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A fully passive, compact, and low-cost capacitive wireless RFID-enabled sensing system for capacitive sensing and other Internet of Things applications is proposed. The proposed RFID tag antenna based sensor consists of a closely spaced twoelement dipole RFID tag antenna array with a printed capacitive sensor connected to one of the tags. A(More)
| In this paper, various ambient energy-harvesting technologies (solar, thermal, wireless, and piezoelectric) are reviewed in detail and their applicability in the development of self-sustaining wireless platforms is discussed. Specifically, farfield low-power-density energy-harvesting technology is thoroughly investigated and a benchmarking prototype of an(More)
July/August 2013 1527-3342/13/$31.00©2013IEEE Digital Object Identifier 10.1109/MMM.2013.2259398 Sangkil Kim (ksangkil3@gatech.edu) and Manos M. Tentzeris (etentze@ece.gatech.edu) are with the School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-250, USA. Chiara Mariotti (chiara.mariotti@ studenti.unipg.it),(More)
In this letter, a novel electromagnetic band-gap structure (EBG) with single-ring resonators is inkjet-printed on the commercially available photo paper using conductive nano-silver ink. The printed EBG array is placed above a copper sheet, forming an artificial magnetic conductor (AMC) reflector at the designed frequency range (2.4 2.5 GHz). A microstrip(More)
In this paper, we propose the first dual-band retrodirective reflector array using Substrate Integrated Waveguide (SIW) and inkjet-printed technologies on flexible low-cost substrates, such as paper, for operability around 3.6GHz and 5.8GHz. In addition, it offers the versatility of multiband retro-directive designs potentially covering numerous RFID(More)
A fully passive, compact, and low-cost capacitive wireless radio frequency identification (RFID)-enabled sensing system for capacitive sensing and other Internet of Things applications is proposed. This calibration-free sensor utilizes a dual-tag topology, which consists of two closely spaced RFID tags with dipole antennas and printed capacitive sensor(More)
The implementation of Substrate Integrated Waveguide (SIW) structures in paper-based inkjet-printed technology is presented in this paper for the first time. SIW interconnects and components have been fabricated and tested on a multilayer paper substrate, which permits to implement low-cost and eco-friendly structures. A broadband and compact ridge(More)
Inkjet printing on flexible paper and additive manufacturing technologies (AMT) are introduced for the sustainable ultra-low-cost fabrication of flexible radio frequency (RF)/microwave electronics and sensors. The paper covers examples of state-of-the-art integrated wireless sensor modules on paper or flexible polymers and shows numerous inkjetprinted(More)
Inkjet-printing is a very promising technology for the development of microwave circuits and components. Inkjetprinting technology of conductive silver nanoparticles on an organic flexible paper substrate is introduced in this study. The paper substrate is characterised using the T-resonator method. A variety of microwave passive and active devices, as well(More)
The design of a 920 MHz active oscillator antenna using low cost flexible substrate materials is presented. Flexible amorphous silicon a-Si solar cells are properly integrated in the available area of the circuit substrate preserving the conformal nature of the circuit and providing operational autonomy by harvesting solar power without affecting the(More)