This article presents a novel design of portable planar microwave sensor for fast, accurate, and non-invasive monitoring the blood glucose level as an effective technique diabetes control prevention. The proposed incorporates four cells hexagonal-shaped complementary split ring resonators (CSRRs), arranged in honey-cell configuration, fabricated on thin sheet FR4 dielectric substrate.The CSRR sensing elements are coupled via microstrip-line to radar board operating ISM band 2.4-2.5 GHz....

Planar microwave sensors are considered an attractive choice to noninvasively probe the dielectric attributes of biological tissues due their low cost, simple fabrication, miniature scale, and minimum risk human health. This paper develops measures a novel biosensor for non-invasive real-time monitoring glucose level. The design comprises rectangular plexiglass channel integrated on triple-pole complementary split ring resonator (TP-CSRR). proposed sensor operates in centimeter-wave range...

This paper presents a high-sensitive planar microwave sensor based on the metamaterial technology, integrated with microfluidic channel to be used for liquid sensing in variety of biomedical applications. The design comprises three cells circular complementary split ring resonators (CSRRs) engraved ground plane dielectric substrate cascaded configuration. are excited time-varying electric field coupled from microstrip-line (MTL) etched bottom side substrate. proposed multiple would enhance...

Microwave planar sensors have a great interest in the medical environment due to their ability measure bulk dielectric parameters of biological tissues through non-invasive and contact-less sensing properties. Changes these parameters, which are frequency dependent, can be representative pathological state tissues. In this work, an improved prototype sensor based on microwave ring resonator operating at 1 GHz for fundamental mode is presented. The objective obtain better sensitivity...

A new procedure to determine the noise parameters of a linear two-port from set experimental data is introduced. It consists in directly solving system four nonlinear equations instead using least-squares fit or casting original form that with respect parameters. The proposed symbolic solution provides insight error analysis. This method compared Minimax optimisation performed on an figures measured for nine different source admittances.

In this paper, we propose a gated pulse generator incorporating two modulation schemes for use in an ultra-wideband impulse radio system. A pseudo-noise sequence prescaler modulates the impulses with specific schemes, such as position, bi-phase or combination of both. The resulting monocycle is designed Jazz Semiconductor BiCMOS SiGe technology. Measurements validate circuit operation over supply voltage 2.7 V and power consumption 243 mW. output monocycles approximate Gaussian monocycles,...

This paper examines the effect of finger fat pad thickness on accuracy performance complementary split-ring resonator (CSRR)-based microwave sensors for non-invasive blood glucose level detection. For this purpose, a simplified four-layer Cole-Cole model along with CSRR-based sensor have been comprehensively analyzed and validated through experimentation. Computed scattering parameter (S-parameter) responses to different layer thicknesses are employed verify concordance studied measurement...

A specific modeling method is investigated in order to predict the large-signal modulation behavior of integrated electroabsorption modulators (EAMs) for high-speed applications optical networks. The equivalent dynamic model includes main nonlinearity EAM and takes into account electrical characteristics optoelectronic device. developed design process a suitable powerful tool simulating over wide dc bias frequency ranges, scattering parameters, small-signal response, eye-diagram performance....

This paper presents a new design approach for achieving microwave active filters, based on actively coupled resonators. The method, dedicated to narrowband and wideband filtering applications, associates core cells with different resonance frequencies, adjusted separately, synthesize Butterworth, Chebyshev or other all-pole approximation. It is illustrated by two chips: - 3-pole band pass filter centered at 12GHz characterized 15.5 dB gain, 3dB bandwidth of 1.8 GHz rejection better than 15...

In this paper, modeling and experimentation of a Rectangular Patch Resonator (RPR) covered with dielectric superstrate are investigated. The RPR criteria established theoretically experimentally, to be used in future prospects as an electromagnetic (EM) sensor for the characterization superstrates. theoretical model is based on moment method (MoM) via Galerkin's approach, which three types basis testing functions used. These well spectral dyadic Green function efficiently implanted compact...

