Hybrid broadband high-precision phase shifter integrated circuit

A technology of integrated circuits and phase shifters, which is applied in the field of hybrid broadband high-precision phase shifter integrated circuits, which can solve the problems of difficult to meet the design requirements of broadband high-precision phase shifters, difficult to guarantee phase shift accuracy at the frequency band edge, and phase dependence, etc. problems, to achieve the effect of improving phase shifting accuracy, expanding phase shifting bandwidth, and reducing insertion loss

Active Publication Date: 2020-02-14
浙江集速合芯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The phase of the traditional switch-type phase shifter depends on the frequency, and the phase shift accuracy at the edge of the frequency band is difficult to guarantee, and it is difficult to meet the design requirements of a broadband high-precision phase shifter

Method used

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  • Hybrid broadband high-precision phase shifter integrated circuit
  • Hybrid broadband high-precision phase shifter integrated circuit
  • Hybrid broadband high-precision phase shifter integrated circuit

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Embodiment Construction

[0034] The purpose and effects of the present invention will become clearer by describing the present invention in detail according to the accompanying drawings and preferred embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] Such as figure 1 As shown, the hybrid broadband high-precision phase shifter integrated circuit proposed by the present invention consists of a π-type L-C phase shifter unit, a 22.5° switch type phase shifter unit, a 45° switch type phase shifter unit, a broadband quadrature signal generator and a quadrant The selection unit and the transformer are cascaded in sequence; among them, the π-type L-C phase-shifting unit generates two phase-shifting states of 5.625° and 11.25° by controlling the 2-bit capacitor array, and the 22.5° and 45° switch-type phase-shifting units are respectively used for Generate 22.5° and 45° phase shift state...

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Abstract

The invention discloses a hybrid broadband high-precision phase shifter integrated circuit, which belongs to the technical field of radio frequency integrated circuits, and is formed by cascading a pi-type L-C phase shift unit, a 22.5-degree switch-type phase shift unit, a 45-degree switch-type phase shift unit, a broadband quadrature signal generator, a quadrant selection unit and a transformer.The pi-type L-C phase shift unit is used for realizing 5.625-degree and 11.25-degree phase shift states; the two switch type phase shift units respectively realize 22.5-degree and 45-degree phase shift states, the quadrature signal generator is used for synthesizing a pair of quadrature differential signals, and the quadrant selection unit switches the positive and negative polarities of the quadrature signals through a switch to realize a 360-degree phase shift range. Compared with a traditional switch type phase shifter, the hybrid phase shifter has the advantages of being wide in band, lowin insertion loss, high in precision and the like.

Description

technical field [0001] The invention relates to the field of radio frequency integrated circuits, in particular to a hybrid broadband high-precision phase shifter integrated circuit. Background technique [0002] The phase shifter is the core module in the analog phased array system, and the broadband high-precision phase shift is also a difficult point in the design of the phased array transceiver chip. The phase of the traditional switch-type phase shifter depends on the frequency, and it is difficult to guarantee the phase shift accuracy at the edge of the frequency band, and it is difficult to meet the design requirements of a broadband high-precision phase shifter. At high frequencies such as the Ka band, large insertion loss requires an additional amplifier to compensate for the gain. Therefore, compared to active structures, chips with integrated passive phase shifters do not have a significant advantage in total power consumption. Contents of the invention [0003...

Claims

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Application Information

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IPC IPC(8): H03H11/16
CPCH03H11/16
Inventor 徐志伟王绍刚李娜雨厉敏高会言张梓江
Owner 浙江集速合芯科技有限公司
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