Manos. M. Tentzeris

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A vertically-integrated, fully inkjet-printed mi­ crowave structure is demonstrated for the first time, where both the metallic elements and the platform substrate are completely fabricated with the additive inkjet printing process. The surface uniformity of SU-S polymer ink is outlined as a function of layer deposition to provide a desirable profile for a(More)
This work deals with the design and fabrication of antennas for radio frequency identification (RFID) tag devices operating in the low microwave frequency range. Paper substrate material and inkjet printing process have been used to guarantee mechanical flexibility and ultra-low production costs of the antenna. A new antenna design methodology has been(More)
Carbon nanotube (CNT) composites are sensitive to the presence of gases due to their high surface-to-volume ratio and hollow structure that are well suited for gas molecule absorption and storage. Such sensing capability is here integrated with UHF RF identification (RFID) technology to achieve passive and low-cost sensors, remotely readable. CNT film(More)
— A novel design of a highly sensitive wireless passive radio frequency strain transducer is presented based on a patch antenna loaded with an open loop that is capable of sensing strain remotely. The new idea of utilizing a cantilever at the gap of the open loop significantly improves the sensitivity of resonant frequency shifts. In measurements, the(More)
—Maximizing the Radio Frequency Identification (RFID) performance is one of the main challenges in application domains, such as logistics and supply chain management, where the undesired effect of Tag collisions can significantly degrade the speed of the inventory process. The dominating UHF EPC Class-1 Generation-2 (EPC Gen2) protocol only specifies(More)
—A low-cost and disposable microfluidic-tunable band-stop filter is presented which is fabricated utilizing a novel inkjet-printing based microfluidics platform. The proposed bandstop filter is based on a split-ring-resonator (SRR) unit cell embedded within the ground of a co-planar waveguide (CPW) transmission line. By loading the capacitive gap of the SRR(More)
Monitoring fatigue cracking of large engineering structures is a costly and time-intensive process. The authors' present the first low-cost inkjet-printed patch antenna sensor that can passively detect crack formation, orientation and shape by means of resonant frequency shifts in the two resonant modes of the antenna. For the first time, the effect of(More)
An innovative wearable, partially self-powered, health monitoring and indoor localization shoe-mounted sensor module is presented. The system's novel shoe sole serves the double role of (i) medical-grade temperature probe for human body monitoring and (ii) renewable energy scavenger, which transforms the human motion to electrical energy. Mounted on the(More)
—This paper describes a tunable metamaterial (MM) absorber that incorporates novel microfluidic channels and is realized using inkjet printing on a photo-paper substrate. The fabricated sample demonstrated frequency-switching capability owing to distilled water flowing in the microfluidic channels. In addition, the resonant frequency was changed from 4.42(More)
This paper will discuss recent advances in state-of-the-art inkjet printing of novel materials for wireless sensing applications. The work includes development of a prototype sensor based on high performance inkjet printed graphene thin films. The thin films were fabricated from direct write of environmentally friendly, water soluble graphene oxide (GO)(More)