title: Printed log-periodic feeds for radar applications
abstract: Radar systems are well known since the end of world war II and are widespread.&#13;\nThe basic concept of radar is relatively simple: the system uses the propagation characteristics of electromagnetic waves and works by radiating electromagnetic energy in the space and detecting the echo reflected by the objects (named “target”). The information related to the target is available in the echo signal: the range, or distance, to the target is found from the time it takes for the radiated&#13;\nener
journal: VEprints - Universita degli Studi di Cagliari