SU1497657A1 - High-speed switch - Google Patents

Abstract

The invention relates to microwave radio technology and can be used in devices for switching frequency bands of signals. The purpose of the invention is to provide switching of the upper and lower frequency bands while reducing losses. The switch contains a segment of a rectangular waveguide with waveguide loops mounted on its wide wall with a quarter-wavelength average operating wavelength range, each of which contains an electrically-controlled switching element, is short-circuited at one end and connected at the other end to a segment of the rectangular waveguide through a connection gap 7, perpendicular to its narrow wall 8. To achieve the goal, the communication slot 7 includes two sections in which the edges of which touch the opposite sides of the protrusions 11 are element 4. Electric The length of the first segment is equal to half the average wavelength of the upper frequency band, and the second segment is chosen not more than a quarter of the average wavelength of the lower frequency band. The lengths of the loops are 0.43 - 0.47 of the average wavelength of the upper frequency band. 2 Il.

Description

one

(21) 4235565 / 24-09

(22) 04.24.87

(46) 07/30/89. Bul M 28

(72) V.M.Antonenko, I.3.Berl Vsky,

V.N. Krutikov and V.I. Chubis

(53) 621.372.837 (088.8)

(56) USSR author's certificate

No. 386681, CP. H 01 R 1/10, 05.10.70.

US patent number 3546633, CP. H 03 H 7/10, 08.12.70.

(54) QUICKLY SWITCH

(57) The invention relates to SECh and m. Radio engineering. Used in devices for switching frequency bands of signals. The purpose of the invention is to provide switching of the upper and lower frequency bands while reducing losses. The switch contains a segment of a rectangular waveguide mounted on its wide wall with

quarter length spacing. wavelength-working-wavebands, each of which contains an electrically-controlled switching element, short-circuited at one end and connected to the other end of a rectangular waveguide section through a communication slot 7, perpendicular to its narrow wall 8. To achieve the target, the slit cz Figure 7 includes two sections, where element 4 is mounted on the colliding protrusions II at the point of contact. The electrical length of the first section is equal to half the average length of the upper frequency band, and the second section is not large e quarter of the average wavelength of the lower frequency band. The length of H1) 1 stubs is 0.43 - 0.47 average d: n1n the upper frequency band waves. 2 Il.

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The invention of the optical board for microwave technology and can be used in devices for switching frequency bands of spgnals.

The purpose of the invention is to provide switching of the upper and lower frequency bands while reducing losses.

FIG. 1 shows a high-speed switch; in fig. 2 shows section A-A in FIG. one.

The switch contains a segment 1 of a rectangular waveguide with waveguide loops 3 installed on its wide wall 2 with a quarter-wavelength spacing of the working wavelength range, each of which contains electrically controlled switching g 4, short-circuited ends 5 and connected ends 6c of segment 1 rectangular conduit through the communication gap 7, perpendicular to its narrow wall 8. The communication gap 7 includes the first and second sections. The first section is made in the form of a rectangular hole 9 with a length equal to half the average wavelength of the upper frequency band, and the second section can have an arbitrary shape, for example, in the form of a round hole 10 with a diameter of not more than a quarter of the average wavelength of the lower frequency band. and the second sections on opposing protrusions I 1, an electrically controlled switching element 4 is installed, the lengths of loops 3 being 0.43-0.47 of the average wavelength of the upper frequency band.

High-speed switch works as follows. The signals of the upper and lower frequency bands come in section 1.

When a constant voltage is applied by the electrically controlled 1.1e, the switching elements 4 are unlocked and short-circuited counter-lugs 11. The upper frequency band signals through the rectangular apertures 9 pass almost without reflection and attenuation, and through the circular apertures 10 the communication is small. Ka) a solid loop 3 with a part of segment 1 adjoining it is a tee in the E plane, at which the asymmetrical shoulder is shorted at a distance of 0.43–0.47 of average length are full of the upper frequency band; through such a tee the input signal nepxneii fTdJuirbi frequency passes P (honor

without loss. In the lower frequency band, rectangular apertures 9 have inductive conductivity and therefore the equivalent lengths of loops 3 with respect to inductive conductivity in a rectangular aperture 9 are equal to a quarter of the lower frequency band wave, and the input signal is reflected to the input, not the output to the output in this band.

When the constant voltage () is removed (), the electro-directing switching element 4 in each loop 3 is locked and behaves in the first approximation as the gap between the opposing protrusions 11. The equivalent electrical lengths of the communication slots 7 are equal to 0.75 of the average wavelength of the lower band frequency, the input signal is reflected from the target 7 of the communication and passes completely to the output of the switch.

The choice of the shape of the Second section of the communication slot 7 ensures the equality of the equivalent electrical lengths of loops of 3 quarters of the average wavelength of the upper frequency band and the input signal is reflected to the input, not the passage to the output.

Claims (1)

Invention Formula A high-speed switch containing a segment of a rectangular waveguide, perpendicular to the wide wall of which is connected by one ends through the slots of the loops, the other ends of which are short-circuited, while the distance between the loops is equal to a quarter of the average wavelength of the working range and each loop is equipped with an electrically controlled switching element tl, which is due to the fact that, in order to ensure the switching of the upper and lower frequency bands with decreasing losses, each gap includes the first and second sections, in the place of connection The number of which includes the electrically controlled switching element, the electrical lengths of the first sections are equal to half the average wavelength of the upper frequency band, and the electrical lengths of the second sections are selected no more than a quarter of the average wavelength of the lower frequency band, and the lengths of the loops are chosen to be 0.43-0.47 average wavelength of the upper frequency band. Fi9.1