Electromagnetic Decoupling Module for Antenna Isolation
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Solution Overview
Problem
Miniaturized antennas in portable devices face challenges in maintaining efficiency and reducing electromagnetic coupling, which affects their performance and compactness, especially when multiple antennas are integrated in a small space.
Innovation Solution
A device with an electromagnetic decoupling module using a raised structure and electrically conductive vias is implemented between antennas, providing effective decoupling and enhancing compactness by connecting the decoupling module to the microelectronic circuit, thereby reducing electromagnetic interference and improving antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple antennas are integrated in a small space for miniaturization, then device compactness is improved, but electromagnetic coupling between antennas increases
Solution Approach 1:
The patent introduces an electromagnetic decoupling module as an intermediary element positioned between the first and second antennas. This module includes a decoupling element with conductive material that acts as a mediator to block electromagnetic coupling while allowing the antennas to operate in close proximity, thus enabling device miniaturization without sacrificing antenna performance
Solution Approach 2:
The decoupling element is segmented into multiple conductive regions (first conductive region, second conductive region, third conductive region) that are electrically connected through vias. This segmentation allows the decoupling function to be distributed across multiple zones between the antennas, effectively blocking electromagnetic coupling paths while maintaining structural integrity
2Volume of moving object
If antenna size is reduced for miniaturization, then device volume is decreased, but antenna efficiency deteriorates
Solution Approach 1:
The patent transitions from planar antenna design to a three-dimensional structure by positioning the decoupling element vertically between the antennas at different heights. The decoupling module extends in the vertical dimension with conductive regions at different levels, effectively blocking electromagnetic coupling while allowing the antennas to maintain their miniaturized footprint on the substrate
3Object-generated harmful factors
If decoupling module is added between antennas, then electromagnetic coupling is reduced, but device complexity increases
Solution Approach 1:
The patent merges the decoupling function with the existing antenna structure by integrating the decoupling element into the same device housing. The conductive regions of the decoupling element are electrically connected to the antenna grounds through vias, combining the decoupling function with the existing electrical interconnections rather than adding completely separate components
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 solution effectively minimizes electromagnetic coupling between antennas, maintaining high efficiency and compactness, allowing for independent performance characteristics of each antenna and reducing the bulk of the device.
Implementation Method 1
at least one element for connecting said raised structure to said microelectronic circuit
Implementation Method 2
an electromagnetic decoupling module for the first antenna and the second antenna, carried by a third zone of said microelectronic circuit placed between the first zone and the second zone, the electromagnetic decoupling being arranged between the first antenna and the second antenna
Data Source
Figure 1~2a
Figure 2b~3a
Figure 3b~3c
AI summary
The present invention relates to a radio frequency signal transmission and/or reception device comprising at least: • a microelectronic circuit; • a first antenna (10) carried by a first zone of said microelectronic circuit; • a second antenna (20) carried by a second zone of said microelectronic circuit; The device (1) comprises an electromagnetic decoupling module (30) of the first antenna (10) and the second antenna (20), carried by a third zone of said microelectronic circuit disposed between the first zone and the second zone; the electromagnetic decoupling module (30) comprising at least one raised structure and at least one connection element of said raised structure to said microelectronic circuit.