Microwave phase shifter

A microwave phase shifter and coupler technology, applied in the microwave field, can solve the problems of small phase shift amount and low phase shift accuracy, and achieve the effects of increasing the phase shift amount, improving the phase shifting accuracy, and increasing the working bandwidth

Active Publication Date: 2017-06-23
无锡思恩电子科技有限公司
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is the technical pro

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  • Microwave phase shifter
  • Microwave phase shifter

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] Such as figure 1 As shown, the system frame of the microwave phase shifter based on the photoelectric interchanging device is shown in the figure.

[0025] Such as figure 2 As shown, the structural principle of the intensity-type light modulator control unit is shown in the figure.

[0026] A microwave phase shifter based on a photoelectric interconversion device, comprising a narrow linewidth distributed feedback laser 101 for outputting polarized light; Biased fiber coupler 102, used to convert radio frequency input signal into intensity type optical modulator 104 of light-carrying radio frequency signal, used ...

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Abstract

The invention relates to a microwave phase shifter which is mainly used to solve the technical problem of low phase shift precision and small phase shift in the prior art. The microwave phase shifter comprises a narrow-linewidth distributed feedback laser which is used for outputting polarized light; a polarization-maintaining fiber coupler, an intensity optical modulator, a single-mode fiber coupler and a magneto-optical switch which are connected with the narrow-linewidth distributed feedback laser in sequence; an electric fiber delay line and an electric control piezoelectric ceramic fiber delay line which are connected in parallel with the magneto-optical switch; a single-mode fiber coupler which is connected with the electric fiber delay line and the electric control piezoelectric ceramic fiber delay line; a high-speed photoelectric detector which is connected with the single-mode fiber coupler; and an intensity optical modulator control unit and a radio-frequency signal input port which are connected with the intensity optical modulator. Through the technical scheme, the technical problem is well solved. The technical scheme can be used in industrial production of the microwave phase shifter.

Description

technical field [0001] The invention relates to the field of microwaves, in particular to a microwave phase shifter used in the fields of communication, remote control and telemetry, instrumentation, aerospace equipment, radar imaging, medical instruments and the like. Background technique [0002] A phase shifter is a device or device that controls and adjusts the phase of microwave signals. It is widely used in phased array radar, communication, microwave signal measurement and other fields. Any wave that travels through a transmission medium introduces a phase shift, which was the principle behind the early analog phase shifters. After the development of modern electronic technology, A / D and D / A have been used to realize digital phase shift. But in the microwave field, the phase shifter is mainly in the form of microstrip or ferrite material. With the development of radar, electronic countermeasures and millimeter-wave microwave measurement technology, the high-precisio...

Claims

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Application Information

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IPC IPC(8): H01P1/18
CPCH01P1/18
Inventor 不公告发明人
Owner 无锡思恩电子科技有限公司
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