Antenna Arrangement Isolation via Resonant Field Nulling
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Solution Overview
Problem
Modern mobile devices with multiple antennas in close proximity experience power leakage, leading to communication issues like de-sensing or jamming due to inadequate isolation between radio systems.
Innovation Solution
The solution involves strategically positioning and configuring antennas, such as a cellular antenna and a TV antenna, so that a portion of one antenna's radiator component is adjacent to a portion of the other, with specific resonant frequencies aligned to minimize electric field maxima and maximize isolation, thereby reducing electromagnetic coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If antennas are placed in close proximity to reduce device size, then device compactness is improved, but electromagnetic isolation between antennas deteriorates causing power leakage and communication problems
Solution Approach 1:
The patent applies local quality by positioning specific portions of antenna radiators (first portion of first radiator, second portion of second radiator) in close proximity while ensuring these portions correspond to minimum electric field regions at their respective resonant frequencies. This localized strategic placement allows compact antenna arrangement while maintaining electromagnetic isolation, as the minimum electric field regions naturally reduce coupling effects between adjacent antennas.
2Object-affected harmful factors
If additional isolation components are added to improve antenna isolation, then electromagnetic coupling is reduced, but device complexity and cost increase
Solution Approach 1:
The patent employs self-service by designing the antenna system to achieve its own electromagnetic isolation through proper radiator configuration and positioning. The antenna radiators are configured such that their minimum electric field regions are adjacent to each other, creating natural isolation without requiring additional components like isolation barriers, filters, or shielding structures. This self-isolating design reduces device complexity and cost while maintaining effective antenna isolation.
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 approach ensures effective antenna isolation, allowing closely spaced antennas to operate properly without additional components, maintaining device size and reducing complexity and cost.
Implementation Method 1
The first portion of the first radiator corresponds to at least one minimum electric field region of at least one resonant frequency of the first radiator. The at least one resonant frequency of the first radiator overlaps with the at least one operational frequency range.
Implementation Method 2
The first portion of the first radiator component is located at a separation distance from the second portion of the second radiator component. The second radiator component is configured with at least one operational frequency range.
Data Source
AI summary
An apparatus for antenna arrangement isolation is described. The apparatus includes a first antenna element (for example, a CMMB TV antenna) having a first radiator component and a second antenna element (for example, a cellular antenna) having a second radiator component. A first portion of the first radiator component is adjacent to a second portion of the second radiator component. The second radiator component is configured with at least one operational frequency range. The first portion of the first radiator corresponds to at least one minimum electric field region of at least one resonant frequency of the first radiator. The at least one resonant frequency of the first radiator overlaps with the at least one operational frequency range. Methods, Apparatus and Computer readable media for providing the antenna arrangement are also described.