Multi-Element End-Fire Antenna for 5G Gain and Bandwidth
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-frequency millimeter wave communications, such as 5G, face signal loss due to easy absorption of RF signals, leading to deteriorated communication quality, requiring specialized antenna technologies to secure gain and Effective Isotropic Radiated Power (EIRP).
Innovation Solution
The antenna apparatus incorporates multiple end-fire antenna patterns with specific shapes and orientations, including dipole and looped patterns, connected via a feed line and ground plane, to enhance resonance and electromagnetic coupling, improving gain and bandwidth while minimizing size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antenna patterns are added to increase gain and bandwidth, then antenna performance is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple end-fire antenna patterns (first, second, and third patterns) into a single integrated antenna apparatus. The first end-fire antenna pattern includes dipole and folded dipole configurations, while the second and third patterns provide additional radiation elements. These patterns are merged through shared feed lines and ground planes, achieving improved gain and bandwidth without proportionally increasing overall structural complexity.
Solution Approach 2:
The antenna patterns are arranged in a nested configuration where the first end-fire antenna pattern is positioned between the second and third patterns. The feed line structure is nested to electrically connect all three patterns through shared pathways. This nesting allows multiple antenna functions to be packed into a compact arrangement, improving performance while controlling the physical footprint and structural complexity.
2Reliability
If antenna gain is increased to compensate for signal loss, then communication quality is improved, but Effective Isotropic Radiated Power (EIRP) requirements become more stringent
Solution Approach 1:
The patent merges multiple antenna patterns that radiate in the same end-fire direction to achieve constructive interference and increased gain. The first pattern with dipole elements, combined with the second and third patterns, creates a unified radiation system that amplifies the effective signal strength without requiring proportional increases in input power, thereby improving communication quality while managing EIRP constraints.
3Reliability
If antenna size is increased to improve performance, then gain and bandwidth are enhanced, but device miniaturization goals are compromised
Solution Approach 1:
The antenna patterns are arranged in a nested configuration where the first end-fire antenna pattern is positioned between the second and third patterns. The feed line structure is nested to electrically connect all three patterns through shared pathways. This nesting allows multiple antenna functions to be packed into a compact arrangement, improving performance while controlling the physical footprint.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement to position antenna patterns at different heights and orientations. The first pattern includes vertical dipole elements, while the second and third patterns are positioned at different elevations. This dimensional arrangement allows multiple radiation patterns to coexist in a compact volume, achieving enhanced gain and bandwidth without proportional size increase.
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 solution significantly improves antenna performance by increasing gain and bandwidth, reducing signal loss, and maintaining high-frequency communication quality without substantial size increase, effectively addressing the challenges of high-frequency signal absorption.
Implementation Method 1
an antenna apparatus includes: a feed line; a ground plane disposed around a portion of the feed line; a feed via electrically connected to the feed line; a first end-fire antenna pattern disposed in front of the ground plane to be spaced apart from the ground plane, and electrically connected to the feed via
Implementation Method 2
The antenna apparatus incorporates multiple end-fire antenna patterns with specific shapes and orientations, including dipole and looped patterns, connected via a feed line and ground plane, to enhance resonance and electromagnetic coupling, improving gain and bandwidth while minimizing size
Data Source
AI summary
An antenna apparatus may include: a feed line; a ground plane disposed around a portion of the feed line; a feed via electrically connected to the feed line; a first end-fire antenna pattern disposed in front of the ground plane to be spaced apart from the ground plane, and electrically connected to the feed via; a second end-fire antenna pattern electrically connected to the feed line and disposed farther forward than the first end-fire antenna pattern; and a third end-fire antenna pattern electrically connected to the feed via, and disposed in front of the first end-fire antenna pattern in such a manner that a portion of the third end-fire antenna pattern overlaps the second end-fire antenna pattern.