• A contactless dielectric constant sensing system based on a split-ring resonator-loaded monopole 

      Carnerero Cano, Javier; Galindo Romera, Gabriel; Martínez Martínez, José Juan; Herraiz Martínez, Francisco Javier (2018-06-01)
      In this paper, a low-cost contactless passive sensor is designed and manufactured. The structure consists of a short-circuited printed monopole antenna coupled to two split-ring resonators. The permittivity of the materials ...
    • A contactless RFID system based on chipless MIW tags 

      Martínez Martínez, José Juan; Herraiz Martínez, Francisco Javier; Galindo Romera, Gabriel (2018-10-01)
      In this paper, a contactless RFID system formed by chipless tags based on the magneto-inductive wave (MIW) delay lines is proposed. In order to carry out the reading process, two reader probes have been designed, manufactured, ...
    • A contactless system for the dielectric characterization of liquid drop 

      Galindo Romera, Gabriel; Carnerero Cano, Javier; Martínez Martínez, José Juan; Rivera Lavado, Alejandro; Herraiz Martínez, Francisco Javier (2020-08-31)
      The present article shows the design, implementation, and measurement of a compact contactless electronic system for sensing small volumes of liquids. The system is based on two elements: an electronic reader and a passive ...