Four County Society of Model Engineers train display at TownMall of Westminster on Tuesday, Dec. 23. The modular train display, meant to depict scenes from a mid-1950’s summer in ...
Abstract: Design of an ultrawideband co-polarized linear retrodirective array (RDA) operating in the high-frequency (HF) band (2–30 MHz) and beyond is reported for the first time and validated using ...
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