Coplanar Multiband Antenna Design for Compact Wireless Devices
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Solution Overview
Problem
Single band antennas in portable wireless communication devices limit flexibility by allowing only one frequency band, leading to increased manufacturing costs and space occupancy when multiple antennas are used for different frequency bands.
Innovation Solution
A multiband antenna design with a planar structure, featuring coplanar L-shaped radiating paths and a main radiating portion with a bent section, allowing for multiple resonance frequencies and reduced space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are used for different frequency bands, then communication system compatibility is improved, but manufacturing cost and device space occupancy increase
Solution Approach 1:
The patent merges multiple frequency band capabilities into a single antenna structure. The planar antenna design incorporates multiple radiating elements and ground planes that can simultaneously support different frequency bands, eliminating the need for separate antennas for each band while maintaining multi-band compatibility
Solution Approach 2:
The antenna is designed with universal functionality to operate across multiple frequency bands. By incorporating specific geometric configurations and multiple radiating paths, the single antenna structure can serve multiple communication systems simultaneously, making it a multi-functional component that replaces what would traditionally require multiple specialized antennas
2Adaptability or versatility
If multiple antennas are used for different frequency bands, then communication system compatibility is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges multiple frequency band capabilities into a single antenna structure. The planar antenna design incorporates multiple radiating elements and ground planes that can simultaneously support different frequency bands, eliminating the need for separate antennas for each band while maintaining multi-band compatibility
Solution Approach 2:
The antenna is designed with universal functionality to operate across multiple frequency bands. By incorporating specific geometric configurations and multiple radiating paths, the single antenna structure can serve multiple communication systems simultaneously, making it a multi-functional component that replaces what would traditionally require multiple specialized antennas
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
The multiband antenna provides four resonance frequencies suitable for various communication systems, reducing device cost and size while enabling compatibility with multiple communication systems.
Implementation Method 1
A multiband antenna design with a planar structure, featuring coplanar L-shaped radiating paths and a main radiating portion with a bent section, allowing for multiple resonance frequencies
Data Source
AI summary
A multiband antenna includes a feeding end, a ground end, and a main body. The main body includes a first radiating path, a second radiating path, a main radiating portion and a transmitting portion. The main radiating portion connected to the feeding end by the first and second radiating paths. The transmitting portion is connected to the main radiating portion and the ground end. The first and second radiating paths, the main radiating portion and the transmitting portion are coplanar.