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In this paper, a novel fully inkjet-printed via fabrication technology and various inkjet-printed substrate-integrated waveguide (SIW) structures on thick polymer substrates are presented. The electrical properties of polymethyl methacrylate (PMMA) are thoroughly studied up to 8 GHz utilizing the T-resonator method, and inkjet-printable silver nanoparticle ink on PMMA is characterized. A long via...
Flexible inkjet-printed sensor platforms fabricated on flexible substrates are demonstrated to be a sustainable economical solution for 2D “Zero-Power” sensing and active energy harvesting applications as well as multilayer 3D structures and complete radar systems. Several designs featuring the advantages, challenges and prospects of inkjet printing technology are presented. These designs demonstrate...
Typical UWB FMCW Ground Penetrating (GPR) Radars operate at low frequencies that require a wide sweep bandwidth thus necessitating complex architectures and bulky broad-band antennas. This poses unique challenges to the system portability especially for manual, wide-area outdoor measurements. In this paper, we present the first design, fabrication and characterization of a complete conformal and miniaturized...
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