Capped Bowtie Antenna for High-Frequency UWB Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wideband antenna arrangements are complex, expensive, and not suitable for mass production, particularly for high-frequency applications, due to complicated geometries and manufacturing challenges, which limits their performance and efficiency in UWB and MIMO systems.
Innovation Solution
A bowtie antenna arrangement with a simple, compact design featuring a capped bowtie structure that uses a metallic cap and bowtie arm sections, allowing for easy fabrication and low mutual coupling between ports, enabling orthogonal far-field functions and suitable for high-frequency applications up to 300 GHz.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wideband antenna arrangements are used, then antenna performance is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The antenna is divided into distinct functional segments: a bowtie-shaped radiating element with specific arm configurations, a feeding structure with conductive elements, and a substrate support. This segmentation allows each component to be optimized independently while maintaining overall performance, reducing the complexity of the integrated system.
Solution Approach 2:
The patent employs specific geometric parameters of the bowtie arms (lengths, widths, angles) and feeding structure dimensions that are optimized to achieve wideband performance. By carefully controlling these parameters, the antenna achieves broad frequency coverage without requiring complex multi-element arrangements.
2Reliability
If conventional wideband antenna arrangements are used, then antenna performance is achieved, but manufacturing cost increases
Solution Approach 1:
The antenna structure is segmented into manufacturable components that can be fabricated using standard PCB techniques and assembled through conventional methods. The bowtie arms, feeding structure, and substrate are separate elements that can be produced independently and then integrated, enabling cost-effective mass production.
Solution Approach 2:
The antenna design uses planar geometries and standardized structural patterns that can be replicated through printing and lamination processes. The bowtie shape and feeding elements can be copied onto substrate materials using conventional fabrication methods, significantly reducing manufacturing costs compared to custom-formed structures.
3Volume of moving object
If compact antenna design is used, then space efficiency is improved, but radiation efficiency decreases
Solution Approach 1:
The antenna achieves compactness by utilizing three-dimensional spatial arrangement. The bowtie arms are positioned at specific heights above the substrate and oriented at angles that create effective radiation patterns in multiple dimensions. This vertical and angular positioning allows a physically small antenna to achieve the electrical length required for efficient radiation.
Solution Approach 2:
The patent optimizes specific parameters including the height of the bowtie arms above the substrate, the angle of the arms relative to the horizontal plane, and the dimensions of the feeding conductors. These parameter adjustments enable the compact antenna to maintain proper current distribution and impedance matching, preserving radiation efficiency despite reduced physical size.
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 bowtie antenna arrangement achieves high radiation efficiency, reduced manufacturing costs, and improved performance in UWB and MIMO systems, facilitating mass production and flexibility for various applications, including 5G communication and Massive MIMO arrays.
Implementation Method 1
a bowtie antenna arrangement with a simple, compact design featuring a capped bowtie structure that uses a metallic cap and bowtie arm sections, allowing for easy fabrication and low mutual coupling between ports, enabling orthogonal far-field functions and suitable for high-frequency applications up to 300 GHz
Data Source
Figure 1
Figure 1A
Figure 1B
AI summary
The present invention relates to a bowtie antenna arrangement (100) comprising at least one bowtie structure comprising bowtie arm sections (2A1,2A2) made of an electrically conducting material with each an end portion (2Α',2Α') facing an end portion of another bowtie arm section, a base portion (1A) comprising a conducting ground plane, the bowtie structure being connected to a feeding arrangement. The bowtie arm sections (2A1,2A2) are planar, made of a conducting sheet or plate element and are arranged in a bowtie arm section plane located in parallel with, at a first distance (d1) from a first side of the base portion (1A), the, or each, bowtie arm structure being connected to a feeding port on a second side of the base portion (1A). In parallel with, and at a second distance (d2) from the bowtie arm section plane a conducting capping arrangement (4A) is provided in a plane located on a side of the bowtie arm sections opposite to the side at which the base portion (1 A) is located which comprises a cap (4 A) located above the one another facing bowtie end portions (2Α',2Α') of the bowtie arm sections (2A1,2A2) of the bowtie structure in a substantially symmetric or centralized manner with respect to the bowtie end portions.