Nested Multi-Antenna System for Orthogonal Polarization
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Solution Overview
Problem
Existing compact multi-antenna designs for wireless devices are limited by their inability to support multiple excitation modes simultaneously, which restricts polarization diversity, radiation patterns, and physical form factor, making them unsuitable for various applications.
Innovation Solution
A compact multi-antenna system comprising multiple radiating bodies configured to operate differentially as dipole, monopole, or combined antennas, with a conductive body, allowing for independent and concurrent operation of multiple antennas with orthogonal polarizations, facilitating efficient use of space and improved communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antennas are used to provide antenna diversity and improve communication quality, then communication reliability is improved, but device size increases
Solution Approach 1:
The patent combines multiple antenna functions into a single integrated structure. The radiating element is configured to support multiple excitation modes (first mode with first polarization, second mode with second polarization) simultaneously, allowing multiple antennas to coexist in one physical structure. This merging approach provides antenna diversity for improved communication reliability while maintaining a compact form factor suitable for portable devices.
Solution Approach 2:
The radiating element serves multiple functions simultaneously: it operates as a first antenna with first polarization in the first excitation mode, and as a second antenna with second polarization in the second excitation mode. The single radiating structure provides universal functionality for multiple antenna operations, enabling both antennas to contribute to communication reliability without requiring separate physical antenna structures.
2Volume of moving object
If a single radiating structure is used to reduce device size, then device compactness is improved, but the ability to support multiple excitation modes simultaneously is reduced
Solution Approach 1:
The patent implements dynamic excitation mode selection where the system can switch between or combine different excitation modes. The radiating element is designed to support both first and second excitation modes simultaneously, with the ability to dynamically activate different modes or their combination based on communication requirements. This dynamic capability allows a compact single radiating structure to adaptively provide multiple antenna functions.
Solution Approach 2:
The patent changes the excitation parameters (polarization, phase, amplitude) of the radiating element to achieve different antenna modes. By adjusting these parameters, the single radiating structure can operate in first excitation mode with first polarization, second excitation mode with second polarization, or a combination thereof. This parameter manipulation enables the compact structure to achieve multi-excitation mode capability without requiring multiple separate radiating elements.
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
Enables simultaneous operation of multiple antennas with distinct polarizations, enhancing communication reliability and bandwidth, while maintaining a compact form factor suitable for portable devices.
Implementation Method 1
the first system and the second system configured to be driven differentially with respect to each other as a dipole antenna
Implementation Method 2
configured as a first antenna; a second antenna comprising the first system and a second system of one or more radiating bodies
Implementation Method 3
the third system is configured to be driven differentially with respect to the conductive body
Data Source
AI summary
A compact multi-antenna, multi-antenna system, and wireless device comprising same are provided. The multi-antenna comprises first, second and third antennas. The second antenna contains the first antenna, and the third antenna contains at least part of the second antenna. The first antenna may be a slot-in-slot or other antenna, the second antenna may be a dipole, and the third antenna may be a dipole or monopole. The multi-antenna system comprises the multi-antenna plus first, second and third transmission systems operatively coupled thereto. The antennas of the multi-antenna and system may be concurrently operated, substantially independently, and may have mutually orthogonal polarizations. Particular antenna and system configurations are also disclosed.