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Silicon-based integrated high-precision radio-frequency signal stable-phase transmission chip, transmitting end and system

A radio frequency signal, phase-stable transmission technology, applied in transmission systems, electromagnetic wave transmission systems, instruments, etc., to achieve high precision, phase-stable transmission, and cost savings.

Active Publication Date: 2022-01-28
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, a chip-based RF signal phase-stable transmission system based on silicon-based integrated optoelectronic devices has not yet been reported.

Method used

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  • Silicon-based integrated high-precision radio-frequency signal stable-phase transmission chip, transmitting end and system
  • Silicon-based integrated high-precision radio-frequency signal stable-phase transmission chip, transmitting end and system
  • Silicon-based integrated high-precision radio-frequency signal stable-phase transmission chip, transmitting end and system

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Embodiment Construction

[0033] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0034] Such as figure 1 As shown, a silicon-based integrated high-precision radio frequency signal phase-stable transmission system includes a local transmitter, a transmission fiber and a remote receiver. The local transmitter is used to modulate the radio frequency signal into a single-sideband modulated optical signal and transmit it to the remote receiver. At the same time, it receives the single-sideband modulated optical signal reflected back from the remote receiver. The phase shift amount of the phase shifter is used for feedback control to realize the active phase compensation of the radio frequency signal; the remote receiving end is used to receive and demodulate the SSB modulated optical signal transmitted by the local transmitting end to obtain the original radio frequency signal, and Part of the SSB modulated optical signal is reflected back...

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Abstract

The invention discloses a silicon-based integrated high-precision radio-frequency signal stable-phase transmission chip, a transmitting end and a system. Photoelectric devices such as a high-speed electro-optical modulator, a high-speed optical phase shifter, a micro-disk filter, a high-speed photoelectric detector and the like are integrated on a silicon-based photon chip, so that the stable-phase transmission system is integrated and chipped, the power consumption is reduced while the size of the system is reduced, and the cost is saved; a microwave photon phase shifter is formed by adopting a front micro-disc filter, a rear micro-disc filter and corresponding connecting waveguides which are better in filtering performance, and active phase compensation of radio-frequency signals is achieved. A PID (Proportion Integration Differentiation controller is arranged at a local transmitting end, and a Sagnac ring is arranged at a remote receiving end, so that a closed-loop feedback control loop of a stable-phase transmission system is formed, and stable-phase transmission of radio-frequency signals is realized.

Description

technical field [0001] The invention relates to the technical field of integrated optoelectronics, in particular to a silicon-based integrated high-precision radio frequency signal phase-stable transmission chip, a sending end and a system. Background technique [0002] With the rapid development of advanced science and technology fields such as radar systems, deep space detection networks, and very long baseline interferometry (VLBI), high-precision, low-loss, and large-area radio frequency signal phase-stable transmission has become the basis for supporting innovation and breakthroughs in related research fields. key technologies. Compared with traditional methods such as cable transmission and wireless transmission, the fiber-based RF signal phase-stable transmission technology has significant advantages such as large bandwidth, low loss, high reliability, and anti-electromagnetic interference, and has become the most potential technical solution paradigm. The key proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/548G02B6/42
CPCH04B10/548G02B6/4287Y02D30/70
Inventor 张伟锋王彬周朗郑爽刘泉华曾涛龙腾
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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