Antenna with Distributed Strip and Integrated Components
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in miniaturizing antennas and integrated components like batteries, which are essential for compact, low-profile devices such as RFID systems, where the size of antennas often exceeds the physical constraints of the device.
Innovation Solution
The design incorporates a conductor arranged in a distributed strip configuration with a folded line configuration, eliminating the need for coplanar waveguide and microstrip feeds, allowing for a compact antenna structure that fits within a small form factor by utilizing a meander line configuration and a distributed strip configuration, along with an integrated ground plane, to achieve a smaller physical size while maintaining performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If traditional antenna designs are used, then antenna performance is maintained, but antenna size becomes too large for compact devices
Solution Approach 1:
The patent transitions from planar antenna designs to three-dimensional folded and distributed strip configurations. The conductor is folded back on itself multiple times within a compact volume, utilizing the third dimension to achieve the required electrical length while maintaining a small physical footprint. This dimensional transformation allows the antenna to fit within compact devices without sacrificing performance.
Solution Approach 2:
The antenna structure employs nested folding patterns where the conductor is folded back on itself multiple times, creating a compact nested configuration. Each fold contains previous folds within its structure, maximizing the electrical length within the minimum possible volume. This nested arrangement enables the antenna to achieve quarter-wavelength or half-wavelength electrical lengths while maintaining a physical size much smaller than traditional linear antennas.
2Volume of moving object
If antenna size is reduced, then device compactness is improved, but integration of components like batteries becomes difficult
Solution Approach 1:
The patent merges the antenna structure with battery integration by positioning the battery within the folded strip configuration. The distributed strip design creates natural cavities and spaces within its folded geometry that can accommodate the battery. This merging of antenna and power supply functions into a single integrated structure enables compact device design while maintaining both antenna performance and battery integration.
3Device complexity
If coplanar waveguide and microstrip feeds are used, then impedance matching is achieved, but device complexity and size increase
Solution Approach 1:
The patent extracts and eliminates the need for separate coplanar waveguide and microstrip feed structures by directly integrating the feeding mechanism into the folded strip antenna itself. The feed point is incorporated at the center of the folded structure, removing the requirement for additional feed lines and impedance matching networks. This extraction of unnecessary components simplifies the overall device structure while maintaining manufacturing precision for impedance matching.
Data Source
AI summary
An antenna comprises electrical conductors arranged to form a radiating element including a folded line configuration and a distributed strip configuration, where the radiating element can be in proximity to a ground conductor and/or arranged as a dipole. Embodiments of the antenna include conductor patterns formed on a printed wiring board, having a ground plane, spacedly adjacent to and coplanar with the radiating element. An antenna can comprise a distributed strip patterned on a printed wiring board, integrated with electronic components mounted on top of or below the distributed strip, and substantially within the extents of the distributed strip. Mounting of electronic components on top of or below the distributed strip has little effect on the performance of the antenna, and allows for realizing the combination of the antenna and integrated components in a compact form. An embodiment of the invention comprises an antenna including a distributed strip, integrated with a battery mounted on the distributed strip.