Terahertz full-360-degree reflection type phase shifter based on SiGe process

Abstract

The invention discloses a terahertz full-360-degree reflection type phase shifter based on a SiGe process. By adjusting the structure of the reflection type phase shifter, the insertion loss and the phase shift range performance of the reflection type phase shifter are improved, the reflection type phase shifter which is balanced in power consumption and insertion loss and has a full 360-degree phase shift range is obtained, and the phase shifter with the structure can be applied to a millimeter wave / terahertz phased array system.

Description

technical field [0001] The invention belongs to the field of millimeter wave / terahertz integrated circuits, in particular to a terahertz full 360° reflective phase shifter based on SiGe technology. Background technique [0002] Phased array technology has the functions of beam forming and beam scanning, so it has obvious advantages in communication systems and radar systems, which can significantly improve the signal-to-noise ratio and sensitivity of the system, and reduce the impact on the power and noise of individual devices in the system. Require. Among them, the phase shifter is the most critical module in the phased array system, which can change the phase of the electromagnetic wave in the link to control the beam propagation direction. There are many ways to realize the phase shifter, which can be divided into active and passive according to whether it consumes energy. The active phase shifter is mainly a vector synthesis phase shifter, which obtains the desired ph...

AI Technical Summary

Problems solved by technology

However, the phase shift range of the traditional reflective phase shifter is small, and it is difficult to achieve a full 360° phase shift, which limits the scanning range of the phased array system

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