This paper has presented a comprehensive overview of on-chip antennas, which remain the last bottleneck for achieving true SoC RF solutions. CMOS remains mainstream IC technology choice but is not well suited requiring use innovative design techniques to overcome its shortcomings. Codesign circuits and antennas provide leverage designer achieve optimum performance. The layout dictated by foundry specific rules whereas characterization requires special text fixtures. For future highly...

Solid electrolyte interphase (SEI)-forming agents such as vinylene carbonate, sulfone, and cyclic sulfate are commonly believed to be film-forming additives in lithium-ion batteries that help enhance graphite anode stability. However, we find the effect resultant SEI may not only reasons for enhanced This is because as-formed cannot inhibit Li+–solvent co-intercalation once additive removed from electrolyte. Instead, show Li+ solvation structure, which modified by these additives, plays a...

Wireless and wearable sensors attract considerable interest in personalized healthcare by providing a unique approach for remote, noncontact, continuous monitoring of various health-related signals without interference with daily life. Recent advances wireless technologies have promoted practical applications due to their significantly improved characteristics, such as reduction size thickness, enhancement flexibility stretchability, conformability the human body. Currently, most researches...

Despite the growing interest in reconfigurable intelligent surfaces (RISs) for millimeter-wave (mm-wave) bands, and considerable theoretical work reported by communication community, there is a limited number of published works demonstrating practical implementations experimental results. To authors’ knowledge, no literature has results RISs covering n257 n258 mm-wave bands. In this work, we propose novel wideband RIS design that covers entire 5G simulations, unit cell can maintain phase...

A complete characterization of the inkjet printing process using metallic nanoparticle inks on a paper substrate for microwave frequencies up to 12.5 GHz as well its application low-cost, high gain and wideband antenna design are demonstrated in this work. Laser heat sintering nanoparticles compared first time which demonstrate immense cost benefits laser sintering. The antennas fabricated characterized include Vivaldi UWB band exhibits significantly higher 8 dBi currently published printed...

Abstract The increasing energy demands of the world's population and quickly diminishing fossil fuel reserves together suggest urgent need to secure long-lasting alternative renewable resources. Here, we present a THz antenna integrated with rectifier (rectenna) for harvesting infrared energy. We demonstrate resonant bowtie that has been optimized produce highly enhanced localized fields at bow tip. To benefit from this enhancement, is realized between overlapped antenna's arms using 0.7 nm...

A low-cost inkjet-printed multiband antenna envisioned for integration into flexible and conformal mobile devices is presented. The structure contains a novel triangular iterative design with coplanar waveguide (CPW) feed, printed on Kapton polyimide-based substrate dimensions of 70×70×0.11 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> . covers four wide frequency bands measured impedance bandwidths 54.4%, 14%, 23.5% 17.2%, centered...

Body integrated wearable electronics can be used for advanced health monitoring, security, and wellness. Due to the complex, asymmetric surface of human body atypical motion such as stretching in elbow, finger joints, wrist, knee, ankle, etc. need physically flexible, conforming, stretchable. In that context, state‐of‐the‐art are unusable due their bulky, rigid, brittle framework. Therefore, it is critical develop stretchable which stretch absorb strain associated with movements. While...

Abstract Chronic wounds affect millions of patients around the world and their treatment is challenging as early signs indicating development are subtle. In addition, a type chronic wound, known pressure ulcer, develops in with limited mobility. Infection frequent bleeding indicators wound development. this article, we present an unprecedented low cost continuous wireless monitoring system, realized through inkjet printing on standard bandage, which can send warnings for parameters like...

In this paper, an integrated design with a multiple-input multiple-output (MIMO) antenna system for fourth generation (4G) and fifth (5G) applications is presented. The proposed contains two-element slotbased MIMO 4G connected array (CAA)-based potential 5G band. Two rectangular loops are etched on the periphery of ground plane. top bottom portions thin act as two antennas, while parts their sides acting arrays. fabricated commercially available Roger 4350 substrate ϵ <sub...

Photodetectors (PDs) based on organic-inorganic hybrid materials such as graphene and perovskites have recently emerged at the forefront of research in optoelectronic devices. Despite remarkable progress performance devices materials, some aspects stability so far not been thoroughly addressed. This paper serves to demonstrate a fully inkjet-printed PD fabricated by perovskite (CH3NH3PbClx-3I3) layer between two electrodes graphene/perovskite/graphene (GPG) heterostructure. The GPG is found...

Significant gain and bandwidth improvement of inkjet-printed antennas with integrated artificial magnetic conductor (AMC) is achieved by utilizing wideband ground-backed frequency selective surfaces (FSSs) to overcome the high losses organic substrates such as paper. A microstrip-fed monopole mounted on an demonstrated improve 5 dB over previous works exhibit much wider impedance while maintaining a thin antenna profile 20% electrical size reduction. The effect AMC substrate reduction caused...

