Multi-Band Antenna Layout With Isolators for Signal Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In electronic devices, multiple antennas with overlapping frequency ranges cause cross-interference, reducing communication quality due to restricted size and thickness constraints that necessitate close placement, limiting wireless bandwidth and transmission rates.
Innovation Solution
An antenna system with multiple frequency ranges is designed, incorporating a dielectric substrate and three subantennas (2G, 5G, and 6G) with isolators to reduce cross-interference, utilizing planar inverted-F antenna (PIFA) structures and signal feed lines, and isolators to improve isolation between subantennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple antennas are set in electronic device to obtain large wireless bandwidth, then wireless bandwidth and transmission rates are improved, but cross-interference occurs due to close placement and same or similar working frequencies, reducing communication quality
Solution Approach 1:
The antenna system is segmented into multiple subantennas, each operating at different frequency ranges (first subantenna for first frequency range, second subantenna for second frequency range, third subantenna for third frequency range). This segmentation allows each subantenna to operate independently at its optimized frequency, reducing cross-interference while collectively providing large wireless bandwidth coverage.
Solution Approach 2:
Each subantenna is designed with specific local characteristics optimized for its frequency range, including different radiating element configurations and isolator placements. The isolators are locally positioned between adjacent subantennas to provide frequency-specific isolation, ensuring each antenna operates with optimal performance for its designated frequency band.
2Length of stationary object
If display components are made narrow and thin to meet design requirements, then device thickness is reduced, but antenna size is restricted and multiple antennas must be placed closer together
Solution Approach 1:
The antenna system utilizes the depth dimension within the thin device profile by placing isolators between subantennas in the vertical direction. This allows effective isolation mechanisms to be incorporated without increasing the device's external dimensions, maintaining thinness while reducing cross-interference through three-dimensional spatial arrangement.
Solution Approach 2:
The isolators are nested between adjacent subantennas within the limited space available in the thin device structure. This nesting approach allows isolation functionality to be integrated into the compact antenna assembly without requiring additional external space, enabling effective interference reduction within the constrained form factor.
Data Source
AI summary
An antenna with multi frequency ranges for communication in more bandwidths includes a dielectric substrate, a first subantenna, a second subantenna, a third subantenna, and first, second, and third isolators. The first to third subantennas are connected to the dielectric substrate and connect with signal sources. The first to third isolators are connected to the dielectric substrate and arranged to be between the first to third subantennas, to improve signal isolation between the subantennas. The application also provides an electronic device with the antenna having multiple frequency ranges. The antenna and the electronic device with the antenna enjoys reduced cross-interference between signals of the first subantenna, the second subantenna, and the third subantenna. The disclosure also provides an electronic device with the antenna.