Compact Dipole Antenna Layout for Multi-Band 4G/5G Coverage
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Solution Overview
Problem
Current antenna structures face challenges in accommodating multiple frequency bands, particularly with the addition of 5G frequency bands, in a limited space, while maintaining efficient signal transmission.
Innovation Solution
A dipole antenna structure with a radiator and grounding element design that utilizes parasitic effects to cover frequency bands from 698 MHz to 960 MHz, 1710 MHz to 2170 MHz, and 3300 MHz to 3800 MHz, allowing for a compact multi-frequency band operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single antenna is used to cover multiple frequency bands, then the device complexity is reduced, but it becomes difficult to accommodate all frequency bands in a limited space
Solution Approach 1:
The radiator is divided into multiple distinct radiating portions (first, second, and third radiating portions) with different geometries. Each portion is designed to resonate at specific frequency bands, allowing the single antenna to cover multiple bands through segmented functional regions rather than requiring multiple separate antennas.
Solution Approach 2:
The antenna structure utilizes three-dimensional spatial arrangement of radiating portions with different orientations and positions. The first radiating portion extends in one direction, the second in another direction, and the third in yet another direction, exploiting spatial dimensionality to achieve multi-band coverage within a compact footprint.
2Adaptability or versatility
If multiple frequency bands are added to support 5G communication, then the communication capability is improved, but the antenna space requirement increases
Solution Approach 1:
The single antenna structure is designed to perform multiple functions by supporting operation across multiple frequency bands including 4G and 5G bands. The different radiating portions are configured to resonate at different frequencies, enabling the antenna to universally serve multiple communication standards without requiring separate dedicated antennas for each band.
Solution Approach 2:
Multiple radiating portions that would traditionally require separate antennas are merged into a single integrated antenna structure. The first, second, and third radiating portions are electrically connected to form one continuous antenna element, combining the functionality of multiple antennas into a single compact unit that supports multiple frequency bands.
3Area of stationary object
If the antenna structure is compacted to save space, then the space utilization is improved, but the signal transmission efficiency may be compromised
Solution Approach 1:
Different regions of the antenna structure are designed with locally optimized geometries to maintain high transmission efficiency at their respective resonant frequencies. Each radiating portion has specific dimensional characteristics tailored to its operating frequency band, ensuring optimal signal transmission efficiency locally while maintaining overall compactness of the complete antenna structure.
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 antenna structure effectively operates across a wide range of frequencies, achieving stable radiation efficiency and power distribution, enabling efficient use of space and supporting both 4G and 5G communication standards.
Implementation Method 1
A dipole antenna structure with a radiator and grounding element design that utilizes parasitic effects to cover frequency bands from 698 MHz to 960 MHz, 1710 MHz to 2170 MHz, and 3300 MHz to 3800 MHz
Data Source
AI summary
An antenna structure includes a substrate, a radiator mounted at one end of a front surface of the substrate, and a grounding element mounted at the other end of the front surface of the substrate. The radiator has a first radiating portion. Two portions of a middle of one end edge of the first radiating portion extend horizontally to form a second radiating portion and a feeding portion. The feeding portion is located above the second radiating portion. A free end of the feeding portion is a feeding end. An upper portion of the other end edge of the first radiating portion extends opposite to the one end edge of the first radiating portion and extends along a rectangular spiral path to form a rectangular spiral third radiating portion.