Folded Dielectric Microstrip Antenna for Multi-Directional Radiation
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Solution Overview
Problem
Conventional microstrip antennas require multiple substrates to radiate electromagnetic waves in multiple directions, leading to increased manufacturing costs and power loss due to complex configurations and connector requirements.
Innovation Solution
A microstrip antenna with radiating patterns formed on a folded dielectric substrate, allowing electromagnetic waves to be radiated in multiple directions while sharing a common feeding point, reducing the need for multiple substrates and simplifying high-frequency circuit connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple dielectric substrates are arranged to radiate electromagnetic waves in multiple directions, then radiation capability in multiple directions is improved, but manufacturing cost increases
Solution Approach 1:
Multiple radiating surfaces that would traditionally require separate dielectric substrates are merged onto a single dielectric substrate. The substrate is folded to form multiple radiating surfaces (first, second, and third radiating surfaces) with different normal directions, allowing electromagnetic waves to be radiated in multiple directions while using only one substrate, thereby reducing manufacturing cost.
Solution Approach 2:
The dielectric substrate is folded along specific lines to transform a planar structure into a three-dimensional structure with multiple radiating surfaces oriented in different directions. This dimensional transformation allows a single substrate to provide radiation capability in multiple directions, resolving the contradiction between versatility and manufacturing cost.
2Adaptability or versatility
If multiple dielectric substrates are connected to high frequency circuits, then radiation in multiple directions is achieved, but connection complexity and power loss increase
Solution Approach 1:
Multiple radiating patterns that would traditionally require separate dielectric substrates and multiple connection points are merged onto a single dielectric substrate. The substrate is folded to create multiple radiating surfaces, and all radiating patterns are connected to a single feeding point through transmission lines formed on the same substrate, thereby simplifying connections and reducing power loss.
3Productivity
If connectors are provided for MSL connection between dielectric substrates, then signal distribution is achieved, but manufacturing cost and power loss increase
Solution Approach 1:
Multiple radiating patterns are integrated on a single dielectric substrate and connected through transmission lines formed directly on the substrate. This eliminates the need for external connectors and MSL connections between separate substrates, thereby reducing manufacturing cost and power loss while maintaining signal distribution capability.
Data Source
AI summary
To provide a microstrip antenna that can radiate electromagnetic waves in two or more different directions while suppressing an increase in manufacturing cost. The microstrip antenna is configured to include: a dielectric substrate 10 that is adapted to be of a folded flat plate shape; two or more radiating patterns 2 for radiating electromagnetic waves; and a connecting pattern 3 for mutually connecting the radiating patterns 2 and feeding electricity from a common feeding point 4 to each of the radiating patterns 2. The radiating patterns 2 and connecting pattern 3 are respectively adapted as microstrip lines formed on the dielectric substrate 10, and the dielectric substrate 10 is folded such that the connecting pattern 3 intersects with a ridge line 5, and has two or more radiating surfaces 10a to 10c of which normal directions are mutually different.