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A microwave signal generator based on a mixer

A technology of microwave signal and generating device, applied in the field of microwave photonics, can solve problems such as difficulty in obtaining multi-mode signals

Active Publication Date: 2022-03-18
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the optoelectronic oscillator works in a multi-mode state, the initial phase of each mode is random, and there are mode competition and mode-hopping effects in the cavity, so it is difficult to obtain a stable multi-mode signal

Method used

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  • A microwave signal generator based on a mixer
  • A microwave signal generator based on a mixer
  • A microwave signal generator based on a mixer

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Embodiment Construction

[0025] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

[0026] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features,...

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Abstract

The present disclosure provides a microwave signal generation device based on a mixer, including: a microwave local oscillator source, a mixer, a first filter, a laser, an electro-optical modulator, an optical signal delayer, an optical detector, a second Filter, amplifier and passive power splitter, the mixer of the device converts the frequency of the microwave signal generated by the self-excited oscillation of the closed photoelectric feedback loop, and at the same time locks the phase of the microwave signal before and after the frequency conversion, so the self-excited The phase of the microwave signal generated by oscillation is no longer random, and a stable single-mode or multi-mode oscillating microwave signal can be obtained.

Description

technical field [0001] The present disclosure relates to the field of microwave photonics, in particular to a mixer-based microwave signal generation device. Background technique [0002] The function of the microwave signal source is to generate the required microwave signal for radar, communication network, sensing and other microwave systems. Traditional microwave signal sources are usually implemented based on purely electronic means. However, electronics-based methods face the problem of bandwidth bottlenecks, and it is difficult to realize microwave signal sources with large bandwidth and high center frequency. Microwave photonic technology is an interdisciplinary subject that combines electronic technology and photonic technology. It benefits from the advantages of large bandwidth, low loss and anti-electromagnetic interference brought by photonic technology. Microwave signal sources based on microwave photonic technology can overcome pure electronic In order to rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S1/02H01S1/00
CPCH01S1/02H01S1/00G02F1/03
Inventor 李明郝腾飞岑启壮戴一堂石暖暖李伟
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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