TY JOUR TI Design of ultra-wideband long-term RF-signal delay devices KW ultra-wideband long-term delay of radio frequency signals KW fiber-optic delay circuit JO Infocommunications and Radio Technologies AU Belkin, M.E. AU Klyushnik, D.A. AU Toporkov, N.V. PY 2018 IS 1 PB Federal State Educational Institution of Higher Education Sevastopol State University