Stacked Dual-Polarized Antenna for Ceiling Blind Zone Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing transparent indoor ceiling antennas often have only one polarization mode, leading to low profile and signal blind zones, which hinder omni-directional coverage on the horizontal plane.
Innovation Solution
A dual-polarized antenna design with a radiation unit and feed unit, featuring multiple radiation sub-patterns and a compact stacked structure, including substrates and conductive elements for electrical connections, to achieve ±45° dual polarization and omni-directional coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single polarization mode is used in transparent indoor ceiling antennas, then the device complexity is reduced, but signal coverage and reliability deteriorate due to low profile and signal blind zones
Solution Approach 1:
The antenna is divided into multiple radiation units (first radiation unit and second radiation unit) with different polarization directions, allowing each unit to independently cover different spatial zones and eliminate signal blind spots while maintaining overall system reliability
Solution Approach 2:
Multiple radiation units with different polarization modes are integrated into a single antenna structure, combining their coverage areas to achieve comprehensive omnidirectional signal coverage without creating additional separate antenna installations
2Reliability
If multiple radiation units with different polarization directions are used, then signal coverage and reliability are improved, but the device complexity increases
Solution Approach 1:
The first and second radiation units are configured with different polarization directions (first polarization direction and second polarization direction respectively), creating asymmetric radiation patterns that together achieve symmetric omnidirectional coverage
Solution Approach 2:
The antenna system transitions from single-plane radiation to multi-dimensional radiation by introducing radiation units with different polarization directions, effectively adding a dimensional aspect to the radiation pattern to eliminate blind zones
3Stability of the object's composition
If a compact stacked structure with multiple substrates is used, then mechanical stability is improved, but manufacturing complexity increases
Solution Approach 1:
Multiple substrates (first substrate, second substrate, third substrate) are stacked and nested together to form a compact integrated structure, where each substrate serves specific functions and the nested arrangement provides mutual support for enhanced mechanical stability
Solution Approach 2:
The stacked substrate structure serves multiple functions simultaneously: providing mechanical support, enabling electrical connections between radiation units, and facilitating compact integration of feed networks, thereby reducing the need for separate structural components
Data Source
AI summary
A dual-polarized antenna and an electronic device, relates to the technical field of mobile communication. The dual-polarized antenna includes: a radiation unit including a first substrate and a radiation pattern disposed on a side of the first substrate; and a feed unit including a second substrate, wherein the second substrate is disposed on a side of the first substrate away from the radiation pattern; and the radiation unit is electrically connected to the feed unit. The present application provides a dual-polarized antenna with compact space, high structural stability and omni-directional coverage of signals on the horizontal plane by adopting a stacking structure.