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THE SET OF FREQUENCY MULTIPLER

doubler

Technical parameters:
Supply V/Hz 220  +  22/50  +  0,5
Consumed power, no more than , Watt, 2
Frequency range, GHz 106-156
Output power , no less, microWatt 5
Gain flatness within operating band at input power level 3-5 mW, dB, not more than GHz 8
F cutoff for the waveguide detector and the waveguide of multiplier output, GHz 88
Radius of curvature for spherical mirror R, mm 250
Dimensions , mm 310x220x140
Weight, no more,kg 5,5
The Set of Frequency Multiplier is used in complex with Panoramic SWR and attenuation meter - P2-69 is intended for medical-and -biology research. The Set comprises a source of microwave (electromagnetic) signal, operating at quadratic or third harmonic of Panorama sweep-oscillator, quasi-optics system for adjustment and canalization of harmonic to the object stage, besides, it is possible to indicate the radiation level transmitted through the object stage at Panorama display.
Frequency doubler comprises a waveguide construction with input waveguide section ainībin = 3,8mm x1,9mm and output waveguide section aoutībout = 1,7mm x 0,85mm loaded to diagonal output horn connected to the output flange of doubler waveguide. Cutoff frequency of output waveguide fcut ~ c/2aout = 88GHz (where c - velocity of light in vacuum). Frequency doubler is positioned in fasten so, that E component of electromagnetic field when irradiated by horn is parallel to the plane of the object plate. OOutput power P within frequency band 104-158 GHz was tested by calibrated detector head and appeared to exceed 5mW on the input power rate Pin ~ 3-5mW. Gain flatness within operating band is not less than 8dB. Gain flatness is strongly depended on adjustment upon quasi-optic line between transmitting and receiving horns.
Detector head for the doubler channel comprises a waveguide construction with input waveguide by section ainībin = 1,7mm x 0,4mm, which is loaded to diagonal input horn made in the body of detector. Cutoff frequency of the input waveguide fcut~ c/2a is 88GHz. Detector head is positioned in mounting fixing so, that electric component E of the electromagnetic field, which is received by horn, is to be parallel to the plane of the object-plate.
Radius of curvature for Spherical mirror R is about 250 mm, it is used for canalization of the reflected signal (from the object plate) to the receiving horn of the detector's camera. Besides, spherical mirror increases the power density of radiation in the plane of the object plate. It is possible due to the return of the signal power, which passed through radiated bio object.


ELM Ltd. 603107 Russia, Nizhni Novgorod, Larina 7,tel:+7 8312-759-731,  elmnn@rol.ru