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Integrated 360-degree reflection type analog phase shifter

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

Active Publication Date: 2017-05-24
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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  • Integrated 360-degree reflection type analog phase shifter
  • Integrated 360-degree reflection type analog phase shifter
  • Integrated 360-degree reflection type analog phase shifter

Examples

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Embodiment 1

[0034] 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;

[0035] 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

[0054] 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:

[0055] 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-degree reflection type analog phase shifter and relates to the field of phased array radars. According to the phase shifter, a signal loop current network, a reflection reactance network, a reverse signal isolation network, a direct-current voltage bias network and a blocking network are integrated on the surface of a ferrite substrate with gyromagnetism; a signal phase can be continuously adjusted in a range of 0 to 360 degrees by adjusting additional reverse bias voltage; a polarization direction of electromagnetic waves transmitted in a material can be changed by additionally applying magnetic field excitation to a gyromagnetic material, so that signal transmission and isolation directions are changed, and the phase shifter is more flexible to adjust and control; the requirements of light weight and miniaturization on the phase shifter can be realized, and the phase shifter and other sub-circuits of a receiving-transmitting module are easy to integrate; furthermore, the disadvantages of a phase shifter made of a traditional ferrite material that the weight and the volume are too great, the switching time is relatively long and the like can be effectively overcome.

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 Applications(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