Antenna Module Switching Circuit for RF Cable Misconnection

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Solution Overview

Problem

Outdoor external antennas require careful connection to RF cables to maintain functions like antenna identification and auto cable loss calculation, but careless swapping can lead to loss of these functions, necessitating reinstallation and increased costs.

Innovation Solution

A circuitry using two single pole double throw (SPDT) switches and a switch controller to automatically correct the connection of RF cables to antennas, allowing power and data transmission over existing RF cables without dedicated lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dedicated cables are used to transmit data and power to sensors, then reliability of data transmission is improved, but device complexity and installation cost increase

Engineering Contradiction:
Improvedata transmission reliabilityVSAvoidcable installation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes the existing RF cable perform multiple functions: transmitting RF signals, power, and sensor data. By embedding power and data communication capabilities within the single RF cable infrastructure, the system eliminates the need for separate dedicated cables while maintaining reliable transmission of all signals.

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

Solution Approach 2:

The patent combines power transmission and data communication functions into the existing RF cable system. Instead of using separate cables for power and data, the invention merges these functions into the RF cable that already connects the access point to the outdoor antenna, simplifying installation while ensuring reliable signal transmission.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If RF cables are used for power and data transmission, then ease of installation is improved, but risk of water leakage increases

Engineering Contradiction:
Improveinstallation easeVSAvoidwater leakage risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent makes the existing RF cable perform multiple functions: transmitting RF signals, power, and sensor data. By embedding power and data communication capabilities within the single RF cable infrastructure, the system eliminates the need for separate dedicated cables while maintaining reliable transmission of all signals.

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

3Manufacturing precision

If manual connection verification is performed, then connection accuracy is improved, but installation time increases

Engineering Contradiction:
Improveconnection accuracyVSAvoidinstallation time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent implements automatic detection and correction mechanisms that allow the system to self-verify and self-correct cable connections without manual intervention. The access point automatically detects connection status and the system can autonomously identify and resolve connection issues, eliminating the need for manual verification while ensuring accurate connections.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent incorporates feedback mechanisms where the system continuously monitors connection status and provides real-time information about cable connectivity. This feedback enables automatic detection of incorrect connections and triggers appropriate correction actions, ensuring connection accuracy without requiring manual verification steps.

Inventive Principle:
Principle #23Feedback

4Reliability

If additional cables are installed for power and data, then transmission reliability is improved, but cost increases

Engineering Contradiction:
Improvetransmission reliabilityVSAvoidcable quantity
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent makes the existing RF cable perform multiple functions: transmitting RF signals, power, and sensor data. By embedding power and data communication capabilities within the single RF cable infrastructure, the system eliminates the need for separate dedicated cables while maintaining reliable transmission of all signals.

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

Data Source

PatentUS20250247124A1Circuitry on antenna module, antenna module, and system comprising the same
Publication Date: 2025.07.31 HEWLETT PACKARD ENTERPRISE DEV LP
  • US20250247124A1 patent drawing
  • US20250247124A1 patent drawing
  • US20250247124A1 patent drawing

AI summary

Implementations of the present disclosure relate to circuitry for automatically correcting wrong connection of an antenna to a radio frequency (RF) cable. The circuitry comprises a first single pole double throw (SPDT) switch and a second SPDT switch. The input pole of the first SPDT switch is connected to a first antenna connection line while the input pole of the second SPDT is connected to a second antenna connection line. The first antenna connection line is connected to one of a first RF cable and a second RF cable, while the second antenna connection line is connected to the other of the first RF cable and the second RF cable. The throw, to which the input pole of the first or second SPDT switch is connected, can be changed based on the RF cable to which the input pole is connected. Therefore, the RF cable can be connected to the corrected output to correct the wrong connection automatically regardless of the antenna to which the RF cable is connected.