Synthesis of ultrawideband radiation of combined antenna arrays excited by nanosecond bipolar voltage pulses

5th International Congress on Energy Fluxes and Radiation Effects 2016

Koshelev, V.I.^1 ; Plisko, V.V.^1 ; Sevostyanov, E.A.^1

Institute of High Current Electronics SB RAS, Tomsk, Russia^1

关键词: Array structures;    Bipolar voltage pulse;    Different geometry;    Pattern formation;    Radiation pulse;    Radiation spectra;    Spectrum width;    Ultra wide band radiations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012012/pdf
DOI  :  10.1088/1742-6596/830/1/012012

来源: IOP

【 摘 要 】

To broaden the spectrum of high-power ultrawideband radiation, it is suggested to synthesize an electromagnetic pulse summing the pulses of different length in free space. On the example of model pulses corresponding to radiation of combined antennas excited by bipolar voltage pulses of the length of 2 and 3 ns, the possibility of twofold broadening of the radiation spectrum was demonstrated. Radiation pulses with the spectrum width exceeding three octaves were obtained. Pattern formation by the arrays of different geometry excited by the pulses having different time shifts was considered. Optimum array structure with the pattern maximum in the main direction was demonstrated on the example of a 2×2 array.