Low-Profile Telecom Antenna Layout for Radiator Interference Control

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Solution Overview

Problem

Current telecommunications antennas face challenges in increasing capacity, reliability, and performance due to signal interference caused by the close proximity of high and low-band radiators, leading to increased costs and aerodynamic drag, which affects the number of mobile devices that can be serviced and the overall efficiency of cellular systems.

Innovation Solution

The design incorporates a high aspect ratio, low profile antenna with alternating unit cells that include low and high-band radiators, strategically spaced to produce a fast roll-off radiation pattern and mitigate interference, while also segmenting radiators to filter unwanted resonances, thereby optimizing signal transmission and reducing aerodynamic drag.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If high and low-band radiators are densely packed within the antenna housing to achieve a low profile, then the aerodynamic drag and sail area are reduced, but signal interference and resonance between radiators increase

Engineering Contradiction:

Improvesail areaVSAvoidsignal interference

Core Design Contradiction:

Area of moving objectVSObject-generated harmful factors

Solution Approach 1:

The antenna is divided into multiple unit cells, each containing segmented radiators. The radiators are further segmented into multiple elements with specific spacing and phasing to reduce mutual coupling and interference while maintaining a compact overall structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the antenna have different radiator configurations optimized for their specific functions. High-band and low-band radiators are arranged with specific spacing and orientations in different unit cells to minimize interference while maintaining performance.

Inventive Principle:

Principle #3Local quality

2Productivity

If additional cell sites are created to increase call carrying capacity, then system capacity improves, but equipment and real estate costs increase

Engineering Contradiction:

Improvecall carrying capacityVSAvoidequipment quantity

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The antenna system integrates both high-band and low-band radiators in a single multi-functional unit, allowing one cell site to serve multiple frequency bands and cover broader geographic areas, thereby reducing the need for additional cell sites and associated equipment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple radiator types (high-band and low-band) are combined into a single integrated antenna system, consolidating functions that would traditionally require separate antennas and cell sites into one unified structure.

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If bandwidth transmitted by radiators is increased to improve capacity, then more users can be serviced, but resonant response and signal interference between radiators increase

Engineering Contradiction:

Improveuser capacityVSAvoidsignal quality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The antenna system employs dynamic beam shaping and electronic phasing control to adaptively manage signal transmission across different bandwidths, reducing resonant effects and interference while maintaining high capacity for multiple users.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Specific radiator elements and spacing act as intermediaries to manage and control the interaction between high and low-band signals, reducing harmful resonant responses while allowing broad bandwidth transmission for high user capacity.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This configuration enhances the capacity and reliability of cellular systems by minimizing signal interference and aerodynamic drag, leading to improved performance and cost-effectiveness by allowing more efficient use of space on cell towers and reducing lease costs.

Implementation Method 1

at least one radiator which transmits RF energy within a bandwidth

Methodology Applied

Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

segmenting radiators to filter unwanted resonances

Methodology Applied

Scientific EffectResonance filtering: Resonance

Implementation Method 3

strategically spaced to produce a fast roll-off radiation pattern

Methodology Applied

Scientific EffectRadiation pattern shaping: Diffraction

Data Source

PatentUS11804662B2Low profile telecommunications antenna

Publication Date: 2023.10.31 JOHN MEZZALINGUA ASSOC LLC

AI summary

A telecommunications antenna comprising a plurality of unit cells each including at least one radiator which transmits RF energy within a bandwidth range which is a multiple of another radiator. The radiators are proximal to each other such that a resonant condition may be induced into the at least one radiator upon activation of the other radiator. At least one of the radiators is segmented into capacitively-connected radiator elements to suppress a resonance response therein upon activation of the other of the radiator.