Cantilever Antenna Module Layout for Dense Multi-Band Arrays

Solution Overview

Problem

Existing antenna systems face challenges in integrating multiple frequency bands due to limited physical space, particularly with high-density radiating elements, leading to complex array-feeding layers and difficulties in mechanically fitting all required elements within a restricted area.

Innovation Solution

The use of a cantilever-type supporting element to arrange antenna arrays over a chassis, allowing for flexible positioning and separation of radiating and feeding locations, with power distribution means like coaxial cables and baluns, enabling modular and efficient integration of multiple frequency bands.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If high-density radiating elements are integrated into a limited physical space, then the quantity of antenna elements increases, but the device complexity and manufacturing difficulty increase significantly

Engineering Contradiction:

Improvequantity of antenna elementsVSAvoidcomplexity of array-feeding layer

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The antenna system is divided into multiple frequency band modules (first frequency band antenna module and second frequency band antenna module), each handling specific frequency ranges. This segmentation reduces the complexity of integrating all elements into a single structure while maintaining high density where needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent utilizes three-dimensional spatial arrangement by positioning antenna elements at different heights and depths within the chassis cavity. The first antenna array is arranged at a first height while the second antenna array is arranged at a second height, creating vertical layering that increases element capacity without planar congestion.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If multiple frequency band antennas are integrated, then the adaptability of the antenna system improves, but the mechanical fitting difficulty increases due to restricted space

Engineering Contradiction:

Improveintegration of multiple frequency bandsVSAvoidmechanical fitting difficulty

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The antenna system is divided into multiple frequency band modules (first frequency band antenna module and second frequency band antenna module), each handling specific frequency ranges. This segmentation reduces the complexity of integrating all elements into a single structure while maintaining high density where needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first antenna module is nested within the chassis cavity, with the radome extending outward while the antenna elements are positioned inside the cavity space. This nested arrangement allows multiple frequency band antennas to coexist in a compact configuration, fitting restricted mechanical spaces efficiently.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Area of moving object

If antenna elements are positioned closer together to optimize space, then the area utilization improves, but the manufacturing precision requirements increase

Engineering Contradiction:

Improvespace utilizationVSAvoidpositioning precision of antenna elements

Core Design Contradiction:

Area of moving objectVSManufacturing precision

Solution Approach 1:

The patent utilizes three-dimensional spatial arrangement by positioning antenna elements at different heights and depths within the chassis cavity. The first antenna array is arranged at a first height while the second antenna array is arranged at a second height, creating vertical layering that increases element capacity without planar congestion.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

Different regions of the antenna system have different element densities and spacing characteristics optimized for their specific frequency bands. The first frequency band antenna elements have spacing optimized for lower frequencies while the second frequency band elements have spacing optimized for higher frequencies, allowing efficient space utilization without compromising manufacturing precision.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12519245B2Antenna module with flexible arrangement and manufacturing method thereof

Publication Date: 2026.01.06 NOKIA SOLUTIONS (SHANGHAI) CO LTD

AI summary

According to an aspect, an antenna module is provided. The antenna module comprises a chassis which comprises an opening or cavity at least partially. The antenna module further comprises one or more cantilever-type supporting elements which are mechanically connected, at one or more first ends of the one or more cantilever-type supporting elements, to a mechanical fixation location. The antenna module also comprises a first antenna array comprising one or more first antenna elements connected to one or more second ends of the one or more cantilever-type supporting elements for arranging the first antenna array over the opening or cavity. The one or more first antenna elements are mechanically connected to one or more radiating part handers that are assembled on an inner surface of a radome over the chassis. The radome is configured to hold the first antenna array.