Metallic molybdenum disulfide (MoS2), e.g., 1T phase, is touted as a highly promising material for energy storage that already displays great capacitive performance. However, due to its tendency aggregate and restack, it remains formidable challenge assemble high-performance electrode without scrambling the intrinsic structure. Here, we report an electrohydrodynamic-assisted fabrication of 3D crumpled MoS2 (c-MoS2) formation additive-free stable ink scalable inkjet printing. The c-MoS2...

Human skin and hair can simultaneously feel pressure, temperature, humidity, strain, flow—great inspirations for applications such as artificial skins burn acid victims, robotics, vehicular technology. Previous efforts in this direction use sophisticated materials or processes. Chemically functionalized, inkjet printed vacuum‐technology‐processed papers albeit cheap have shown limited functionalities. Thus, performance and/or functionalities per cost been limited. Here, a scalable “garage”...

This communication presents a novel integrated antenna system for cognitive radio (CR) applications. The design consists of compact four-element reconfigurable annular slot-based multiple-input-multiple-output (MIMO) within an ultrawideband (UWB) sensing antenna. All the elements are planar in structure and designed on single substrate (RO-4350) with dimensions $60\times 120\times 1.5$ mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> ....

Currently, silver-nanoparticle-based inkjet ink is commercially available. This type of has several serious problems such as a complex synthesis protocol, high cost, sintering temperatures (∼200 °C), particle aggregation, nozzle clogging, poor shelf life, and jetting instability. For the emerging field printed electronics, these shortcomings in conductive inks are barriers for their widespread use practical applications. Formulating particle-free silver potential to solve issues requires...

In this letter, a 28.5-bit chipless RFID tag, based on paper substrate and realized using inkjet printing technique is presented. Operating within ultrawideband, the tag occupies compact size of 2 ×4 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . Focusing applications requiring time date identification, novel encoding presented that allows efficient frequency band allocation number required instances variables. A figure merit (FOM)...

Abstract Printing metal nanowires are particularly attractive as compared to conventional coating methods due the ease of processing, direct patterning, and large-scale fabrication capability. However, it is still challenging print nanowire patterns that simultaneously have high conductivity, transparency, flexibility, stretchability. Three steps been taken in this work balance transparency conductivity screen-printed flexible stretchable silver films, (1) selection ink formulation, (2)...

This paper proposes a simple novel technique for self-isolating MIMO antenna mm-wave applications. elements with inter-element separation of 0.2 mm ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$0.023\lambda $ </tex-math></inline-formula> at 35 GHz) and measured high isolation (>50 dB) are presented. By observing the concentration surface waves on radiating patch, several rigorously optimized slots...

Recent advances in electrocardiogram (ECG) diagnosis and monitoring have triggered a demand for smart wearable ECG electrodes readout systems. Here, we report the development of fully screen-printed gentle-to-skin wet electrode integrated with scaled-down printed circuit board (PCB) packaged inside 3D-printed antenna-on-package (AoP). All three components (i.e., silver nanowire-based conductive part, gel, adhesive gel) are on flexible plastic substrate only require 265 times less metal part...

Realization of a U-slot tri-band monopole antenna on low-cost paper substrate using inkjet-printed technology is presented for the first time. The U-shaped slot optimized to enhance bandwidth and achieve operation 1.57, 3.2, 5 GHz with measured impedance bandwidths 3.21%, 28.1%, 36%, respectively. fabricated through metallic nanoparticle ink standard commercial paper. Thus, can be used cover GPS, WiMAX, HiperLAN/2, WLAN. has compact size 12 × 37.3 0.44 mm <sup...

Fractional order circuit elements (inductors and capacitors) based impedance matching networks are introduced for the first time. In comparison to conventional integer L-type networks, fractional much simpler versatile. Any complex load can be matched utilizing a single series element, which generally requires two in approach. It is shown that all Smith chart circles (resistance reactance) actually pairs of completely identical circles. They appear case, where overlap each other. The concept...

A first fully integrated 5.2-GHz CMOS-based RF power harvester with an on-chip antenna is presented in this paper. The design optimized for sensors implanted inside the eye to wirelessly monitor intraocular pressure of glaucoma patients. It includes a five-stage rectifier antenna, dc voltage limiter, two sensors, low dropout regulator, and MOSCAP based storage. chip has been designed fabricated standard 0.18-μm CMOS technology. To emulate environment measurements, custom test setup developed...

In this paper, fully inkjet printed multilayer capacitors and inductors are fabricated characterized using poly 4-vinylphenol (PVP) ink as the dielectric layer silver nanoparticle conductor. Inkjet through vias, created with a novel dissolving method used to make RF structures in printing process. The vias have been realized 350-nm PVP film exhibit resistance better than 0.1 Ω. Spiral from 10 75 nH maximum quality factors around five. 10-nH inductor exhibits self-resonant frequency slightly...