Antenna Placement Topologies for Wireless Throughput
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Solution Overview
Problem
Current wireless communication devices face challenges in designing multi-band LTE antennas that achieve sufficient bandwidth with good return loss, especially for LTE700/800/900 bands, while also requiring compact size and low cost.
Innovation Solution
The implementation of a combined antenna placement topology that incorporates antenna location diversity, polarization diversity, and type diversity, utilizing multiple antennas across various frequency bands, including WiFi, DECT, ZigBee, and Zwave, to optimize system coverage and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple antennas are used across various frequency bands to optimize system coverage and throughput, then system coverage and throughput are improved, but device complexity increases
Solution Approach 1:
The patent divides the antenna system into multiple independent antenna elements, each designed for specific frequency bands (LTE700/800/900, WiFi, DECT, ZigBee, Zwave). Each antenna is optimized for particular bands, allowing the system to achieve multi-band coverage through segmented design rather than a single complex antenna.
Solution Approach 2:
The patent utilizes three-dimensional space by placing antennas at different locations and orientations within the device housing. Antennas are positioned on different PCB layers and oriented with different polarizations (horizontal and vertical), effectively using spatial dimensions to achieve frequency and polarization diversity without increasing two-dimensional footprint.
2Adaptability or versatility
If antenna bandwidth is increased to cover multiple frequency bands, then frequency coverage is improved, but return loss performance deteriorates
Solution Approach 1:
Rather than using a single wide-bandwidth antenna that compromises return loss, the patent segments the frequency coverage across multiple narrowband antennas. Each antenna is optimized for specific frequency bands, maintaining excellent return loss performance within its designated band while the collective system achieves broad multi-band coverage.
Solution Approach 2:
The patent employs multiple antennas that collectively perform the universal function of covering all required frequency bands. Each antenna specializes in specific bands, but together they provide universal multi-band coverage, allowing the system to maintain high performance across all bands rather than compromising any single band for overall coverage.
3Reliability
If antenna isolation is increased to reduce interference, then signal quality is improved, but antenna placement constraints increase
Solution Approach 1:
The patent achieves antenna isolation by utilizing three-dimensional space and different polarization dimensions. Antennas are placed at different locations, orientations, and PCB layers with horizontal and vertical polarizations. This dimensional separation provides natural isolation without requiring complex shielding or spacing constraints, as the spatial and polarization diversity inherently reduces coupling between antennas.
Data Source
AI summary
A combined antenna placement topology is disclosed herein. The combined antenna placement topology is utilized to get optimized antenna isolation, efficiency, system coverage and throughputs. The combined topology includes antenna location diversity, polarization diversity and antenna type diversity.