Tunable reflective phase shifter based on ferroelectric material

A ferroelectric material and reflective technology, applied in circuits, electrical components, waveguide devices, etc., can solve the problems of high cost, complex structure of reflective phase shifters, large insertion loss of reflective phase shifters, etc.

Active Publication Date: 2021-06-04
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since devices such as varactor diodes and switches need to use additional circuit structures for matching, the structure of the reflective phase shifter is still relatively complicated, the size is also large, and the cost is still high. There are inevita

Method used

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  • Tunable reflective phase shifter based on ferroelectric material
  • Tunable reflective phase shifter based on ferroelectric material
  • Tunable reflective phase shifter based on ferroelectric material

Examples

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Embodiment

[0020] Example: such as figure 1 , figure 2 and image 3As shown, a tunable reflective phase shifter based on ferroelectric materials includes N tunable phase shifting units, N is an integer greater than or equal to 2, and each tunable phase shifting unit includes an input node P11, an output node P12, orthogonal coupler U1, the first reflective load unit RL11 and the second reflective load unit RL12, the first reflective load unit RL11 and the second reflective load unit RL12 respectively have a power supply terminal and a signal terminal, and are orthogonally coupled The input terminal IN of the quadrature coupler CP1 is connected to the input node P11, the isolation terminal ISO of the quadrature coupler CP1 is connected to the output node P12, and the coupling terminal COU of the quadrature coupler CP1 is connected to the signal terminal of the first reflective load unit RL11. The straight-through terminal THR of the cross-coupler CP1 is connected to the signal terminal...

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PUM

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Abstract

The invention discloses a tunable reflective phase shifter based on ferroelectric materials, which comprises a plurality of tunable phase shifting units, and each tunable phase shifting unit comprises an input node, an output node, a quadrature coupler, a first reflective load unit and a second reflective load unit. The first reflective load unit and the second reflective load unit are respectively composed of two inductors and a tunable capacitor, the tunable capacitor comprises a substrate and a metal electrode, the substrate and the metal electrode are rectangular, the metal electrode is stacked on the substrate and completely coincides with the substrate, and the metal electrode is provided with an S-shaped groove extending from the front end to the rear end. The S-shaped groove penetrates through the metal electrode from top to bottom, the S-shaped groove is filled with a barium strontium titanate material, the bottom of the barium strontium titanate material is attached to the substrate, and the left end face and the right end face of the metal electrode are the two ends of the first tunable capacitor. The tunable reflective phase shifter has the advantages of simple structure, small size, low cost, small insertion loss and high working frequency.

Description

technical field [0001] The invention relates to a tunable reflective phase shifter, in particular to a tunable reflective phase shifter based on ferroelectric material. Background technique [0002] Phase shifters are widely used in radar signal simulators, signal generators, phased array systems, electronic countermeasures systems, and communication systems to control the phase of signals. There are two main types of existing phase shifters: loaded phase shifters and reflective phase shifters. Compared with loaded phase shifters, reflective phase shifters are simpler in structure, smaller in size, lower in cost, and more efficient. for a wide range of applications. [0003] At present, microwave and millimeter wave communication systems have widely used reflective phase shifters in the 5G millimeter wave frequency band. Existing reflective phase shifters are mainly realized by varactor diodes, switches, and ferrite electric tuning devices or ferrite magnetic tuning device...

Claims

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Application Information

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IPC IPC(8): H01P1/18
CPCH01P1/181
Inventor 杨家铭黄季甫陆云龙尤阳尤青春陈益
Owner NINGBO UNIV
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