electromagnetic wave absorber is disposed in contact with or in the vicinity of an antenna for receiving electromagnetic waves, then unnecessary electromagnetic waves are absorbed, but electromagnetic waves that should be received by the antenna are also absorbed
Solution Approach 1:
The coating layer is configured with spatially varying properties: it covers the side surfaces of the receiving antenna unit to provide electromagnetic wave absorption, while leaving the upper surface partially exposed to maintain receiving capability. This local differentiation allows different regions of the coating layer to serve different functions - shielding from interference while preserving signal reception.
Solution Approach 2:
The coating layer is segmented into different coverage regions rather than uniformly covering the entire antenna structure. Specifically, it contacts and covers the side surfaces of the receiving antenna unit while allowing the upper surface to remain partially exposed, creating functional segments that address both interference reduction and signal reception requirements.
2Object-affected harmful factors
If an electromagnetic wave absorber is used, then interference is reduced, but downsizing becomes difficult
Solution Approach 1:
The coating layer functions as a thin film electromagnetic wave absorber that can be applied directly to the surface of the receiving antenna unit. This thin film approach provides effective interference reduction without adding significant volume, enabling downsizing of the overall antenna element while maintaining electromagnetic compatibility performance.
3Object-affected harmful factors
If an electromagnetic wave absorber is used, then interference is reduced, but the receiving antenna unit cannot be protected
Solution Approach 1:
The coating layer provides localized protection by covering the side surfaces of the receiving antenna unit, which are typically more vulnerable to environmental damage and interference. The upper surface remains partially exposed to maintain receiving function, creating a balanced protection strategy that safeguards the antenna unit without compromising its operational reliability.
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 enables the high-frequency antenna element to be easily downsized and protects the receiving antenna unit from interference, ensuring reliable operation by selectively absorbing unnecessary electromagnetic waves while allowing necessary waves to be received.
Implementation Method 1
the coating layer covers a surface of the dielectric layer in a portion in which the receiving antenna unit is not mounted while the coating layer is in contact with entire side surfaces of the receiving antenna unit, and the coating layer covers at least a part of an upper surface of the receiving antenna unit
Data Source
AI summary
A high-frequency antenna element that is easily downsized even when an electromagnetic wave absorber is used, and is capable of protecting a receiving antenna unit by covering the receiving antenna unit, and provides a high-frequency antenna module including the high-frequency antenna element. The high-frequency antenna element includes a substrate, a dielectric layer, a receiving antenna unit, and a coating layer, in which the dielectric layer is laminated on the substrate, the receiving antenna unit is mounted on the dielectric layer, the coating layer covers a surface of the dielectric layer in a portion in which the receiving antenna unit is not mounted while the coating layer is in contact with entire side surfaces of the receiving antenna unit, and the coating layer covers at least a part of an upper surface of the receiving antenna unit.