Dual-Polarized Antenna Stacking Structure for Omnidirectional Coverage
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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 featuring a radiation unit with four radiation sub-patterns on a first substrate, connected through a feed unit with multiple substrates and conductive columns, allowing for ±45° dual polarization and compact structure, enabling omni-directional signal coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single polarization mode is used in transparent indoor ceiling antennas, then the device complexity is reduced, but signal blind zones appear and omni-directional coverage is hindered
Solution Approach 1:
The antenna is divided into four separate radiation sub-patterns (first, second, third, and fourth sub-patterns) arranged in a specific geometric configuration. Each sub-pattern contributes to different polarization components, and together they achieve dual-polarization functionality. This segmentation allows the antenna to cover multiple signal directions and polarizations without requiring a single complex omnidirectional element.
2Length of stationary object
If multiple radiation sub-patterns are integrated into a compact structure, then the antenna profile is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The antenna employs a multi-layer stacked structure where the first substrate containing radiation sub-patterns is positioned above a second substrate containing feed networks and connecting electrodes. The feed networks are nested within the substrate layers, with conductive columns passing through substrates to establish electrical connections. This nesting approach consolidates multiple functional elements into a compact vertical arrangement, reducing the overall antenna profile while maintaining precise electrical connections through the stacked configuration.
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.