SU1467615A1 - Microwave separator of magnetostatic-wave channels - Google Patents

Abstract

This invention relates to a microwave technique. The purpose of the invention is to reduce the size, increase the isolation between the channels and expand the range of operating frequencies in the shortwave part of the microwave range. The separator contains dielectric substrates 1 and 2, converters 3, 4 and 5, a ferrite film 6 and a magnetic system 7. When applying a microwave signal to the converter 3, the ferrite film 6 is excited, depending on its carrier frequency, either direct surface or reverse bulk magnetostatic waves (MSS). With two microwave signals with corresponding excitation frequencies (the OT simultaneously, and other VSSs. At the same time, the forward MSS propagates along the direction of the longitudinal axis of the converter 3 and, in the converter 4, the reverse process converts their power to the power of the electromagnetic wave. Along the field Nd of the magnetic system 7 and excite electromagnetic waves in the transducer 5, but already in a different frequency range. As a result, the frequency separation of the microwave oscillations occurs. 2 ill.

Description

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The invention relates to a microwave technique and can be used in signal processing devices for the frequency division of microwave oscillations.

The aim of the invention is to reduce the size, increase the isolation between the channels and extend the range of operating frequencies to the shortwave part of the microwave range.

FIG. 1 is a SBCh-separator of channels on magnetostatic waves (MSS); figure 2 - section aa on fig1.

The microwave separator of channels on the MCB contains 1 and second 2 dielectric substrates, input 3, first 4 and second 5 output transducers, ferrite film 6 and magnetic system 1,

The microwave separator channels on the MRV works as follows.

When a microwave signal is applied to the input converter 3 in a ferrite film 6, depending on its carrier frequency, either direct surface or reverse volume MWs are excited, and with two microwave signals with corresponding frequencies, both surface SMEs propagate in the direction perpendicular to the field direction Nd of the magnetic system 7, t, e, along the direction of the longitudinal axis of the input transducer 3s and in the first output transducer 4 there is a reverse process of transforming them ti in power of the electromagnetic wave. Inverse MCBs propagate along the Hp field and. electromagnetic waves are excited in the second output transducer 5, but already in a different frequency range. As a result, a frequency separation of the microwave oscillations occurs,

- A feature of such MRVs is that the lower frequency limit of the existence of the direct surface and the upper frequency limit for inverse volumetric SMEs coincide and depends both on the magnetizing field and on the saturation magnetization of the ferrite film. At the same time, the lower frequency the boundary for the inverse bulk and the upper frequency boundary for the forward surface MRV is different and is determined by the ratio of the width of the transmission line to the thickness of the ferri

- 0

5 Q Q j

2 film. The change in this ratio is controlled by the width of the channel operating frequencies.

If not one ferrite film 6, but several with different magnetizations are used as the waveguiding element, then, with the same magnetizing field

0 receive a multichannel microwave separator on the MRV. The same separator can be obtained even with the same magnetisation x saturation of ferrite films 6, if they are magnetized

5 gradient in direction, perpendicular to their plane, magnetic field, claims

A microwave separator of magnetostatic wave channels, containing a first dielectric substrate, an input and a first output transducer located on one of its surfaces, a second output transducer and at least one tangential ferrite film, characterized in that, in order to reduce dimensions, increasing the separation between the channels and expanding the range of operating frequencies in the shortwave part of the microwave range, a second dielectric substrate is introduced, on which the second output the transmitter, the input, the first and the second output converters are made in the form of short-circuited slot-hole transmission line segments, the ferrite film is located between the first and second dielectric substrates installed in parallel in a plane perpendicular to them passing through the longitudinal axes of the second output, input and first output converters facing one another, with distances of 1 and 12. between the input and the first, the input and the second output converters, respectively, are selected from the ratios

I, -,; ," /four;

0,1, li 1,,

where L o is the wavelength at the center frequency of the working range of the slit transmission line, and the direction of magnetization of the ferrite film is perpendicular to the first and second dielectric substrates.

Fie.2

Claims (1)

claims a microwave separator of channels on magnetostatic waves, comprising a first dielectric substrate, an input and a first output converter located on one of its surfaces, a second output converter and at least one tangent magnetized ferrite film, characterized in that, in order to reduce the size , increasing the isolation between the channels and expanding the operating frequency range in the short-wave part of the microwave range, a second dielectric substrate is introduced, on which the second the output converter, the input, first and second output converters are made in the form of segments of a short-circuited slotted transmission line, the ferrite film is located between the parallel first and second dielectric substrates in a plane perpendicular to them, passing through the longitudinal axes of the second output, input and first output converters facing to one another, wherein the distance 1 _(u ^ 1 between the input and the first input and second output transducers, respectively, are selected from a relations ί, * Ά _ο; Άο / 4; ο, ιι, and ί ,, where Ά о is the wavelength at the central frequency of the working range of the slit transmission line, and the magnetization direction of the ferrite film is perpendicular to the first and second dielectric substrates. FIG. 2