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Broadband high-precision vector synthesis type phase shifter structure

A vector synthesis, high-precision technology, applied in the field of broadband high-precision vector synthesis phase shifter structure, can solve the problems of unsuitable for large-scale integration and industrial production, narrow frequency band of phase shifter, large phase error, etc., and achieve good linearity Accuracy, excellent phase shifting accuracy, and the effect of improving phase shifting accuracy

Pending Publication Date: 2022-07-29
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Passive phase shifters usually include reflective phase shifters, loaded line phase shifters, switched line phase shifters and switch high-low pass network phase shifters, etc. These types of phase shifters often have narrow frequency bands, loss Not suitable for large-scale integration and industrial production

Method used

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  • Broadband high-precision vector synthesis type phase shifter structure
  • Broadband high-precision vector synthesis type phase shifter structure
  • Broadband high-precision vector synthesis type phase shifter structure

Examples

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Embodiment

[0024] Example: as figure 1 As shown, a broadband high-precision vector synthesis type phase shifter structure includes a quadrature signal generator 100 , a first control module 200 , a second control module 300 and an output network 400 . in:

[0025] The quadrature signal generator 100 is composed of an improved quadrature all-pass network. The input of the quadrature signal generator 100 is a differential signal, and the output of the quadrature signal generator 100 is two differential signals of in-phase and quadrature. The signal generator 100 includes a first capacitor 101, a first resistor 102, a second resistor 103, a first inductor 104, a third resistor 105, a second capacitor 106, a fourth resistor 107, a fifth resistor 108, and a second inductor 109, The sixth resistor 110, the first capacitor 101 and the first resistor 102 are connected in series, the first inductor 104 and the third resistor 105 are connected in series, the second inductor 109 and the sixth resi...

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Abstract

The invention discloses a broadband high-precision vector synthesis type phase shifter structure, which comprises an orthogonal signal generator, a first control module, a second control module and an output network, and is characterized in that the orthogonal signal generator is composed of an improved orthogonal all-pass network; the first control module and the second control module are composed of transistor arrays for respectively controlling the amplitudes and polarities of in-phase and orthogonal signals, and the first control module and the second control module are respectively connected with the orthogonal signal generator; and the output network is respectively connected with the first control module and the second control module.

Description

technical field [0001] The invention belongs to the technical field of electronic circuit design and semiconductor element design, in particular to a broadband high-precision vector synthesis type phase shifter structure. Background technique [0002] Phase shifters are key components of a phased array system. The antenna of a phased array system is usually composed of multiple antenna units. By changing the phase and amplitude of the signal fed into each antenna unit, the aperture illumination function of the antenna array is changed to achieve fast scanning of the antenna beam. The phased array system adopts the method of electrical scanning, which overcomes the shortcomings of slow response of mechanical scanning and poor anti-interference ability, and is widely used in military and automotive radars. At present, domestic microwave on-chip integrated phase shifters and microwave on-chip phased array TR components are relatively weak, and the design and research of high-p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H11/16
CPCH03H11/16
Inventor 许进刘方计淞耀段宇文靳子凡
Owner NORTHWESTERN POLYTECHNICAL UNIV
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