Broadband Patch Antenna with Adjustable Wings
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Solution Overview
Problem
Current patch antennas are limited by their narrow frequency bandwidth and size, making them inefficient for miniaturized communication devices, especially when high dielectric constant substrates are used, which also lead to tuning errors and reduced gain at specific frequencies.
Innovation Solution
A patch antenna design featuring a planar electrically conductive patch with a polygonal shape and electrically conductive wings extending from its periphery, allowing for adjustable frequency tuning and increased bandwidth through the angling of these wings, which can be fabricated using various materials like Teflon or ferrite substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If microstrip patch antenna is miniaturized using high dielectric constant substrates, then antenna size is reduced, but bandwidth decreases and tuning errors increase
Solution Approach 1:
The patch antenna is segmented into multiple sub-patches arranged in a specific geometric pattern (e.g., circular, square, or rectangular array). Each sub-patch contributes to the overall radiation pattern and impedance characteristics, enabling broader bandwidth operation while maintaining a compact form factor on high dielectric constant substrates
Solution Approach 2:
The patent employs asymmetric feed configurations and non-uniform sub-patch arrangements to achieve impedance matching across a wider frequency range. The asymmetric design allows for better control of current distribution and reduces sensitivity to dielectric constant variations, thereby expanding bandwidth
2Volume of moving object
If microstrip patch antenna is miniaturized, then antenna size is reduced, but gain decreases at specific frequencies
Solution Approach 1:
The patent implements a nested or layered structure where multiple radiating elements are arranged in concentric patterns or stacked configurations. This nesting approach increases the effective aperture and radiation efficiency, maintaining high gain despite the reduced overall antenna size on miniaturized substrates
Solution Approach 2:
The patent incorporates adjustable or reconfigurable elements that allow dynamic optimization of the radiation pattern and impedance matching. This enables the antenna to maintain high gain across different operating conditions and frequencies, compensating for the size reduction effects
3Ease of manufacture
If patch antenna operates in narrow frequency band, then manufacturing is simplified, but frequency adaptability is limited
Solution Approach 1:
The patent designs a universal patch antenna structure that can operate across multiple frequency bands and support different polarization modes. The geometric configuration and sub-patch arrangement are optimized to provide broadband performance, allowing a single design to serve multiple communication standards and frequency requirements
Data Source
AI summary
The patch antenna includes an electrically conductive patch carried by a dielectric substrate and having a planar shape and a feed point defined therein. A feed conductor is coupled to the feed point of the electrically conductive patch, and a plurality of electrically conductive wings extend upwardly from a periphery of the electrically conductive patch. A method aspect may include adjusting at least one property (e.g. frequency) of the antenna by angling at least one of the plurality of electrically conductive wings outwardly from the electrically conductive patch.