Frequency Translation Circuit for Jam-Resistant Wireless Links

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Solution Overview

Problem

Existing wireless communication systems face challenges in maintaining effective communication between transceivers in the presence of jamming sources and interference, particularly in converting signals across different frequency bands without compromising functionality or requiring additional operator training.

Innovation Solution

The implementation of frequency translation devices, such as CommThru, which use heterodyne approaches with single or dual mixer methods to convert signals from one frequency band to another, enabling transparent operation across various transceivers and antennas, thus overcoming interference and allowing full utilization of communication capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If frequency translation devices are implemented to convert signals across frequency bands, then communication reliability in the presence of jamming and interference is improved, but device complexity increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a frequency translation device as an intermediary component between the transceiver and the communication channel. This device translates signals from one frequency band to another, allowing communication to bypass jamming sources and interference in the original frequency band. The frequency translation device acts as a mediator that converts the signal path to an alternative frequency domain where communication can proceed reliably.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the frequency parameter of the communication signal by using frequency translation devices. By converting signals from one frequency band to another, the system adapts to varying interference conditions. The frequency translation device modifies the frequency parameter dynamically or statically to match optimal communication conditions, thereby improving reliability without requiring changes to the core transceiver functionality.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If heterodyne approaches with single or dual mixer methods are used for frequency translation, then adaptability across different transceivers and antennas is improved, but device complexity increases

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements frequency translation devices that can work with any transceiver and antenna combination through standardized interfaces. The heterodyne approach with single or dual mixer methods provides a universal solution that adapts to different frequency bands and communication standards. This multi-functional capability allows the same frequency translation device architecture to serve multiple transceivers and antenna types, enhancing system versatility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The frequency translation device employs dynamic frequency conversion capabilities that can adapt to different operating conditions. The heterodyne method allows the device to dynamically adjust translation frequencies and mixing parameters to match the specific requirements of different transceivers and antennas. This dynamic adaptability enables the system to optimize performance across varying communication scenarios without requiring dedicated hardware for each configuration.

Inventive Principle:
Principle #15Dynamics

3Reliability

If frequency translation is implemented to overcome interference, then communication functionality is maintained, but loss of time occurs due to additional signal processing

Engineering Contradiction:
Improvecommunication functionalityVSAvoidsignal processing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The frequency translation device performs signal conversion in advance or in real-time at the point of transmission/reception. By implementing frequency translation at the interface between the transceiver and the communication channel, the system prepares signals for optimal transmission conditions before they encounter interference. This preliminary frequency adjustment ensures that signals are already in the appropriate frequency band when transmitted, minimizing delays.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The frequency translation device operates continuously during communication, maintaining signal conversion without interrupting the communication flow. The heterodyne method enables continuous frequency translation throughout the transmission and reception processes, ensuring that the signal conversion action is ongoing and seamless. This continuous operation minimizes processing delays and maintains uninterrupted communication functionality.

Inventive Principle:
Principle #20Continuity of useful action

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

Enables reliable communication between transceivers by transparently converting signals across frequency bands, maintaining system functionality, and operating without the need for additional operator training, even in the presence of interference, thereby enhancing communication reliability and flexibility.

Implementation Method 1

The frequency translation device includes a frequency up-converter configured to up-convert a frequency f1 of a signal received from the splitter via the relay into a signal with frequency f2

Methodology Applied
Scientific EffectHeterodyne: Heterodyne

Data Source

PatentUS8977215B2Frequency translation device and wireless communication system using the same
Publication Date: 2015.03.10 CMEP MEZZANINE EWA
  • US8977215B2 patent drawing
  • US8977215B2 patent drawing
  • US8977215B2 patent drawing

AI summary

A frequency translation device includes a transmit circuit including a first frequency converter configured to convert a signal at a first frequency into a signal at a second frequency. A receive circuit includes a second frequency converter configured to convert a signal at the second frequency into a signal at the first frequency. A detector circuit is configured to determine when the frequency translation device is receiving a signal, and to route the signal to the transmit circuit or to the receive circuit.