Dual-band phased array antenna system with electronic beam steering

摘要

u0434u0432u0443u0445u0434u0438u0430u043fu0430u0437u043eu043du043du0430u00a0 u0430u043du0442u0435u043du043du0430u00a0 system with electronically controlled beam, u0432u043au043bu044eu0447u0430u044eu0449u0430u00a0 u0444u0430u0437u0438u0440u043eu0432u0430u043du043du0443u044e u0430u043du0442u0435u043du043du0443u044e bars high-frequency range, linear u0432u043eu043bu043du043eu0432u043eu0434u043du044bu0435 of u043bu0443u0447u0430u0442u0435u043bu0438 which form the u0440u0435u0433u0443u043bu00a0u0440u043du0443u044e periodic structure, and u0444u0430u0437u0438u0440u043eu0432u0430u043du043du0443u044e u0430u043du0442u0435u043du043du0443u044e bars low-frequency range, linear u0432u043eu043bu043du043eu0432u043eu0434u043du044bu0435 emitters kotor oh form u0440u0435u0433u0443u043bu00a0u0440u043du0443u044e periodic structurethe high-frequency and low-frequency ranges of linear u0432u043eu043bu043du043eu0432u043eu0434u043du044bu0435 emitters to produce a single u0430u043fu0435u0440u0442u0443u0440u0443 antenna system, and points u0438u0437u043bu0443u0447u0435u043du0438u00a0 both base of antenna bars coincide, u043eu0442u043bu0438u0447u0430u044eu0449u0430u00a0u0441u00a0, linear u0432u043eu043bu043du043eu0432u043eu0434u043du044bu0435 emitters are located between the u0434u0432u0443u043cu00a0 line u0432u043eu043bu043du043eu0432u043e low-frequency range u0434u043du044bu043cu0438 u0438u0437u043bu0443u0447u0430u0442u0435u043bu00a0u043cu0438 high-frequency rangethe united states between a common broad sides u0432u043eu043bu043du043eu0432u043eu0434u043eu0432 and forming sections that are connected u043au043eu0440u043eu0442u043au043eu0437u0430u043cu043au043du0443u0442u044bu043cu0438 flat u0432u043eu043bu043du043eu0432u043eu0434u0430u043cu0438, depth at the same time times the number of quarters u043du0435u0447u0435u0442u043du043eu043cu0443 wavelengths of high-frequency and low-frequency ranges, with linear u0432u043eu043bu043du043eu0432u043eu0434u043du044bu0435 emitters u0432u044bu0441u043eu043au043eu0447u0430u0441u0442u043eu0442u043d wow range are located with a step equal to 0.9 - 095 wavelength high-frequency band and low-frequency band u0432u043eu043bu043du043eu0432u043eu0434u043du044bu0435 emitters located with a step equal to 1.8 - 1.9 wavelength high-frequency u0434u0438u0430u043fu0430 zone, in addition, the ratio of high and low frequency ranges as 3.6 - 4.0.