Multi-Band Antenna Module With Local Dielectrics for Bandwidth and Gain
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Solution Overview
Problem
Antenna modules supporting multiple frequency bands face challenges in optimizing antenna characteristics due to varying dielectric constants required for different frequency bands, leading to suboptimal performance in band widening and gain.
Innovation Solution
The antenna module employs a dielectric substrate with radiating elements for different frequency bands, each covered with dielectrics having higher dielectric constants than the substrate, spaced appropriately to enhance antenna characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If antennas for different frequency bands are disposed on the same substrate, then multi-band communication is enabled, but antenna characteristics such as band widening and gain cannot be optimized for all frequency bands simultaneously
Solution Approach 1:
The patent applies local quality by providing different dielectric materials at different locations on the substrate. Specifically, a first dielectric material with a first dielectric constant is provided for the first antenna (lower frequency band), and a second dielectric material with a second dielectric constant is provided for the second antenna (higher frequency band). This allows each antenna to have locally optimized dielectric properties tailored to its specific frequency band requirements, resolving the contradiction between multi-band capability and optimized antenna characteristics.
2Device complexity
If a single dielectric substrate is used for multiple antennas, then device complexity is reduced, but antenna gain and band widening are compromised due to inability to optimize dielectric constants for each frequency band
Solution Approach 1:
The patent maintains a single substrate structure but introduces local quality variations by providing different dielectric materials in different regions. The first dielectric material and second dielectric material are disposed on the same substrate but at different locations corresponding to different antennas. This approach preserves the simplicity of the single-substrate structure while achieving optimized dielectric properties for each frequency band, thus resolving the contradiction between device complexity and antenna performance.
3Reliability
If dielectric materials with different dielectric constants are used for different frequency bands, then antenna characteristics are optimized, but manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes parameter changes by selecting dielectric materials with distinctly different dielectric constants tailored to specific frequency bands. The first dielectric material has a first dielectric constant optimized for the lower frequency band, while the second dielectric material has a second dielectric constant optimized for the higher frequency band. This parameter-based differentiation enables optimized antenna characteristics for each band while maintaining manufacturability through clear material specification and spatial separation.
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 improves antenna characteristics by individually controlling the surface acoustic wave intensity for each frequency band, achieving increased frequency bandwidth and maintaining antenna gain, while preventing excessive surface acoustic wave influence.
Implementation Method 1
improving antenna characteristics by individually controlling the surface acoustic wave intensity for each frequency band
Data Source
AI summary
An antenna module includes a dielectric substrate, radiating elements disposed in or on the dielectric substrate, and dielectrics. In plan view in a normal line direction of the dielectric substrate, the radiating element is disposed adjacent to the radiating element. The dielectric is disposed to cover the radiating element, and the dielectric is disposed to cover the radiating element. The dielectric is disposed to be spaced away from the dielectric. A frequency band for a radio wave emitted from the radiating element is higher than a frequency band for a radio wave emitted from the radiating element. The dielectrics each have a higher dielectric constant than the dielectric substrate.