Antenna Bending Structure for Cross-Polarization Ratio

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Solution Overview

Problem

Current dual-polarized antennas in 5G communication systems face challenges in achieving improved cross-polarization ratio (CPR) performance, which is essential for increasing communication efficiency and reducing production costs, especially with the increasing demand for massive MIMO technology.

Innovation Solution

The proposed solution involves a bending structure on the radiating patch of the antenna, which connects the radiating patch and the coupling patch through a surface-mounted technology (SMT) scheme, enhancing symmetry between antenna ports and improving CPR performance while reducing production costs by eliminating the need for separate support members.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If separate support members are used to connect the radiating patch and coupling patch, then the structural stability is improved, but the device complexity and production cost increase

Engineering Contradiction:

Improvestructural stabilityVSAvoiddevice complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The radiating patch is designed with an integrated bending structure that serves dual purposes: it provides the necessary structural support to connect the radiating patch and coupling patch, while simultaneously maintaining the radiating function. This merging of support and radiating functions into a single integrated structure eliminates the need for separate support members, thereby reducing device complexity and production cost while maintaining structural stability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The bending structure of the radiating patch performs multiple functions: it acts as both a support element to maintain the spatial relationship between patches and as a radiating element for electromagnetic signal transmission. This multi-functionality reduces the total number of components needed in the antenna structure

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Stability of the object's composition

If separate support members are used to connect the radiating patch and coupling patch, then the structural stability is improved, but the manufacturing cost increases

Engineering Contradiction:

Improvestructural stabilityVSAvoidmanufacturing cost

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The radiating patch structure is designed to be self-supporting through its own bending configuration, eliminating the need for additional support members. The structure serves itself by using part of its own geometry to provide the necessary mechanical support, thereby simplifying manufacturing and reducing costs

Inventive Principle:

Principle #25Self-service

3Manufacturing precision

If a bending structure is used to connect the radiating patch and coupling patch, then the symmetry between antenna ports is improved, but the manufacturing complexity increases

Engineering Contradiction:

Improvesymmetry between antenna portsVSAvoiddevice complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The bending structure is strategically designed with specific asymmetrical geometry to achieve symmetrical electromagnetic performance. By carefully controlling the asymmetrical shape and position of the bending structure, the patent achieves balanced impedance and symmetric radiation patterns between the two antenna ports, demonstrating that controlled asymmetry in structure can produce symmetry in electromagnetic characteristics

Inventive Principle:

Principle #4Asymmetry

4Ease of manufacture

If the radiating patch is used as a support structure through bending, then the production cost is reduced, but the structural stability may be compromised

Engineering Contradiction:

Improveproduction costVSAvoidstructural stability

Core Design Contradiction:

Ease of manufactureVSStability of the object's composition

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The bending structure introduces curved geometries in the radiating patch that provide both mechanical support and electromagnetic radiation functions. The curved bending structure distributes mechanical stresses effectively while maintaining the required structural stability for supporting the antenna elements

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS11552400B2Antenna structure and electronic device including the same

Publication Date: 2023.01.10 SAMSUNG ELECTRONICS CO LTD

AI summary

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to embodiments in the present disclosure, an antenna device for dual polarization of a wireless communication system, comprises a print circuit board (PCB); a first feeding line configured to provide a first polarization signal; a second feeding configured to provide a second polarization signal; and a patch antenna comprising a radiating region and cutting regions. Objects corresponding to the cutting regions are disposed to support the radiating region on the PCB.