Multi-Band Antenna Layout With Barrier Feed-Through Nesting
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Solution Overview
Problem
Existing wireless communication devices face challenges in accommodating multi-band antenna systems within limited spaces while maintaining effective communication performance, especially in high-frequency bands like millimeter wave (mmWave) for 5G systems.
Innovation Solution
The design incorporates a multi-band antenna device with a configuration of endfire antennas and a patch antenna, utilizing a barrier with penetration regions to connect radiators across different conductive layers, allowing for efficient signal processing and transmission in multiple frequency bands within a compact space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas for different communication bands are placed adjacent to each other, then multi-band communication capability is achieved, but the device size and space occupation increase
Solution Approach 1:
The patent implements nested radiators where a first radiator for a first communication band is positioned inside or overlapping with a second radiator for a second communication band. This nesting arrangement allows multiple antennas to occupy the same or overlapping spatial regions, enabling multi-band communication capability while significantly reducing the overall area occupied by the antenna device.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by positioning radiators at different depths and orientations. The first radiator extends in a first direction while the second radiator extends in a second direction different from the first direction, creating a multi-dimensional configuration that packs multiple antennas into a compact volume without significant area increase.
2Area of stationary object
If antenna radiators are miniaturized to fit limited space, then space occupation is reduced, but communication performance may deteriorate
Solution Approach 1:
By nesting radiators of different bands within overlapping spatial regions, the patent achieves miniaturization without sacrificing the effective radiating area of individual radiators. Each radiator maintains its functional size for its designated band while sharing the overall device footprint with other radiators, thus preserving communication performance in a compact form factor.
Solution Approach 2:
The patent optimizes the local configuration of each radiator specifically for its communication band requirements. The first radiator is designed with dimensions and orientation optimized for the first band, while the second radiator is independently optimized for the second band. This localized optimization ensures that each radiator delivers reliable communication performance for its specific band despite the overall miniaturization of the antenna device.
3Area of stationary object
If radiators are placed in overlapping regions for space efficiency, then area occupation is reduced, but signal interference between bands may increase
Solution Approach 1:
The patent employs asymmetric orientation where the first radiator extends primarily in a first direction and the second radiator extends primarily in a second direction different from the first direction. This asymmetric angular arrangement creates spatial separation of radiation patterns despite overlapping footprints, reducing mutual coupling and signal interference between different communication bands while maintaining compact area occupation.
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 efficient transmission and reception of RF signals across multiple communication bands, enhancing communication characteristics such as bandwidth and gain, while reducing the physical size of the antenna system.
Implementation Method 1
a barrier including a penetration region, the barrier reflecting the first RF signal and the second RF signal
Data Source
AI summary
An antenna device includes an antenna space, a barrier, a signal processing device, and a feed space. The antenna space includes first and second antennas that transmit/receive first and second radio frequency (RF) signals in different bands. The barrier includes a penetration region, is disposed adjacent to the antenna space, and reflects the first and second RF signals. The signal processing device adjacent to the barrier, includes first and second RF circuits that process the RF signals. The feed space includes first and second feed layers and is disposed adjacent to and stacked on the signal processing device, and adjacent to the barrier. A first feed line connecting the first RF circuit to the first antenna passes through the first feed layer and the penetration region, and a second feed line connecting the second RF circuit to the second antenna passes through the second feed layer and the penetration region.