Space Hopping Phased Array Antenna for Interference Mitigation

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Solution Overview

Problem

Conventional wireless communication systems face interference and inefficiencies due to shared frequency spectrums, leading to suboptimal performance in environments where multiple devices operate within the same frequency band, such as the 2.4 GHz and V-band.

Innovation Solution

The implementation of a transceiver with a space hopping phased array antenna that dynamically adjusts its radiation patterns based on control signals to optimize communication paths, using a hopping sequence that selects and updates radiation patterns based on quality metrics to minimize interference and maximize signal strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple devices operate within the same frequency band, then wireless communication coverage is extended, but interference between devices increases

Engineering Contradiction:
Improvecoverage areaVSAvoidinterference
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent implements dynamic radiation pattern adjustment where the phased array antenna system continuously adapts its beamforming characteristics based on real-time channel conditions. The system dynamically selects from multiple pre-configured radiation patterns to optimize communication while avoiding interference with other devices sharing the frequency band.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies local quality by creating directional beam patterns that concentrate energy in specific spatial directions rather than omnidirectional transmission. This allows the system to provide high-quality communication in targeted directions while reducing interference in other directions where other devices may be operating.

Inventive Principle:
Principle #3Local quality

2Device complexity

If conventional fixed radiation patterns are used, then device complexity is reduced, but communication reliability deteriorates in interference-prone environments

Engineering Contradiction:
Improveantenna configurationVSAvoidcommunication reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system transitions from fixed to dynamic radiation patterns, where the antenna configuration adapts in real-time based on channel conditions. The phased array controller selectively activates different radiation patterns from a pre-configured set, enabling the system to maintain reliable communication in varying interference environments without requiring complex real-time pattern synthesis.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs preliminary action by pre-configuring multiple radiation patterns before operation. During communication, the system selectively chooses from these pre-established patterns based on current channel conditions, avoiding the need for complex real-time pattern generation while maintaining adaptability to changing environments.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If dynamic radiation pattern adjustment is implemented, then communication reliability improves, but device complexity increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidantenna configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system implements dynamic radiation pattern adjustment through a phased array antenna with electronic beamforming capability. The phased array controller dynamically selects from multiple pre-configured radiation patterns based on channel conditions, achieving improved communication reliability while managing complexity through selective pattern activation rather than full real-time synthesis.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent reduces operational complexity by pre-configuring multiple radiation patterns before deployment. During operation, the system simply selects from this pre-established set based on channel conditions, avoiding the computational burden of real-time pattern synthesis while maintaining the benefits of dynamic adaptation for improved reliability.

Inventive Principle:
Principle #10Preliminary action

4Productivity

If frequency spectrum sharing is increased, then spectral efficiency improves, but interference and path obstructions increase

Engineering Contradiction:
Improvespectral efficiencyVSAvoidinterference and obstructions
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by directing communication energy into specific spatial directions through phased array beamforming. This creates localized high-quality communication paths that are less susceptible to interference from other devices sharing the frequency spectrum and reduces the impact of path obstructions by focusing energy around obstacles through directional propagation.

Inventive Principle:
Principle #3Local quality

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 enhances communication reliability and efficiency by spreading data transmission over multiple paths, reducing interference and path obstructions, and allowing simultaneous communication with multiple devices using different antenna configurations.

Implementation Method 1

phased array antenna that is configurable based on control signals to a plurality of different radiation patterns

Methodology Applied
Scientific EffectPhased Array:

Implementation Method 2

The phased array antenna is configurable based on control signals to a plurality of different radiation patterns

Methodology Applied
Scientific EffectBeamforming:

Data Source

PatentUS8170495B2Collaborative pairing transceiver with space hopping phased array antenna and methods for use therewith
Publication Date: 2012.05.01 AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LTD
  • US8170495B2 patent drawing
  • US8170495B2 patent drawing
  • US8170495B2 patent drawing

AI summary

A wireless transceiver includes at least one phased array antenna, that transmits an outbound RF signal containing outbound data to a remote transceiver and that receives an inbound RF signal containing inbound data from the at least one remote RF transceiver, wherein the at least one phased array antenna is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the phased array antenna to hop among a plurality of selected radiation patterns that are collaboratively selected by the wireless transceiver and the remote transceiver via a pairing procedure. At least one RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal.