Rear UWB Patch Antenna Layout for Conductive Electronic Housings
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Solution Overview
Problem
UWB antennas in electronic devices with conductive exteriors face signal degradation due to conductive materials, making it difficult to dispose multiple antennas inside the device.
Innovation Solution
An electronic device with a conductive exterior includes an opening on its rear surface where multiple UWB antennas are positioned, with non-aligned patch antennas disposed within this opening to maintain signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple UWB antennas are disposed inside the electronic device with conductive exterior, then UWB communication capability is improved, but signal quality degrades due to conductive material interference
Solution Approach 1:
The patent extracts the UWB antennas from the interior space of the electronic device and positions them on the rear surface, separating them from the conductive exterior materials that cause signal degradation. This extraction allows the antennas to operate in a region with reduced electromagnetic interference from conductive structures.
Solution Approach 2:
The patent transitions the antenna placement from a two-dimensional interior plane to the external surface of the device. By moving antennas to the rear surface and extending them in specific directions, the patent creates additional spatial dimensions for antenna arrangement, enabling multiple antennas to be disposed without mutual interference while maintaining aesthetic design.
2Measurement precision
If multiple UWB antennas are disposed inside the electronic device, then positioning accuracy for distance and angle measurement is improved, but device complexity increases
Solution Approach 1:
The patent designs the rear surface antenna arrangement to serve multiple functions simultaneously: the same antenna configuration enables both distance measurement and angle-of-arrival measurement. This multi-functionality achieves high positioning accuracy without requiring separate antenna systems for different measurement types, thereby controlling device complexity.
Solution Approach 2:
The patent employs non-aligned and asymmetric antenna arrangements on the rear surface, where antennas are disposed in different directions and positions rather than symmetric patterns. This asymmetric configuration optimizes the measurement capabilities for both distance and angle while maintaining a compact and manageable structural complexity.
3Strength
If the exterior is made of conductive material for aesthetic and structural purposes, then device strength and appearance are improved, but antenna radiation performance degrades
Solution Approach 1:
The patent extracts the antennas from the interior region surrounded by conductive materials and positions them on the rear surface where they are less affected by conductive interference. This extraction maintains the conductive exterior for structural strength and aesthetic purposes while protecting antenna radiation performance.
Solution Approach 2:
The patent introduces non-conductive components such as camera modules and opening structures as intermediary elements between the conductive exterior and the antennas. These intermediaries create electromagnetic isolation zones that protect the antenna radiation performance while allowing the conductive exterior to maintain its structural and aesthetic functions.
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 allows for accurate distance and angle-of-arrival measurements by preventing radiation performance degradation from the conductive exterior, enabling stable UWB communication.
Implementation Method 1
a first patch antenna disposed inside the first region and disposed adjacent to the second camera, and a second patch antenna disposed inside the second region
Data Source
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AI summary
According to various embodiments of the present disclosure, an electronic apparatus comprises: a first camera and a second camera; a communication circuit; a display; a rear plate positioned in a direction opposite to the display; an opening which is formed in a partial area of the rear plate and comprises a first area and a second area, wherein the first camera and the second camera are arranged in the first area, and the second area extends from at least a part of the first area; a first patch antenna arranged inside the first area to be adjacent to the second camera; a second patch antenna arranged inside the second area; and a third patch antenna arranged to be aligned with the second patch antenna in a first direction, wherein the first patch antenna, the second patch antenna, and the third patch antenna may be arranged in a non-aligned manner. Various other embodiments other than various embodiments disclosed in the present document can be possible.