RESONANT MICROWAVE COMPRESSOR WITH SYMMETRICAL RESONATOR Russian patent published in 2012 - IPC H01P7/06 

FIELD: physics, radio.

SUBSTANCE: resonant microwave compressor can be used to generate powerful microwave pulses with nanosecond duration. The resonant microwave compressor has a symmetrical resonator (1) made from a waveguide with two shorted arms, a microwave switch and energy input (3) and output elements based on waveguide tees. The input (3) element is made on the side of the lateral arm of the H tee (4), lying at the centre of the cylindrical resonator with length L=(4n+1)λ_w/2, where n>1 and λ_w is the wavelength in the resonator. The output element is in form of two output H tees (6) made from a circular waveguide with diameter D satisfying the condition λ/1.7<D<λ/1.03, where λ is the wavelength in free space, lying in the same plane as the H tee (4) of the input (3) element and connected symmetrically in the shorted arms of the resonator (1), at a distance L₁=nλ_w/2 from the corresponding short-circuiter (2). A summation H tee (5) is connected to the lateral arms of the output H tees (6) symmetrically by straight arms. The resonator (1) has four sections of a circular waveguide of length L₁-λ_w each and diameter D₁ which satisfies the condition D<D₁<λ/0.82. The sections are connected in series with the straight arms of the output H tees (6) through tapered waveguide transitions (9) from diameter D₁ to diameter D, one on each section. A half-wave switching section with diameter D₁ with a microwave switch (8) is placed at the centre of the resonator (1). Waveguide transitions (9) from diameter D₁ to diameter D have length L₂ approximately equal to 0.5Λ, where Λ is the wavelength in the waveguide of diameter D at the lower frequency of the bandwidth of the transition which is equal to the 1/t, where t is the round-trip propagation time of the operating wave along the section of the resonator (1) with length L₁=nλ_w/2.

EFFECT: high power of output signals of the compressor owing to shorter time for outputting energy and a larger cross-section of the accumulative resonator.

2 cl, 1 dwg