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An Integrated 360° Reflective Analog Phase Shifter

A reflective and phase shifter technology, which is applied in the field of phased array radar, can solve the problems of long switching time and large volume, and achieve the effects of reduced processing difficulty, reasonable structural design, and flexible signal control

Active Publication Date: 2019-03-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above, the object of the present invention is to provide an integrated 360 ° reflective analog phase shifter, which integrates multiple functional networks on a ferrite substrate with gyromagnetism, and can realize phase shifting The light weight and miniaturization requirements of the device are conducive to integration with other sub-circuits of the transceiver component; the invention realizes the continuous adjustment of the signal phase in the range of 0-360° by adjusting the external reverse bias voltage, and is based on the gyromagnetic material The excitation of an external magnetic field can change the polarization direction of the electromagnetic wave propagating in the material, thereby changing the direction of signal transmission and isolation of the present invention, thereby making the adjustment and control of the phase shifter more flexible; in addition, the present invention can effectively overcome the traditional ferrite The weight and volume of the phase shifter made of solid materials are too large, and the switching time is long.

Method used

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  • An Integrated 360° Reflective Analog Phase Shifter
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  • An Integrated 360° Reflective Analog Phase Shifter

Examples

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Embodiment 1

[0033] An integrated 360° reflective analog phase shifter, such as figure 1 As shown, it includes a ferrite substrate 9 with gyromagnetism and a signal circulation network integrated on a surface of the ferrite substrate 9, a reflection reactance network, a reverse signal isolation network, a DC voltage bias network and a DC blocking network;

[0034] The center frequency of the 360° reflective analog phase shifter based on ferrite material provided by the present invention works at 10GHz. As a preferred embodiment, the material of the ferrite substrate 9 of the present invention should be nickel ferrite with gyromagnetism Materials, specifically, the electromagnetic parameters of the ferrite substrate 9 in this embodiment are as follows: the saturation magnetization is 2500 Gauss, the ferromagnetic resonance linewidth is 240 Oersted, the relative permittivity is 12.6, and the loss tangent is less than 0.0005; To make the phase shifter suitable for integration with other compo...

Embodiment 2

[0052] combine Figure 6 The illustrated embodiment provides a specific implementation of the ground plane 2, and specifically describes a specific implementation of the present invention integrating the phase shifter formed by various functional networks on the surface of the ferrite substrate 9 and the external circuit substrate 21. installation method:

[0053] In order to enable the circuit part of the present invention to be effectively connected to other working circuits on the external circuit board 21, an accommodating groove 23 is provided at a specific position of the external circuit substrate 21, and the bottom surface of the accommodating groove 23 is metallized to form a uniform metal layer; Then embed the ferrite substrate 9 in the accommodating groove 23, so that the side of the ferrite substrate 9 facing away from the printed circuit is in close contact with the metal bottom surface 22 of the accommodating groove 23, wherein the The groove size of the accommo...

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Abstract

The invention discloses an integrated 360° reflection analog phase shifter, which relates to the field of phased array radar. The phase shifter of the present invention integrates the signal circulation network, the reflection reactance network, the reverse signal isolation network, the DC voltage bias network and the DC blocking network on the surface of a ferrite substrate with gyromagnetism. The pressure can realize the continuous adjustment of the signal phase in the range of 0-360°, and based on the excitation of the external magnetic field, the gyromagnetic material can change the polarization direction of the electromagnetic wave propagating in the material, thereby changing the direction of signal transmission and isolation of the present invention, and then The adjustment and control of the phase shifter are more flexible; the invention can realize the light weight and miniaturization requirements of the phase shifter, and is beneficial to integrate with other sub-circuits of the transceiver component. In addition, the invention can effectively overcome the traditional ferrite The weight and volume of the phase shifter made of materials are too large, and the switching time is relatively long.

Description

technical field [0001] The invention relates to the field of phased array radar, in particular to an integrated 360° reflective analog phase shifter based on a gyromagnetic ferrite material. Background technique [0002] A phase shifter is a two-port microwave device that modulates the phase of a radio frequency signal without causing energy attenuation as much as possible. It is widely used in communication systems, antenna arrays, radar systems, and microwave automatic control systems. As the volume, weight and power consumption requirements of electronic systems are becoming more and more stringent in practical applications in various fields, people's desire to seek various hybrid integrated or monolithic integrated phase shifters with excellent performance and small size is becoming more and more urgent. . [0003] In the prior art, there are usually two different methods for designing a solid-state electronically adjustable analog phase shifter: one is to use the chang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/19
CPCH01P1/19
Inventor 刘颖力高黎文王雨巫崇胜刘谦曾千骞张怀武杨青慧
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA