Microwave equalizer

An equalizer and microwave technology, which is applied to waveguide-type devices, connecting devices, electrical components, etc., can solve the problems that microwave equalizers fail to function, cannot realize the reconfiguration and change of equalization curves, and achieves the effect of expanding practical applicability.

Inactive Publication Date: 2019-10-01
SOUTHEAST UNIV
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Problems solved by technology

[0004] However, although the above two types of microwave equalizers are different, they have a common feature, that is, they can only be designed for a specific fluctuation curve, and cannot achieve reconfigurable equalization curves. However, for microwave amplifier circuits For example, its amplitude-frequency characteristics will change into a new fluctuation curve as the working time increases, making the microwave equalizer lose its due effect

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character " / " in this article generally indicates that the contextual objects are an "or" relationship.

[0024] An embodiment of the pre...

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Abstract

The invention discloses a microwave equalizer which comprises a substrate and also comprises a coplanar waveguide, a first absorption resistor, a second absorption resistor, a first transmission linebranch and a second transmission line branch disposed on the substrate. The coplanar waveguide comprises a coplanar waveguide signal line and also comprises a first coplanar waveguide ground line anda second coplanar waveguide ground line which are symmetrically placed about the coplanar waveguide signal line, the first transmission line branch on the first coplanar waveguide ground line is connected to the coplanar waveguide signal line through a first absorption resistor, a second first transmission line branch on the second coplanar waveguide ground line is connected to the coplanar waveguide signal line through a second absorption resistor, both the first absorption resistor and the second absorption resistor comprise graphene films, and the reconstruction is achieved by applying a regulation voltage to adjust the resistance value of the graphene film. According to the above equalizer, with the graphene films as the absorption resistors, the online real-time switching between different equalization curves is achieved by controlling the magnitude of the resistance, that is, the reconstruction of the structure is realized, and the practicability of the microwave equalizer is improved.

Description

technical field [0001] The invention relates to the technical field of microelectronic devices, in particular to a method of using a graphene film as an absorption resistor to connect a transmission line stub with a coplanar waveguide intermediate signal line, and to control the size of the absorption resistance by voltage to realize the conversion between different equilibrium curves, thereby A microwave equalizer that adjusts the amplitude-frequency characteristics of microwave signals. Background technique [0002] In the radio frequency system, the microwave equalizer plays a very important role because it can effectively improve the amplitude-frequency characteristics of the system in a wide frequency band and increase its reliability and stability. The microwave equalizer aims at the fluctuation curve of the output power of the microwave amplifier circuit of the system with frequency, and uses impedance elements such as resistors and transmission line stubs to form an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/22H01P5/00
CPCH01P1/22H01P5/00
Inventor 韩磊李江涛秦瑞洁
Owner SOUTHEAST UNIV
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