Frequency multiplier

• US 6,998,941 B2
• Filed: 03/26/2002
• Issued: 02/14/2006
• Est. Priority Date: 05/10/2001
• Status: Expired due to Fees

• Current Assignee: Daniil Olegovich Korneev, Sergey Borisovich Maltsev
• Original Assignee: Daniil Olegovich Korneev, Sergey Borisovich Maltsev
• Inventors: Maltsev, Sergey Borisovich, Korneev, Daniil Olegovich
• Primary Examiner(s): Jones, Stephen E.
• Application Number:
  US10/473,280
• Publication Number:
  US 20050099248A1
• Time in Patent Office: 1,421 Days
• Field of Search: 333/218, 333/250, 327/123, 327/119, 327/116
• US Class Current: 333/218
• CPC Class Codes: H03B 19/18 and elements comprising distributed inductance and capacitance
• CPC Class Codes: H03B 2201/01 Varying the frequency of the oscillations by manual means

Abstract

The invention can be used for telecommunications, measuring and other devices in order to produce stable superhigh frequency signals. An IMPATT diode (4) operating in the cascade break-down mode and having a sharp nonlinearity transforms an input signal in such a way that ultraharmonics which multiple in respect to the frequency of an input signal ω₀ occur in a frequency spectrum. An output stage of a multiplier is used in order to separate an output nω₀ frequency and to suppress adjacent frequencies. In order to tune the output stage to the nω₀ frequency, a tuning plug (8) and short-circuiting pistons (13) are used. The tuning plug (8) is arranged above an upper electrod of the IMPATT diode (4) (inside the axis of the diode). The tuning plugs (13) make it possible to tune resonance capacitance to the nω₀ frequency and remove energy towards the output part of a T-bend in which a wave guide pass-band filter (15) is disposed. Said filter (15) is embodied in the form of sections of a waveguide (14) on whose E-plane a thin metallic diaphragm is arranged, said diaphragm being provided with windows (16) disposed along the axis of the waveguide. The inventive multiplier ensures high converting efficiency.

Claims

1. A frequency multiplier including an input circuit, embodied as a coaxial connector to input a signal to be multiplied, a means of supplying a signal to be multiplied to IMPATT diode mounted in a retainer, a means of supplying the diode with dc bias voltage and output waveguide frame, distinguished by the fact that the means of inputting a signal to be multiplied is embodied as a microstrip line formed on a polycore wafer and connected to a gold-plated strip which is connected by welding to the diode, the means of supplying the diode with dc bias voltage embodied as a quarter-wave filter formed by the microstrip inductance and capacitance, the output waveguide circuit is embodied as a waveguide T-bend with an IMPATT diode arranged at the centre, two short-circuiting pistons fitted in two opposite arms and a pass-band filter disposed in the third arm.

2. The frequency multiplier of claim 1, distinguished by the fact that it is provided with a clamp which enables adjusting the diode'"'"'s position in the retainer by means of a screw.

3. The frequency multiplier of claim 1, distinguished by the fact that it is provided with a tuning plug which is fixed in respect to the diode by means of a split terminal consisting of a collet and a screw, the position of the tuning plug above the diode is regulated with the screw.

4. The frequency multiplier of claim 1, 2, or 3, distinguished by the fact that it is provided with clamps to fix the position of two short-circuiting pistons fitted at two opposite ends of the T-bend.

5. The frequency multiplier of claim 1, 2, or 3, distinguished by the fact that the waveguide pass-band filter is embodied as two equal waveguide'"'"'s sections with a metal diaphragm nipped between them, and also is provided with windows disposed along the axis of the waveguide which is formed by the said sections.