Adjustable transformer

Abstract

The invention discloses an adjustable transformer. A circuit structure is composed of a port 1 (Port 1), a port 2 (Port 2), resistors, capacitors and inductors, wherein coupling is existed between two inductors, two circuit units are connected through a coupling capacitor, and the central frequency and out-of-band transmission zero point of the transformer can be regulated through changing values of a resonant capacitor and a coupling capacitor. The adjustable transformer can realize wide band width and can be broadly used for 5G mobile communication power dividers and the like which are strict in signal performance; the adjustable transformer is capable of reducing the out-of-band noise and improving the electronic circuit stability.

Description

technical field [0001] The invention belongs to the field of transformer application, in particular to an adjustable transformer, which belongs to the field of electronics and communication. Background technique [0002] In the field of transformers, improving the short-circuit resistance of transformers is a key measure to improve the reliability of power grid operation. Highly adjustable transformers are increasingly favored by power users because of their strong short-circuit capabilities. In recent years, a series of studies on transformers have been carried out at home and abroad. A lot of research results have been obtained, especially when used in mobile communication technology, the use of adjustable transformers can effectively solve the problems of low linearity, narrow bandwidth, and large noise outside the passband of the system. However, its design structure can only be used in a specific frequency band, and the bandwidth is small, and the signal attenuation is...

AI Technical Summary

Problems solved by technology

However, its design structure can only be used in a specific frequency band, and the bandwidth is small and the signal attenuation is large, so the number of power amplifiers has to be increased, making the system larger and less versatile

At the same time, due to its structural problems, the traditional transformer is extremely sensitive to temperature, and its applicability is greatly limited.

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