The concept of using rectangular patch resonator (RPR) sensors for microwave characterization biological materials is the non-invasive nature technique. It being used extensively complex dielectric properties measurements in region. Applications systems, substrate and superstrate are made with low loss best operation. When RPR as sensor, unknown material under test; objective then to extract from parameters this material. An accurate modeling structures, associated measurement data, required...

This paper presents the design and performance of a single-ended transimpedance amplifier (TIA) for gigabit passive optical networks implementing orthogonal frequency division multiplexing modulation format. The circuit is realized using an industrial GaAs integrated technology. Low power consumption small chip area are main challenges in TIA design. On-wafer characterization terms <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">S</i>...

Planar microwave sensors are very interesting for health applications, such as the investigation of dielectric properties biological tissues in a non-invasive and contactless manner. In this paper, three structures complementary split-ring resonators (CSRRs) coupled to microstrip lines investigated with ex-vivo characterization animal tissues. Compared ring resonators, their main advantage consists more compact sensors, enabling better local The extraction parameters is obtained by an...

This paper presents a new recursive method to compute the higher order sensitivities of any node voltage, as well circuit performances (gain, input/output impedance, or reflection coefficients) with respect all parameters. The starting point is adjoint system approach and expressions obtained for first-order when using nodal analysis. Instead further differentiating them, images derivatives are generated by recursion up given order. procedure illustrated three examples.

This paper presents a description of new method to generate short impulse based on counter designed BiCMOS SiGe technology. architecture includes modify the PRF (pulse repetition frequency) by changing division ratio and an easy way control frequency center. A pseudo-noise sequence prescaler modulates impulses with specific modulation schemes, such as pulse position, bi-phase or combination both. The total power consumption is 65 mA at 7GHz.

For use in low-noise receivers of communication or radar systems, three different two-stage amplifiers for 60 GHz, using a 0.15-μm PM-HEMT technology on GaAs, have been compared terms gain and noise figure. The realized coplanar waveguide (CPW) differ the matching networks two stages, optimized either maximum bias condition. At 59 minimum figure 3.0 dB with an associated 9.3 12.2 3.8 were achieved.

Microwave photonics contributes through ultrafast devices to the processing of high data rates. In this area, microwave photoconductive switches (MPCSs) in integrated technology have proved their performances control transmission frequency signals complex systems. Their ability switch signal phase and magnitude is fully defined by a frequency-dependant ON/OFF ratio R_ON/OFF determined from S-Parameters measurements domain. This paper reports on new design MPCSs be used, after...

At low illumination levels, the performance of image sensors is severely limited by their intrinsic electrical noise. In buried double junction (BDJ) active pixel sensor (APS), as in any CMOS sensor, noise primarily due to photodetector and in-pixel transistors. this paper, we present an exact analysis BDJ APS charge storage mode during both reset integration phases. Classical frequency-domain performed for interval a kT/C can be put evidence. During phase, stationary state condition never...

Electromagnetic interference (EMI) is part of electromagnetic compatibility (EMC) handling all issues non-intentional between transmitters and receivers. In this document, various models methods are described in order to carry out EMI simulations evaluate the performance degradation cosite equipments a system. A next step will consist validating developed simulation tool. The chosen study case 2.4 GHz ISM band Bluetooth/WiFi interaction. We have carried BER measurements which results,...

Non-invasive planar complementary split ring resonators (CSRRs) coupled to microstrip line for measuring the dielectric properties of materials and biological tissues are presented in this paper. The expectations health professionals increasingly turning less invasive surgical procedures treatments. In particular, monitoring vital parameters (sweat, water lungs, etc.) or evolution certain pathologies, such as cancer cells, could be observed regularly if suitable devices were developed...

A new symbolic representation of the derivatives node voltages with respect to various circuit parameters is described. Using this approach, it possible find values third- and higher-order sensitivities no order limitation, for a microwave having an arbitrary topology. This procedure has been implemented in program written MICROSOFT FORTRAN, 386 PC. There are two versions, one computing all first- p-order output-node voltage parameters, other which computes only specific sensitivity,...