Dual-Polarized RF Transceiver Loopback for Phase and Power Calibration
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Solution Overview
Problem
Existing electronic devices face challenges in identifying and controlling the electrical characteristics of transceivers, such as phase and intensity, due to limitations in detecting these characteristics through separate individual probes, which complicates the configuration of phase shifters and power amplifiers.
Innovation Solution
The device includes a first and second RF chip with transceivers of different polarizations, connected via a connection line with switch circuits, allowing for the identification and control of power amplifiers and phase shifters based on RF signals, using a loopback structure to minimize signal deviation and reduce calibration time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate individual probes are used to detect electrical characteristics of transceivers, then measurement capability is provided, but device complexity and chip area increase
Solution Approach 1:
The patent merges the detection function into the existing transceiver structure by utilizing the connection line between transmit and receive transceivers as a loopback path. This eliminates the need for separate individual probes, reducing device complexity while maintaining measurement capability through the integrated loopback structure.
Solution Approach 2:
The connection line between transceivers serves dual purposes: it functions as a signal transmission path during normal operation and as a measurement path for detecting electrical characteristics when configured in a loopback mode. This multi-functionality eliminates the need for dedicated measurement probes, reducing overall device complexity.
2Measurement precision
If separate individual probes are used to detect electrical characteristics, then measurement capability is provided, but chip area increases
Solution Approach 1:
The detection function is merged into the existing transceiver architecture by using the connection line as a loopback path for measurements. This integration eliminates the need for separate probe components, thereby reducing chip area while maintaining the capability to detect electrical characteristics such as phase and intensity.
Solution Approach 2:
The connection line serves multiple functions: signal transmission during normal operation and signal measurement during calibration. This multi-functionality allows the same physical infrastructure to be used for both operational and measurement purposes, eliminating the need for additional chip area dedicated to separate probes.
3Manufacturing precision
If loopback structure is used to connect transceivers, then signal deviation is minimized, but device configuration complexity increases
Solution Approach 1:
Instead of using separate probes to measure transceiver characteristics, the patent inverts the approach by using the transceivers themselves to measure each other through a loopback connection. The transmit transceiver sends signals that are received and measured by the receive transceiver, eliminating the need for external measurement equipment and reducing configuration complexity.
Solution Approach 2:
The transceiver system performs self-measurement through the loopback structure, where each transceiver unit uses the other as a measurement target. This self-service approach eliminates the need for external probes or complex measurement setups, reducing device configuration complexity while maintaining measurement accuracy.
4Measurement precision
If traditional detection methods are used, then electrical characteristics can be identified, but calibration time increases
Solution Approach 1:
The loopback structure enables preliminary measurement of electrical characteristics during the manufacturing or initialization phase. By having the transceivers connected in a loopback configuration, the system can perform calibration measurements before actual operation, identifying and correcting electrical characteristic deviations in advance, thereby reducing calibration time during deployment.
Solution Approach 2:
The loopback structure allows continuous measurement and calibration of electrical characteristics without interrupting the normal operational flow. The system can continuously monitor and adjust phase and intensity characteristics through the loopback path, enabling real-time calibration that reduces overall calibration time compared to traditional discrete measurement methods.
Data Source
AI summary
An electronic device is provided. The electronic device includes a first radio frequency (RF) chip for transmission and reception of RF signals, wherein the first RF chip comprises a first transceiver for transmitting RF signals having first polarization and a second transceiver for transmitting RF signals having second polarization, a second RF chip for transmission and reception of RF signals, wherein the second RF chip comprises a third transceiver for transmitting RF signals having the first polarization and a fourth transceiver for transmitting RF signals having the second polarization, at least one connection line including at least one switch circuit, and electrically connecting the first RF chip and the second RF chip, and at least one processor, wherein the at least one processor is configured to control the at least one switch circuit such that a first transceiver and a fourth transceiver are electrically connected and a second transceiver and a third transceiver are electrically connected through the at least one connection line.