This paper proposes a low-profile and highly efficient endfire radiating travelling-wave antenna based on spoof surface plasmon polaritons (SSPPs) transmission line. The aperture is approximately $0.32\lambda_0\times0.01\lambda_0$ where $\lambda_0$ the space wavelength at operational frequency 8 GHz. provides an radiation beam within 7.5-8.5 maximum gain total efficiency reaches 9.2 dBi $96\%$, respectively. In addition to operation, it also scanning functionality 9-12 Measurement results...

Nowadays, robust sensors for glucose sensing application is almost a necessity every diabetic individual. In this work, (20 mm x 10 mm) contact-based sensor has been successfully realized on thin and flexible polyamide substrate, with the area being bifilar spiral resonator (BSR). The proposed was based detecting resonance frequencies shifts at ultrahigh (UHF) as result of changes in concentration. BSR acts cascaded metasurface which, around resonant frequency, forms plasmon dispersion...

This article proposes a method of using highly efficient spoof surface plasmon polariton (SSPP) endfire sensor for monitoring aqueous glucose solutions and on-body measurements. Occupying an area around (52 mm $\times24$ mm), the proposed radiates beam into water solution with substantially reduced effective aperture. At coplanar waveguide (CPW) port sensor, pair triangular ground planes was added to suppress sidelobes, which have been proven be counter-productive in sensing. The slow-wave...

This paper presents a highly sensitive closed loop enclosed split ring biosensor operating in microwave frequencies for measuring blood glucose levels the human body. The proposed biosensor, working on principle of high field confinement and concentrated energy, has been tested using both in-vitro in-vivo methods. allows sensor to concentrate energy at surface which results improved accuracy measurements. For measurements, de-ionized water solutions different concentrations. miniaturized...

Diabetes is one of the most persistent and common immedicable diseases characterized by elevated levels blood glucose, rendering early detection diagnosis diabetes utmost important. Irrespective currently available invasive minimally techniques, noninvasive glucose measurement has drawn a lot attention in recent years continues to open up new areas for further research. This article provides comprehensive overview developments over last decade area monitoring research, with particular...

Non-invasive blood glucose monitoring at microwave frequencies is generally thought to be unreliable in terms of reproducibility measurements. The failure reproduce a measurement from one experiment another major part due the unwanted interaction leaky waves between ambient environment and measuring device. In this work, we have overcome problem by simply eliminating modes through use surface electromagnetic curved Goubau line. proposed methodology, fixed volume blood-filled skin tissue was...

This paper proposes an ultra-compact filtering power divider with a wide harmonic suppression band. In this design, the proposed (PD) in ideal case has 100% size reduction and infinite number of harmonics suppression. However, real case, 92% suppresses 2nd to 45th harmonics. The small-proposed is designed at 0.9 GHz. typical Wilkinson two long quarter-wavelength branches. new resonant series LC branches are used instead divider’s branches, leading performance improvements PD. To best...

The permittivity of blood glucose is not a strong function its concentration in microwave or millimeter-wave frequencies. Measuring concentrations remains challenge, particularly the presence interference caused by ambient leaky waves. In this paper, however, we demonstrate that near-linear correlation between and was noticeably observed at whispering gallery mode resonance. Method: proposed sensor vacuum suction aspirator partially wounded with turn Goubau line. This arrangement enabled...

Toroidal inductors achieve low loss by constraining magnetic flux to a well-defined path and away from ground planes semiconducting substrates. This paper presents micromachined implementation of the toroidal inductor, with focus primarily on microwave integrated circuits low-resistivity silicon wafer achieving Q 22 self-resonant frequency greater than 10 GHz. A verified analytic model is developed.

Direct simulation of the starting process an electric machine using a 3-D transient finite-element analysis (FEA) is very time consuming. To overcome this difficulty, interpolative modeling large solid pole synchronous motor (SPSM) presented and its simulated in paper. In order to take into account effects cooling ducts end turns, three different simplified models (FEMs) are proposed reduce computing save memory storage. With algorithm, appropriate postprocess exploited deduce effective core...

Fabrication of biocompatible electrodes for the investigation catecholamines is a known challenge. In this work, methionine was chosen as modifier fabrication carbon paste electrode by electropolymerization, through cyclic voltammetry. The electrochemical behavior poly(methionine) modified characterized voltammetry simultaneous determination dopamine (DA) and uric acid (UA) in phosphate-buffered solution at pH 7.0. absence an amino layer, bare exhibits rather poor voltammetric signals DA UA...

This paper reports the fabrication of printed circuit lines on a 5 μm thick membrane that minimizes dielectric loss and effectively eliminates surface modes, both which are important for operation at millimeter-wave submillimeter-wave frequencies. The relatively low-cost low-temperature process uses photosensitive resin (SU-8) to form enables devices be mounted it.

Nowadays, the operating principle of most experimental electromagnetic glucose sensors is based on effect an anomalous dispersion caused by a direct contact between object under test and two-dimensional metasurface. Due to repeated uses, metasurface will be subjected chemical attack over time. To avoid this problem, work proposes novel sensor that equipped with interfacial dielectric layer 0.254 mm thickness separate The results our analysis suggest that, if sufficiently thin, there no...

This paper proposes an efficient transmission line modulation by using the bending technique to realize low profile leaky wave antennas in Ku-band for frequency scanning and sensor applications. The focuses mainly on effects of terms sharpness edges. right-hand/left-hand can be designed form zig-zag pattern with sharp corners only right-hand sinusoidal patterns smooth corners. In this presentation, we demonstrate that lines kind used highly broadband impedance matching high gain...

This paper explores the feasibility of wireless energy harvesting by direct voltage multiplication on lateral waves. Whilst free space is undoubtedly a known medium for harvesting, waves are too attenuated to support realistic transmission energy. A layer thin stratified dielectric material suspended in mid-air can form substantially less pathway, which efficiently supports propagation The conductivity does not appear be critical factor rendering impossible. In this paper, mathematical model...

A power divider (PD) with a wide stopband and simple symmetric structure using open- short-ended stubs is analyzed implemented in this paper. In the proposed divider, for first time, output resistor divided into two sections are used between resistors. The incorporated have resulted controllable bandwidth PD, which 40% of fractional considering 3 dB attenuation insertion loss. PD operates at 2 GHz, shows more than 20 return isolation losses. addition, obtained loss operating frequency...

This paper reports the realization of copper E-plane circuits on a micromachined 5 micron thick organic membrane. As membrane is both thin and optically smooth, dielectric loss excitation surface modes are virtually eliminated. Measured losses lines no more than 0.4 dB/cm at W-band. The relatively low-cost low-temperature process uses photosensitive resin (SU-8) to form self-supporting which devices can be mounted. finline resonator an bandpass filter presented.

This paper presents a class of open-ended voltage multipliers, which the input is displacement current from Goubau line and output multiplied DC voltage. When terminated with 500 ohm load, proposed multipliers have rectified microwave power at 20 dBm into 5–6 V, corresponding to conversion efficiency approximately 50%. The maximum reaches V if circuit unloaded. Due its characteristic impedance being comparable that free space, feeding has been successfully used as monopole antenna for...