Single-Antenna Multi-Radio Synchronization for Interference Control

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Solution Overview

Problem

Existing antenna systems with multiple radios require significant space and coordination, leading to inefficiencies and increased costs, as they struggle to adapt to changes in transmission rates and often suffer from interference.

Innovation Solution

The described system combines multiple radios into a single antenna assembly using passive combiners/splitters, such as Wilkinson power dividers/combiners, allowing simultaneous and synchronized transmission and reception across different frequency channels without direct radio communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple radios are used in an antenna system, then transmission capacity and bandwidth are improved, but space requirements and device complexity increase significantly

Engineering Contradiction:

Improvetransmission capacityVSAvoidtower space

Core Design Contradiction:

ProductivityVSArea of stationary object

Solution Approach 1:

The patent combines multiple radio frequency signals from separate radios into a single antenna assembly using passive combiners/splitters. This merging approach allows multiple radios to operate simultaneously while sharing the same physical antenna space, thereby improving transmission capacity without proportionally increasing tower space requirements.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single antenna assembly serves multiple functions by handling signals from multiple different radios simultaneously. The antenna system becomes universal, capable of supporting multiple frequency channels and transmission paths through the use of passive combining networks, thus reducing the need for separate dedicated antennas for each radio.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If multiple radios operate simultaneously, then bandwidth utilization is improved, but interference and signal quality deteriorate

Engineering Contradiction:

Improvebandwidth utilizationVSAvoidinterference

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The passive combiner network provides isolated signal paths for each radio frequency channel while combining them at the antenna interface. Each radio operates in its own frequency band with dedicated signal routing through the combiner, allowing high bandwidth utilization while maintaining signal quality and minimizing inter-channel interference through frequency-selective signal separation.

Inventive Principle:

Principle #3Local quality

3Productivity

If multiple radios are coordinated for simultaneous operation, then system throughput is improved, but device complexity and cost increase

Engineering Contradiction:

Improvesystem throughputVSAvoidcoordination complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The passive combiner network automatically routes and combines signals from multiple radios without requiring active control or coordination between the radios. The system self-manages signal integration through the passive RF network, eliminating the need for complex coordination protocols, control processors, or inter-radio communication infrastructure, thereby reducing device complexity while maintaining high system throughput.

Inventive Principle:

Principle #25Self-service

4Object-affected harmful factors

If antenna separation is increased to prevent interference, then signal quality is improved, but space requirements and cost increase

Engineering Contradiction:

ImproveinterferenceVSAvoidtower space

Core Design Contradiction:

Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The patent merges multiple radio signals into a single antenna assembly using passive combiners, allowing multiple radios to operate in close proximity without requiring physical separation. The combiner network provides electrical isolation and frequency separation, enabling high signal quality while minimizing the physical space required on the tower structure.

Inventive Principle:

Principle #5Merging (Combining)

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 approach enables efficient, scalable, and synchronized operation of multiple radios from a single antenna, reducing space requirements, minimizing interference, and enhancing throughput while maintaining low costs.

Implementation Method 1

passive combiners/splitters, such as Wilkinson power dividers/combiners, allowing simultaneous and synchronized transmission and reception across different frequency channels

Methodology Applied

Scientific EffectElectromagnetic wave division and combination:

Data Source

PatentUS12347930B2Synchronized multiple-radio antenna systems and methods

Publication Date: 2025.07.01 UBIQUITI INC

AI summary

Multi-radio antenna apparatuses and stations for wireless networks including multiple radios coupled to a single transmit/receive antenna, in which the antenna is highly synchronized by an external (e.g., GPS) signal. These multi-radio antenna systems may provide highly resilient links. Synchronization may allow these apparatuses to organically scale the transmission throughput while preventing data loss. The single transmit/receive antenna may have a single dish or a compound (e.g., a single pair of separate transmitting and receiving dishes) and connections for two or more radios.