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Adjustable printing plate transformer

A technology for adjusting transformers and transformers, applied in impedance networks, electrical components, multi-terminal pair networks, etc., can solve problems such as small bandwidth, large signal attenuation, and large volume, and achieve the effect of simple structure, high stability, and small volume

Inactive Publication Date: 2014-10-15
王少夫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Adjustable printing plate transformer
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Examples

Experimental program
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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0013] combine figure 1 , the present invention is a kind of adjustable printed board transformer, comprising: connecting port 1 (Port1) to node 1, port 2 (Port2) to node 2, R1, L1 connected in series Between nodes 1 and 2; R2 and L2 are connected in series between nodes 2 and 3; R3 and L3 are connected in series between node 2 and ground; one end of capacitor C1 is connected to node 1; the other end is connected to the ground; one end of the capacitor C2 is connected to the node 3; the other end is connected to the ground; the two ends of the capacitor C12 are respectively connected to the node 1 and the node 3; into 50 ohms. The values ​​of components R1, R2 and R3 are equal; the values ​​of components L1, L2 and L3 are equal; changing the values ​​of capacitors C1 and C2 can adjust the center frequency of the transformer, and changing the value of capaci...

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PUM

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Abstract

The invention discloses an adjustable printing plate transformer. A circuit structure consists of a port 1, a port 2, a resistor, a capacitor and an inductor. The center frequency and the out-of-band transmission zero of the transformer can be adjusted by changing the value of resonance capacitance and the value of coupling capacitance. The bandwidth of the adjustable printing plate transformer can be large; the adjustable printing plate transformer can be widely used for places where 5G (fifth-generation) mobile communication power divider has severe requirements on signal performance; pass-band outside noise can be reduced; and the stability of an electronic circuit is improved.

Description

technical field [0001] The invention belongs to the field of transformer application, in particular to a transformer for realizing an adjustable printed board, belonging 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 printed board 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 in mobile communication technology, the use of adjustable printed board transformers can effectively solve the problems of low system linearity, narrow bandwidth, and large noise outside the passband. However, its design structure can only be used in a specific frequency band, and the bandwidth is...

Claims

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Application Information

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IPC IPC(8): H03H7/01
Inventor 不公告发明人
Owner 王少夫