Multi-Layer Antenna Element Structure for Wider Bandwidth
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Solution Overview
Problem
Existing antennas lack wider band characteristics, limiting their operational frequency range and efficiency.
Innovation Solution
The antenna element is designed with a specific configuration involving a feed conductor plate, nonfeed conductor plate, ground conductor, and projecting conductors to interpose dielectrics, enhancing electrostatic capacitance and resonance frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional microstrip antenna structure is used, then the antenna can be manufactured with simple structure, but the band characteristics are narrow
Solution Approach 1:
The antenna structure is divided into multiple conductor plates (ground conductor, feed conductor plate, nonfeed conductor plate) separated by dielectric layers. This segmentation creates multiple resonant cavities that can operate at different frequencies, thereby widening the operational band while maintaining a relatively simple overall structure.
Solution Approach 2:
The invention transitions from a conventional two-conductor microstrip structure to a three-conductor plate structure with multiple dielectric layers, adding a dimensional layer to the antenna design. This multi-layer configuration enables broader band characteristics by creating additional resonant modes without significantly increasing planar footprint.
2Ease of manufacture
If the antenna structure is simplified, then manufacturing is easier, but return loss increases and frequency operation deteriorates
Solution Approach 1:
By segmenting the antenna into multiple conductor plates and dielectric layers, the design achieves better impedance matching and lower return loss. The segmented structure allows for controlled capacitance and inductance distribution, improving frequency operation while remaining manufacturable using standard PCB or laminated techniques.
3Power
If conventional antenna design is used, then device complexity is low, but antenna gain is insufficient
Solution Approach 1:
The multi-conductor plate and multi-dielectric layer configuration adds vertical dimensionality to the antenna, creating multiple resonant cavities. This three-dimensional structure enhances radiation efficiency and antenna gain by utilizing multiple resonant modes simultaneously, while the modular nature keeps the overall configuration manageable.
Solution Approach 2:
The antenna employs composite construction with multiple dielectric materials and conductor configurations. This composite approach allows optimization of electromagnetic properties for enhanced gain, combining different dielectric constants and conductor geometries to achieve superior performance.
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 wider band characteristics with reduced return loss, allowing for improved frequency operation and increased antenna gain.
Implementation Method 1
enhancing electrostatic capacitance and resonance frequencies
Implementation Method 2
enhancing electrostatic capacitance and resonance frequencies
Data Source
AI summary
An antenna element includes a first dielectric, a second dielectric, a ground conductor, a feed conductor plate, and a nonfeed conductor plate. The ground conductor, the feed conductor plate, and the nonfeed conductor plate are positioned in a mentioned order. The ground conductor and the feed conductor plate face each other to interpose the first dielectric. The feed conductor plate and the nonfeed conductor plate face each other to interpose the second dielectric. The antenna element further includes a projecting conductor projecting from the feed conductor plate toward the ground conductor.