Compact UWB Antenna Module Layout for Multi-Band Interference Control
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Solution Overview
Problem
There is a challenge in designing compact electronic devices with wireless communications capabilities that can efficiently cover multiple communications bands while minimizing antenna interference and maintaining satisfactory performance across a range of operating frequencies.
Innovation Solution
The implementation of a wireless circuitry module with a dielectric substrate featuring a triplet of antennas, including a standalone antenna, that utilize parasitic patches and conductive vias to minimize size, along with phased antenna arrays for centimeter/millimeter wave frequency bands, allowing for efficient signal transmission and reception across ultra-wideband and specific frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If antennas are incorporated into electronic devices to provide wireless communications capabilities, then wireless communication functionality is improved, but antenna interference with each other and with components increases
Solution Approach 1:
The antenna system is divided into multiple independent antenna elements arranged in specific configurations (triplet, quadruplet, or sextuplet arrangements). Each antenna element operates independently at different frequency bands, allowing the system to provide comprehensive wireless coverage while minimizing mutual interference through spatial separation and strategic positioning within the device housing.
2Volume of moving object
If compact structures are used for antenna components to satisfy small form factor requirements, then device size is reduced, but antenna performance over a range of operating frequencies deteriorates
Solution Approach 1:
The patent employs three-dimensional antenna configurations where antenna elements are positioned at different heights and orientations within the device housing. This vertical and spatial dimensionality allows compact footprint while maintaining adequate electrical length and radiation patterns for multi-band operation, resolving the conflict between small size and performance.
Solution Approach 2:
Multiple antenna elements are nested within the device housing structure, with antennas positioned in different layers and compartments. The antenna system is integrated into the device architecture itself, with elements embedded in the housing or positioned in dedicated antenna zones, maximizing space utilization while maintaining performance.
3Adaptability or versatility
If multiple antennas are used to cover a growing number of communications bands, then frequency coverage is improved, but device complexity increases
Solution Approach 1:
The antenna system is designed with multi-functional capability where the same physical antenna structure supports operation across multiple frequency bands (ultra-wideband, centimeter wave, millimeter wave). The antenna elements and supporting structures serve dual purposes: providing mechanical support and enabling multi-band wireless communication, thereby reducing overall device complexity despite comprehensive frequency coverage.
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 compact electronic devices to effectively communicate across multiple frequency bands with improved efficiency and reduced interference, optimizing space usage while maintaining performance.
Implementation Method 1
The antenna module may have a dielectric substrate with stacked layers
Implementation Method 2
The patches in the second and third antennas may have extended electrical lengths formed from parasitic patches embedded within the substrate
Implementation Method 3
The patches in the second and third antennas may have extended electrical lengths formed from parasitic patches embedded within the substrate that are coupled to opposing edges of the patches by fences of conductive vias
Implementation Method 4
The first antenna may have an antenna radiating element formed from a patch on the substrate. The second and third antennas may have antenna radiating elements formed from patches on the substrate
Data Source
AI summary
An electronic device may have an antenna module with a triplet of antennas on a substrate. The triplet may include a first antenna with a radiating element formed from a patch on the substrate and second and third antennas having radiating elements formed from patches on that extend across a smaller lateral area than the patch in the first antenna. The patches in the second and third antennas may have extended electrical lengths formed from parasitic patches embedded within the substrate that are coupled to opposing edges of the patches by fences of conductive vias. The antenna module may include phased antenna arrays for conveying centimeter/millimeter wave signals. Signal conductors for the antennas may be distributed across multiple metallization layers of the substrate.