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This paper presents, for the first time, a 24-GHz Continuous Wave (CW) radar front-end, entirely realized on a cellulose-based (i.e. paper) substrate. The front-end uses a microstrip circuitry that is fabricated using a copper adhesive laminate to have low conductor losses. A single dielectric layer is adopted to reduce complexity and, in perspective, costs. The radar exploits an external oscillator...
A 24 GHz single-balanced diode mixer in paper substrate is presented. The microstrip 180 degrees hybrid junction (rat-race) is fabricated exploiting a copper adhesive tape that is shaped by a photo-lithographic process and transferred to the hosting (paper) substrate using a sacrificial layer. Only three discrete devices are necessary for the mixer operation, namely: two low-barrier, Schottky diodes...
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