SU1631694A1 - Oscillator - Google Patents

Abstract

The invention relates to radio engineering. The purpose of the invention is the extension of the frequency tuning range. Frequency tuning performed by changing the position of the short-circuiting piston 3 is accompanied by a simultaneous change in the magnitude of the switching factor of the generator diodes 6 into the resonator formed by segment 1. Those generator diodes 6 have the maximum value of the switch factor that are located at the optimum distance from the windows for the set frequency 5, which leads to the expansion of the frequency tuning range 2 Il.

Description

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The invention relates to radio engineering and can be used in radio transmitting and receiving devices.

The purpose of the invention is the extension of the frequency tuning range.

FIG. Figures 1 and 2 show the construction of the generator, a top view and a bottom view, respectively.

The generator contains a waveguide section 1, at the first end of which a coupling element 2 of the generator with a load is made, and the second has a shorting piston 3, N pairs of 4 coaxial lines, each of which is located in a corresponding cross sectional plane of section 1, can be moved, with In this way, the segments 4 are electromagnetically connected to the segment 1 through the corresponding communication windows 5, the centers of which are located in the plane passing through its longitudinal axis, to one end of each segment 4 a generator diode is connected 6, and on the other is placed a matched load 7 with a power filter 8. The distance I) between the first end of the segment 1 and the plane in which the corresponding pair of segments 4 is located, and the distance I0i between the generator diode and the center of the window 5 of the segment A of the corresponding pair are selected from the relations

 /four;

.051m

 / 4, 1 1N,

where I is the number of a pair of segments 4,

AO is the wavelength of the 4-pair segment with the number corresponding to the wave length in the 1 Jy 4li segment.

The generator works as follows.

When the supply voltage is applied in the generator, oscillations are excited, the frequency of which is determined by the distance between the first end of segment 1 and the short-circuiting piston 3. Moving the short-closing piston 3 causes frequency tuning and a simultaneous change in the switching ratio of the generator diodes 6 to the resonator formed by the segment 1. With selected construction dimensions, maximum coefficient

the inclusions are those generator diodes b, which are located at the optimum distance from the center of the windows 5 for a given frequency, which extends the frequency tuning range.

Claims (1)

Claim the second is placed with the possibility of moving a short-circuiting piston, N pairs of segments of coaxial lines, each of which is located in the corresponding cross-sectional plane of the segment waveguide, while the segments of coaxial lines are electromagnetically connected to the waveguide section through the corresponding communication windows, whose centers are located in a plane passing through its longitudinal axis, A generator diode is connected to one end of each section of the coaxial line, and at the other end there is a matched load with a power filter, characterized in that, in order to expand the frequency tuning range, the distance li between the first end of the waveguide segment and the plane in which the corresponding pair of coaxial line segments is located, and the distance 10 | between the generator diode and the center of the communication window of the segment of the coaxial line of the corresponding pair are selected from the ratios And Ay / 4; .051m 0loi-Aoi / 4. MN, where I is the number of a pair of segments of coaxial lines; Aoi is the wavelength of the segment of the coaxial line of the pair with the number I, which is equivalent to the wavelength in the region of the waveguide Ay 4li. J 4 T 1