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Plane circular antenna as array of Tapered Slot Antennas (TSA) with video-pulse signals excitation has been proposed. The characteristics of space-time domain form of the field, radiated by plane circular array have been calculated and analyzed. Experimental measurement was done, which results were matched with the results of simulation. The possibility of radiation pattern synthesis through steaming...
A model for calculation of wave form and peak power pattern of Van Atta's array of tapered slot antennas (TSA) which reradiates wideband video-pulse signal has been presented. An influence of mutual coupling of elements of Van Atta's array on pattern has been shown. An effect of different types of polarities of connecting wires on a wave form of reradiated signal has been investigated.
A time-domain characteristic of the field radiated by a circular TSA array has been investigated in paper. The possibility of patterns synthesis by excitation polarities of circular array element has been showed. The results of experimental measurements have coincided with the simulation results.
Research works on biological effects of ultrawideband pulsed radiation which were realized in the Kharkiv National University are summarized. Investigations were done on different biological objects: human cells, Artemia sp., Drosophila melanogaster. Biological effects of ultrawideband pulsed radiation were observed in a range from 10-6 to 10-2 W/cm2. Different experimental models revealed different...
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