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Numerical control 0-pi phase shifter

A phase shifter and diode bridge technology, applied in the field of 0-π phase shifters, can solve the problems of low linearity, insufficient power capacity of the phase shifter, easy signal distortion, etc. The effect of high power capacity

Pending Publication Date: 2021-04-20
成都美数科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a digitally controlled 0-π phase shifter, which solves the problems of insufficient power capacity, low linearity and easy signal distortion of the current phase shifter

Method used

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  • Numerical control 0-pi phase shifter
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Embodiment Construction

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in...

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Abstract

The invention relates to a numerical control 0-pi phase shifter, which comprises a high-power broadband balun and a diode bridge. The high-power broadband balun is provided with two branches, the P1 end and the P4 end of the diode bridge are connected to the two branches, and the P1 end or the P4 end is further connected with a control voltage end. The radio frequency input end is connected to the other end of the high-power broadband balun; and the P3 end of the diode bridge is connected with the radio frequency output end through the first capacitor, and the P2 end is grounded to realize single-ended radio frequency output. The phase shifter has the advantages that the control voltage can be lower than the signal amplitude, the PIN diode has good linearity, the distortion of the diode attenuator is small, the clutter harmonic is low, the phase inversion precision is good, the power capacity can reach more than 10W, the single-ended output can be realized, the balanced output can also be realized, and the cascade connection is convenient.

Description

technical field [0001] The invention relates to the technical field of electronic devices, in particular to a 0-π phase shifter. Background technique [0002] A phase shifter is a device that can adjust the phase of a wave; the function of a phase shifter is to shift the phase of a signal by an angle. The use of phase shifters to regulate the power flow of sensitive tie lines ensures that the voltage stability will not be damaged due to chain tripping and successive withdrawal of tie lines, which can significantly improve the voltage stability limit. Its working principle is different according to different components. Such as a transistor circuit, a control signal can be added to the input to control the phase shift; in some circuits, the delay of the resistance-capacitance circuit is used to achieve phase shift; in the single-chip control system, the internal timer can also be used to achieve the purpose of phase shift. [0003] With the change of application scenarios, ...

Claims

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Application Information

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IPC IPC(8): H03H7/20
Inventor 杜江
Owner 成都美数科技有限公司
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