Remote RF Transponder for Accurate Reflection Coefficient Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RF communication systems face challenges in accurately detecting changes in reflection coefficients at the output of RF transceivers due to insertion losses introduced by intervening components like long cables, splitters, and hybrids, which can lead to inaccurate measurement of antenna or cable faults.
Innovation Solution
A remote measurement system comprising a remote measurement transceiver and transponder that measures RF parameters directly at the RF device, independent of insertion losses, using an interrogation signal to obtain accurate reflection coefficient measurements without interference from intervening components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a reflection coefficient detector is used to measure the magnitude of the reflection coefficient, then measurement accuracy is improved, but insertion losses from intervening components (cables, splitters, hybrids) cause measurement errors to worsen
Solution Approach 1:
The patent introduces a remote measurement transponder as an intermediary device placed at the antenna location. This transponder receives the RF signal, measures the reflection coefficient locally where insertion loss is minimal, and transmits the measurement data back to the central controller. This intermediary approach eliminates the measurement error caused by insertion loss from long cables and other intervening components between the detector and antenna.
2Measurement precision
If remote measurement is implemented to eliminate insertion loss effects, then measurement accuracy is improved, but device complexity increases due to additional components
Solution Approach 1:
The remote measurement transponder serves multiple functions: it acts as both an RF signal receiver and a measurement device, while also functioning as a communication node that transmits data back to the central controller. By combining these functions into a single device, the patent reduces overall system complexity compared to having separate measurement equipment and communication systems.
3Measurement precision
If measurement components are placed closer to the antenna to avoid insertion loss, then measurement accuracy is improved, but ease of operation worsens due to remote location access difficulties
Solution Approach 1:
The remote measurement transponder continuously monitors the reflection coefficient and automatically transmits measurement data to the central controller. The system provides real-time feedback about antenna and cable conditions, enabling remote diagnostics and fault detection without requiring physical access to the antenna location. This automated feedback mechanism maintains measurement accuracy while preserving ease of operation through remote monitoring capabilities.
Data Source
AI summary
Systems and methods for remote radio frequency device monitoring are provided. In one embodiment, an RF communication system comprises: an RF transceiver system; an RF device coupled to the RF transceiver system by a cable, wherein the RF transceiver system is configured transmit an RF signal to the RF device via the cable; a remote measurement transceiver in communication with a processor of the RF transceiver system; a remote measurement transponder coupled between the cable and the RF device; wherein the processor controls the remote measurement transceiver to transmit an interrogation signal to the remote measurement transponder; wherein the remote measurement transponder determines a first parameter of the at least one RF device based on the RF signal as detected at the RF device, and transmits a response signal to the remote measurement transceiver comprising measurement data; wherein the remote measurement transceiver outputs the measurement data to the processor.