SU1464219A2 - Transformer arrangement - Google Patents

Abstract

The invention relates to radio engineering. The aim of the invention is to expand the bandwidth. The transformer device contains two three-wire lines with conductors 1 and 2, forming an up-winding with clips 3 and a step-down winding, the midpoint of which is connected to the common bus 4. The device contains a reactive two-port 5, an additional fourth conductor in the second three-wire line 2, the end of which forms the output 6, and a reactive quadrupole 7, with the first output terminal of which the beginning of the additional fourth conductor of line 2 is connected. As a result of these connections, it is ensured at the same time of transformation and balancing in the extended frequency range. 1 il.

Description

2.1 2.1 2.3 2

; The invention relates to radio engineering, in particular to the design and manufacture of high-frequency transformers and is an improvement of the device according to the authors. St. No. 1277226.

The aim of the invention is to expand the bandwidth.

The drawing shows an electrical: device diagram for a particular case of conductor carrying out coaxial lines.

The transformer device contains two three-wire lines: the first - conductors 1.1., 1.2, and 1.3, the second - conductors | 2.1, 2.2 and 2.3, forming an upward winding with clamps 3.1 and 3.2 and a lowering winding, the midpoint of which is dinene with common busbar (wire) 4, reactive two-port 5, additional fourth conductor 2.4, the end of which: forms output 6, and reactive four-; pole 7.

; Transformer device works: in the next, im image.

I When electrical oscillations are applied | to terminals 3.1 and 3.2, the beginning of the conductor 11.3 and the end of the conductor 2.3 have zero; the potential relative to the common wire 4.; Then between conductors 1.2 and 1.3, as well as conductors 2.2 and 2.3, a segment is formed: a short-circuited two-wire line at the end. These segments act as connected, inductive successive branches: in the transmission circuit from input 3.1 and 3.2 to input 8 of the reactive quadrupole 7. Contracted, the reactive two-pole 5 is transformed (depending on the location of the connection) to the end of the conductor 1.3 and the beginning conductor 2, 3. At the same time here

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five

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antiphase voltage, so that the average point of the recalculated resistance will be at zero potential, i.e. resistance acts as a shunt element. Formed L-shaped link extends the working frequency band. Further, the oscillations arrive at the input 8 of the quadrupole 7. This quadrupole introduces additional filtering. From its output 9, oscillations along the matched line (conductors 2.2 and 2.4) arrive at output 6. This excludes the participation of this line in the reduction of the working frequency band.

As a result, a device is created which, as a whole, uses its own reactive components in combination with additional reactive elements and an additional fourth conductor, and provides simultaneously transformation and balancing in the extended frequency band, as well as filtering outside the working frequency band.

Claims (1)

Invention Formula Transformer device auth. St. No. 1277226, characterized in that, in order to expand the frequency band, a reactive quadrupole is introduced into it, an additional fourth conductor is introduced into the second three-wire line, the beginning of which is connected to the first output terminal of the reactive quadrupole, the first input terminal of which is connected to the end of the second conductor, first three-wire line, and the second input and output terminals of the reactive quadripole are connected to the beginning of the second conductor of the second line, the end of the fourth conductor forms an asymmetrical output from relative to a common tire.