SU1356190A1 - Frequency converter - Google Patents

Abstract

The invention relates to a microwave technique and reduces the weight and dimensions of the AUST-VA. When applying constant displacement voltage through a common e-mail. pin 7 of the communication on the diode is the addition of frequencies of the information. and the heterodyne signal and the signal is passed through the 3rd section 3 of a rectangular waveguide (OPV). Localization of the heterodyne power on the diode is carried out by moving the short-circuits in OPV 2 and 3 (or the matched load in OPV 2 instead of short-circuits) and selecting the distance from the diode to the bandpass filter in OPV 2. This distance can be widely used change the value of the coupling of the resonator with the information path. signal, i.e. the magnitude of the microwave oscillations information. frequencies. 2 Il. / 1 s (L has eaten about: with

Description

The invention relates to a microwave technique and can be used in various types of radio equipment.

The purpose of the invention is to reduce the weight and size.

Fig, 1 shows a frequency converter; figure 2 - section aa in figure 1.

The frequency converter contains an orthogonal connection 1 of the first 2 and second 3 segments of the rectangular waveguide, which are beyond the frequency of the information signal, but standard for the frequency of the heterodyne signal, in the center of which is placed a rectangular dielectric, insert 4, the third segment 5 of the rectangular waveguide, the wide walls of which are made common with one of the wide walls of the first segment 2. In the first 2, second 3 and third 5 segments, bandpass filters (not shown) and short lengths of the short circuit 6 are installed (in the first instead of the short circuit 6, it can be installed with the ability to move a matched load). The first 2, second 3 and third 5 segments are respectively the paths of the information signal, the local oscillator signal and the converted signal. An orthogonal connection 1 with a rectangular insert 4 is a resonator resonating at the frequency of the information signal and the frequency of the local oscillator signal, which is due to the choice of the dielectric constant g of the rectangular dielectric contribution 4 from the relations

one

a (r, th Γ, - -)

 4 (i) r (-V

 ;

. „2

 1 to ;

to

W

21

  T

where D is the wavelength of the information signal in free space;

and - the transverse size of the first 2 and second 3 segments.

In the center of the rectangular dielectric plug 4 perpendicular to the wide walls of the first 2, second 3 and third 5 segments, a common electrical communication pin 7 is installed, connected to diode 8, as

ten

15

20

25

56190

Secondly, it can be a varactor diode or LPD.

The Converter operates as follows.

Claims (2)

When a constant bias voltage is applied through the common electrically coupling pin 7 on diode 8, the frequencies of the information and heterodyne signals are added together and the converted signal is passed through the third section 5. The local oscillator power is localized on the diode 8 by moving the short connectors 6 in the first 2 and the second 3 segments (or the matched load in the first segment 2 instead of the short circuit 6) and the choice of the distance from the diode 8 to the - bandpass filter in the first segment 2. At the same time, the distance from the diode 8 to the bandpass filter in the first segment 2 varies. It is possible to vary within wide limits the magnitude of the coupling of the resonator with the information signal path, i.e. the attenuation value of the microwave oscillations of the information frequency. Invention Formula A frequency converter containing an orthogonal connection of the first and second segments of a rectangular waveguide, each of which includes a band-pass filter and a short-circuit and the first of which is an information signal path, and the second is a heterodyne signal path, the third segment of a rectangular waveguide, which includes a band pass the filter and the short circuiter, is the path of the converted signal and one of the wide walls of which is made common to one of the wide walls of the first segment of the rectangular wave a, and a common electrical communication pin mounted perpendicular to the wide walls of the first, second, and third segments of a rectangular waveguide and connected to the diode, while the third segment of a rectangular waveguide is made beyond the frequency of the information signal Horq, which is equivalent to that, in order to reduce mass and dimensions, a rectangular dielectric liner is inserted into it, which is installed in an orthogonal connection; first and second gaps of a rectangular waveguide, the transverse dimensions of which are chosen from thirty 35 40 45 IN 55 31356190 the limiting conditions for the oscillation of the frequency of the information signal, and the dielectric constant of the rectangular dielectric liner is chosen from the relations a (r, thr, f.j,) 4 (i) -.1--; G, s (-) gd r, -j (f), {f to 2 to where is the wavelength of information signal in free space. FIG. 7