Miniaturized Lange type numerical control monolithic integrated phase shifter

Abstract

The invention discloses a miniaturized Lange type numerical control monolithic integrated phase shifter. The phase shifter comprises a Lange coupler and a reflection type phase shift circuit, whereinthe Lange coupler adopts a coupling line broadside coupling mode for coupling, the coupling line forms an annular structure, the reflection type phase shift circuit comprises an inductive load circuitand a capacitive load circuit, the inductive load circuit comprises an inductor, a first transistor and a resistor, the inductor and the first transistor are connected in series, and the first transistor and the resistor are connected in parallel; the capacitive load circuit comprises a capacitor and a second transistor, the capacitor is connected with the second transistor in series, and the second transistor is grounded; the invention provides a miniaturized Lange type numerical control monolithic integrated phase shifter to solve the problems that in a complex phased array circuit, the area is too large due to part of phase shifter structures, and the length-width ratio of a layout is too large, so that integration is not easy.

Description

technical field [0001] The invention relates to the field of semiconductor MMIC technology, more specifically, it relates to a miniaturized Lange type numerically controlled monolithic integrated phase shifter. Background technique [0002] With the continuous development of active phased array radar, people's demand for antenna wave velocity control continues to increase, and the research on control circuits is also more in-depth. [0003] As a key component of beam control, the phase shifter has always been one of the key components in the design of antenna transceiver components due to its many working states and technical indicators, large footprint, high performance requirements, and difficult design and manufacture. The development of phased array radar puts forward higher requirements on the bandwidth of the phase shifter, phase shifting accuracy and integration area. [0004] Reflective phase shifters using Lange couplers are widely used in the design of phase shift...

AI Technical Summary

Problems solved by technology

[0006] The present invention overcomes the deficiencies of the prior art, and provides a miniaturized Lange-type digitally controlled single-chip integrated phase shifter to solve the problem of excessive area and large layout aspect ratio caused by partial phase shifter structures in complex phased array circuits lead to difficult integration problems

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