Hybrid Antenna Array Layout for Compact Access Point Isolation
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Solution Overview
Problem
Conventional access points with multiple radios or antenna arrays operating over the same frequency band experience interference, leading to degraded performance due to limited gain and difficulty in maintaining isolation between the arrays.
Innovation Solution
The access point employs a combination of magnetic loop and electric dipole antennas positioned close to each other (within 4 centimeters) while maintaining at least 35 dB of isolation, allowing concurrent operation in the 5 GHz or 6 GHz bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple antenna arrays are positioned close to each other to reduce device size, then the compactness is improved, but the isolation between arrays deteriorates causing interference
Solution Approach 1:
The patent applies local quality by using different antenna types (magnetic loop and electric dipole) with distinct electromagnetic radiation characteristics in different spatial locations. This allows each antenna type to operate with its unique polarization properties, creating local electromagnetic field patterns that minimize mutual interference while maintaining compact positioning within 4 centimeters between antenna elements.
Solution Approach 2:
The patent changes the fundamental parameter of antenna type from uniform electric dipole antennas to a combination of magnetic loop and electric dipole antennas. This parameter change enables operation at the same frequency with different polarization characteristics, achieving at least 35 dB isolation while maintaining close proximity for compact device form factor.
2Device complexity
If conventional antenna types are used in multiple radios, then the device complexity is reduced, but the performance deteriorates due to limited gain and isolation
Solution Approach 1:
The patent changes the antenna type parameter from conventional uniform electric dipole antennas to a hybrid configuration of magnetic loop and electric dipole antennas. This enables concurrent operation of multiple radios in the same frequency band with at least 35 dB isolation, significantly improving performance while maintaining manageable device complexity through systematic integration.
Solution Approach 2:
The patent employs a composite antenna system combining two different antenna types (magnetic loop and electric dipole) with complementary electromagnetic properties. This composite approach leverages the orthogonal polarization characteristics of different antenna types to achieve high isolation ratios, improving overall system performance without requiring excessive structural complexity.
3Productivity
If multiple radios operate concurrently over the same frequency band, then the productivity is improved, but the harmful factors worsen due to interference and degraded performance
Solution Approach 1:
The patent enables concurrent operation of multiple radios by assigning different antenna types with distinct local electromagnetic characteristics to each radio. The magnetic loop and electric dipole antennas create localized field patterns with different polarization orientations, allowing simultaneous transmission in the same frequency band with at least 35 dB isolation, thus improving productivity without significant interference.
Solution Approach 2:
The patent changes the operational parameter from sequential radio operation to concurrent operation by utilizing different antenna type parameters. This enables both radios to transmit simultaneously over the same frequency band by exploiting the orthogonal polarization properties of magnetic loop and electric dipole antennas, achieving high productivity while maintaining acceptable interference levels through inherent 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 configuration enables concurrent operation of radios with different types of antennas, enhancing performance by maintaining sufficient isolation and allowing for efficient network coverage.
Implementation Method 1
The first antenna array includes a plurality of magnetic antennas. The second antenna array includes a plurality of electrical antennas. Each magnetic antenna of the plurality of magnetic antennas is positioned within four centimeters of a respective electrical antenna of the plurality of electrical antennas.
Data Source
AI summary
The present disclosure describes an access point with multiple antenna arrays. The access point includes a first antenna array and a second antenna array. The first antenna array includes a plurality of magnetic antennas. The second antenna array includes a plurality of electrical antennas. Each magnetic antenna of the plurality of magnetic antennas is positioned within four centimeters of a respective electrical antenna of the plurality of electrical antennas.