The frequency multiplier

 

(57) Abstract:

The invention relates to techniques for ultra-high frequencies. The frequency multiplier includes cascade-connected input and output microstrip filters and varactor diodes,connected in parallel to them. The output resonator of the input filter is simultaneously input resonator output filter, one or both halves of his strip conductor shorted to the ground through varactor diodes. The first resonant frequency of the output resonator of the input filter is equal to the frequency of the input power, the second resonant frequency equal to the frequency of the output power. The first resonance frequency of the input resonator input filter is equal to the frequency of the input power, the third resonant frequency is higher than the frequency of the output power and the input power fed into it at the point of the node voltage at the frequency of the second resonance. The second resonant frequency of the output resonator of the output of the filter is equal to the frequency of the output power and the output power is removed from the resonator at the point of the node voltage at the frequency of the input power. The first resonant frequency of the output resonator of the output of the filter is equal to the frequency of the output power. 3 C.p. f-crystals, 1 Il.

The invention will Otoscope to a vector diode in coaxial input line, which through the side wall protrudes into the output waveguide. Currents triple frequency generated by the diode, excite propagating field in the waveguide, one end of which is used as output. At the other end of the waveguide has a movable short-circuited piston for fine adjustment of output. Thus the cutoff frequency of the waveguide above the fundamental frequency and the frequency of the second harmonic. Therefore, the waveguide is a high-pass filter. The coaxial line is the radial trap. The trap forms a gap in the line at three times the frequency, thereby preventing the ingress of three times the frequency at the input. The position of the trap relative to the diode is chosen to adjust reactance diode on the output frequency. Capacity arachinovo diode and inductance are selected such that the diode is configured in serial resonance at the second harmonic, closing the current no-load frequency. The disadvantage of the accelerator frequency [1] is its bulkiness and complexity of the design.

The closest analogue is useverything frequency [2], containing warstory diode, circuit auto shift input microstrip low pass filter and the output micropolish the CLASS="ptx2">

The invention is directed to reducing the number of elements of frequency multiplier due to their more efficient use. The technical result of the invention is the reduction of the frequency multiplier.

The proposed frequency multiplier includes cascade-connected input and output microstrip filters and varactor diodes, connected in parallel to them.

The proposed frequency multiplier differs from the closest analogue to the fact that the output resonator of the input filter is simultaneously input resonator output filter, one or both halves of his strip conductor shorted to the ground through varactor diodes. The first resonant frequency of the output resonator of the input filter is equal to the frequency of the input power, and the second resonant frequency is equal to the output power.

In addition, the first resonance frequency of the input resonator input filter is equal to the frequency of the input power, the third resonant frequency is above the frequency of the output power and the input power fed into it at the point of the node voltage at the frequency of the second resonance. The first resonant frequency of the output resonator of the output of the filter is equal to the frequency of the output power, or the ora at the point of the node voltage at the frequency of the input power.

All these distinctive features aimed at obtaining a technical result.

The drawing shows a diagram of the frequency multiplier, implemented at three microstrip resonators.

The frequency multiplier includes cascade-connected input and output microstrip filters and varactor diodes 1, which are parallel to them. The output resonator 2 input filter is simultaneously input resonator output filter. Both halves of his strip conductor shorted to the ground through varactor diodes 1. The first resonant frequency of the output resonator 2 is equal to the frequency of the input power, and the second resonant frequency equal to the frequency of the output.

In addition, the first resonance frequency of the input cavity 3 of the input filter is equal to the frequency of the input power, the third resonant frequency is above the frequency of the output power and the input power fed into it at the point of the node voltage at the frequency of the second resonance.

The second resonant frequency of the output resonator 4 output filter is equal to the frequency of the output power, and output power is removed from the resonator at the point of the node voltage at the frequency of the input power, or the first p is ogical frequency depending on the bandwidth of the input and output power can contain input and output capacity of the links 5 and 6. In addition, depending on the type arachinovo diode multiplier can have a chain of auto-offset.

The equality of the first resonant frequency of the resonator 3 the frequency of the input power, which is the resonant frequency of the frequency output power is achieved by reducing the width of the Central part of the strip conductor [3].

The frequency multiplier operates as follows.

Input power passing through the filter, enters its output resonator 2, which is loaded on warstory diode 1. Warstory diode 1, as a non-linear element, to generate microwave oscillations at frequencies that are multiples of the frequency of the input power. The resonator 2 from all the vibrations of multiple frequencies selects only those vibrations, frequencies which coincide with its resonant frequency. These two frequencies: the frequency of the input power and frequency output power. Fluctuations in other multiple frequencies are suppressed by the resonator 2. Output power passes through the output filter and enters the frequency converters.

Suppression of leakage of this power through an output filter is enhanced by the presence of the node voltage at the input of the input resonator 3. The suppression of the input power at the output of the multiplier increasing the ora 4 lower frequency output power.

Conductive connection at the resonator microstrip filter to the transmission line at the point of the node voltage is equivalent to introduction to microwave tract additional registerimage quarter-wave loop.

Sources of information:

1. Microwave semiconductor devices and their application. Ed. by G. Watson. - M.: Mir, 1972, S. 279.

The design of the transmitting devices, microwave. Ed. by G. M. Utkin. - M.: Owls. radio, 1979, S. 121.

1. The frequency multiplier containing cascade connected input and output microstrip filters, in which the output resonator of the input filter is simultaneously input resonator output filter, to one or both of its ends connected varactor diodes, shorted to earth, his first resonant frequency equal to the frequency of the input power, wherein the second resonant frequency of the output resonator of the input filter is equal to the frequency of the output.

2. The multiplier under item 1, characterized in that the first resonance frequency of the input resonator input filter is equal to the frequency of the input power, the third resonant frequency is higher than the frequency of the output power and the input of the multiplier is the point of the node voltage at the frequency of the resonator output filter is equal to the frequency of the output power, and the output power is removed from the resonator at the point of the node voltage at the frequency of the input power.

4. The multiplier under item 1, characterized in that the first resonant frequency of the output resonator of the output of the filter is equal to the frequency of the output power.

 

Same patents:

FIELD: radio engineering; computerized measuring systems.

SUBSTANCE: proposed method involves conversion of linear signal into nonlinear one by parametric addition of linear signal with pumping signal and using them to act upon nonlinear formation created on the way of linear signal propagation in the form of man-made ionized formation or magnetic base plasma formation, parameters of linear and pumping signals being variable; linear signal and/or pumping signal is controlled by nonlinearity parameters of nonlinear formation in compliance with given analytical equation describing type of nonlinearity of nonlinear signals being generated; linear signal is, essentially sine-wave or pulsed signal.

EFFECT: ability of generating nonlinear signals with desired type of nonlinearity.

4 cl, 1 dwg

FIELD: radio engineering and measurement technology.

SUBSTANCE: proposed harmonic frequency multiplier that can be used as wave supply in radio transmitters and radio receivers has harmonic input signal supply, input and output matching circuits, two varactors, four resistors, four capacitors, and two-pole bias voltage supply.

EFFECT: enlarged operating band, reduced stray harmonic level.

1 cl, 1 dwg

Up!