F- and P-Shaped Antenna Layout for Omnidirectional IoT Gain
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Solution Overview
Problem
Current wireless antennas lack efficient designs for omnidirectional and high-gain properties, particularly in IoT applications at frequencies like 2.54 GHz, and often require complex configurations to support both transmit and receive operations effectively.
Innovation Solution
The design incorporates a substrate with a ground plane and antenna elements of F-shape and P-shape configurations, each with a feed point and grounding point, which are patterned with conductive materials on a circuit board, allowing for flexible positioning and integration within adapter devices or wireless devices to enhance antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional antenna designs are used, then device complexity is reduced, but antenna gain and omnidirectional performance deteriorate
Solution Approach 1:
The antenna is divided into multiple independent elements (first antenna element and second antenna element) with different geometries (F-shape and P-shape). Each element contributes to different aspects of the radiation pattern, allowing the combination to achieve omnidirectional coverage and high gain that would be difficult to obtain with a single conventional antenna design.
Solution Approach 2:
The patent employs asymmetric geometric shapes (F-shape and P-shape) for the antenna elements rather than symmetric conventional designs. These asymmetric configurations create specific current distributions and radiation characteristics that, when combined, produce omnidirectional patterns with enhanced gain in the horizontal plane.
2Reliability
If F-shape and P-shape antenna elements are used, then omnidirectional and high-gain properties are achieved, but manufacturing complexity increases
Solution Approach 1:
The F-shaped and P-shaped antenna elements are merged onto a single substrate (circuit board), sharing common grounding structures and feed networks. This integration simplifies the manufacturing process compared to assembling separate antenna components, while still achieving the complex omnidirectional radiation pattern through the combined geometry of the two elements.
3Reliability
If ground plane extension is implemented, then antenna gain is improved, but device area increases
Solution Approach 1:
The ground plane is designed with non-uniform characteristics, featuring an extension portion that provides enhanced grounding in specific areas where it most benefits the antenna elements' radiation patterns. This localized enhancement of ground plane quality improves antenna gain and omnidirectional performance without requiring a uniformly large ground plane across the entire circuit board.
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 achieves omnidirectional and high-gain properties with improved signal transmission and reception capabilities, including specific gain patterns and reduced reflection coefficients, supporting both transmit and receive operations effectively across various orientations.
Implementation Method 1
Antennas are implemented to provide transmit and/or receive functionalities
Data Source
AI summary
In some embodiments, an antenna device can include a substrate, a ground plane, and first and second antenna elements each having a shape selected from an F-shape and a P-shape. Each antenna element can include a feed point connectable to an antenna circuit and a grounding point electrically connected to the ground plane.