Hybrid 3D and Planar Antenna Module for Isolation
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Solution Overview
Problem
Communication modules face degraded performance due to electrical or radio interference among antennas, and existing methods to reduce interference, such as increasing antenna distance or lowering radio emissivity, compromise spatial efficiency or performance.
Innovation Solution
A communication module incorporating a combination of plate-shaped and three-dimensional antennas, with integrated circuits to manage signal transmission and reception, and strategically formed slots to enhance isolation between antennas, allowing for selective or simultaneous use of antennas to optimize performance and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between adjacent antennas is increased to reduce electrical or radio interference, then antenna isolation is improved, but spatial efficiency is degraded
Solution Approach 1:
The patent employs both planar (2D) printed antennas and three-dimensional (3D) antennas with different spatial configurations. The 3D antennas extend in the vertical dimension, allowing better spatial separation and isolation without increasing the planar footprint, thus resolving the contradiction between isolation and spatial efficiency.
Solution Approach 2:
Different antenna regions use different structures: planar antennas for certain frequency bands and 3D antennas for others. This local differentiation allows each antenna type to be optimized for its specific function while maintaining overall compactness and isolation.
2Reliability
If the radio emissivity of each antenna is lowered to reduce interference between antennas, then antenna isolation is improved, but communication module performance is degraded
Solution Approach 1:
The patent uses different antenna structures (planar vs. 3D) with different radiation characteristics in different spatial locations. This allows each antenna to maintain optimal emissivity for its intended function while the diverse spatial distribution prevents mutual interference, avoiding the need to lower overall radio emissivity.
Solution Approach 2:
By introducing 3D antennas with vertical radiation patterns, the system achieves frequency and spatial diversity that reduces interference without compromising the radiative efficiency needed for communication performance.
3Area of stationary object
If plate-shaped printed antennas are used, then spatial efficiency is improved, but communication performance degrades when distance to external appliance increases
Solution Approach 1:
The patent combines planar printed antennas with three-dimensional antennas in a hybrid configuration. The 3D antennas provide enhanced radiation performance and longer communication range, while the planar antennas maintain spatial efficiency. Together, they compensate for each other's limitations across different distance scenarios.
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 enhances communication performance by reducing electrical or radio interference, improving transmission and reception characteristics, and maintaining spatial efficiency through the strategic use of plate-shaped and three-dimensional antennas and slots, thereby achieving better antenna isolation and performance.
Implementation Method 1
an integrated circuit electrically connected to the first to fourth antennas, and mounted on the substrate, the integrated circuit being configured to apply current to the first to fourth antennas and to process a transmission or reception signal associated with the first to fourth antennas
Implementation Method 2
a first slot formed between the first antenna and the second antenna, and configured to spatially separate the first antenna and the second antenna from each other
Data Source
AI summary
One embodiment of a communication module can comprise: a first antenna printed on a substrate and provided in a plate shape; a second antenna spaced from the first antenna, printed on the substrate, and provided in a plate shape; a third antenna coupled to the substrate, provided in a three-dimensional shape, and transmitting or receiving a radio wave of a frequency band which is the same as or similar to that of the first antenna; a fourth antenna coupled to the substrate, provided in a three-dimensional shape, and transmitting or receiving a radio wave of a frequency band which is the same as or similar to that of the second antenna; and an integrated circuit electrically connected to the first to fourth antennas, mounted on the substrate, applying currents to the first to fourth antennas, and processing a transmitted or received signal.