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Sensors (Basel). 2019 Aug 20;19(16). pii: E3626. doi: 10.3390/s19163626.

Implementation of Radiating Elements for Radiofrequency Front-Ends by Screen-Printing Techniques for Internet of Things Applications.

Author information

1
Department of Electric, Electronic and Communication Engineering, Public University of Navarre, 31006 Pamplona, Spain.
2
Department of Signal theory and Communications, University of Vigo, 36310 Vigo, Spain.
3
Institute for Smart Cities, Public University of Navarre, 31006 Pamplona, Spain.
4
Lan Printech, Centro Tecnológico Miguel De Eguia, 31200 Estella, Spain.
5
Department of Electric, Electronic and Communication Engineering, Public University of Navarre, 31006 Pamplona, Spain. francisco.falcone@unavarra.es.
6
Institute for Smart Cities, Public University of Navarre, 31006 Pamplona, Spain. francisco.falcone@unavarra.es.

Abstract

The advent of the Internet of Things (IoT) has led to embedding wireless transceivers into a wide range of devices, in order to implement context-aware scenarios, in which a massive amount of transceivers is foreseen. In this framework, cost-effective electronic and Radio Frequency (RF) front-end integration is desirable, in order to enable straightforward inclusion of communication capabilities within objects and devices in general. In this work, flexible antenna prototypes, based on screen-printing techniques, with conductive inks on flexible low-cost plastic substrates is proposed. Different parameters such as substrate/ink characteristics are considered, as well as variations in fabrication process or substrate angular deflection in device performance. Simulation and measurement results are presented, as well as system validation results in a real test environment in wireless sensor network communications. The results show the feasibility of using screen-printing antenna elements on flexible low-cost substrates, which can be embedded in a wide array of IoT scenarios.

KEYWORDS:

conductive screen-printing, Internet of Things, flexible substrates, wireless sensor networks

Conflict of interest statement

The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.

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