Antenna Stacking for Proximity Wireless Communication
Solution Overview
Problem
Existing proximity wireless communication devices using non-contact near-field wireless communication face challenges with electromagnetic field interference between antennas, leading to increased costs and device size due to the need for ferrite materials, and potential communication failures when high power is transmitted.
Innovation Solution
A proximity wireless communication device design featuring a first and second communication block with antennas arranged in a specific configuration, where the antennas are separated by a predetermined distance to minimize electromagnetic field interference, allowing for parallel communication sessions without the use of ferrite materials, thereby reducing device size and improving communication accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If ferrite is equipped between feed antenna and communication antenna to separate both antennas, then electromagnetic field interference is reduced, but costs increase and housing size increases
Solution Approach 1:
The patent applies dimensionality change by separating antennas in the vertical direction (z-axis) through stacked arrangement. The feed antenna is placed on the first substrate and the communication antenna on the second substrate, creating vertical separation without increasing horizontal footprint. This resolves the contradiction by reducing electromagnetic interference through spatial separation while avoiding the need for ferrite materials and additional housing space.
Solution Approach 2:
The patent segments the antenna system into distinct functional components placed on separate substrates. The feed antenna and communication antenna are divided into different spatial zones (first substrate vs. second substrate), allowing independent optimization of each antenna's performance while minimizing mutual interference without requiring ferrite shielding materials.
2Productivity
If multiple communication sessions are carried out in parallel using multiple antennas, then communication efficiency is improved, but electromagnetic field interference between sessions increases
Solution Approach 1:
The patent enables parallel communication sessions by utilizing vertical stacking to separate different antenna functions in the z-axis dimension. This allows simultaneous operation of feed and communication antennas without significant electromagnetic interference, thereby improving communication efficiency while maintaining signal integrity through spatial isolation.
Solution Approach 2:
The patent implements a nested structure where the communication antenna is positioned within the projection area of the feed antenna structure. The communication antenna unit is nested in the recess of the housing, which is positioned within the projection's footprint. This nested arrangement allows compact integration of multiple antenna functions while maintaining electromagnetic isolation through vertical separation.
3Volume of moving object
If antennas are placed close to each other for compact design, then device size is reduced, but electromagnetic field interference increases
Solution Approach 1:
The patent resolves the contradiction between compact size and electromagnetic interference by transitioning from horizontal to vertical separation. The antennas are stacked in the z-axis direction with the feed antenna on the first substrate and communication antenna on the second substrate. This maintains a compact horizontal footprint while achieving effective electromagnetic isolation through vertical distance, eliminating the need for ferrite materials.
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 stable and efficient wireless communication by reducing electromagnetic field interference between antennas, allowing for simultaneous high-speed data transfer and power transmission without the need for ferrite materials, enhancing communication accuracy and reducing device size and costs.
Implementation Method 1
non-contact near-field wireless communication is carried out between the first antenna and the third antenna through the second plane
Implementation Method 2
non-contact near-field wireless communication is carried out between the second antenna and the fourth antenna through the first plane
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
A proximity wireless communication device includes a first housing and a second housing, and they are provided with respective two antennas. In the first housing, a first antenna and a second antenna are configured to be disposed on different parallel planes, and in the second housing, a third antenna and a fourth antenna are configured to be disposed on different parallel planes. Then, the first antenna and the third antenna carry out non-contact near-field wireless communication facing in proximity and the second antenna and the fourth antenna carry out non-contact near-field wireless communication facing in proximity.