2019/3
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Recent Submissions
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Design and Implementation of Fractional-Order Microwave Integrator
(Společnost pro radioelektronické inženýrství, 2019-09)A novel design of fractional-order microwave integrator using shunt connected open-stubs with transmission line sections in cascade is proposed. Design is obtained by optimizing the L1-norm based error function in Z-domain ... -
The Detection Performance of the Dual-Sequence-Frequency-Hopping Signal via Stochastic Resonance Processing under Color Noise
(Společnost pro radioelektronické inženýrství, 2019-09)Can the Dual-Sequence-Frequency-Hopping (DSFH) as a military emergency communication mode work under strong color noise? And is there any detection improvement of the DSFH signal via stochastic resonance (SR) processing ... -
A Modified Compressed Sensing-Based Recovery Algorithm for Wireless Sensor Networks
(Společnost pro radioelektronické inženýrství, 2019-09)In this paper, a novel compressed sensing (CS) acquisition and joint recovery of spatiotemporal correlated signals algorithm is presented for effective data collection and precise sensors data streams reconstruction in ... -
Dim Target Detection in Infrared Images Using Saliency Algorithms
(Společnost pro radioelektronické inženýrství, 2019-09)Infrared (IR) target detection and tracking are commonly used in modern defense systems. Target detection is the first and very important step for several surveillance applications. Long distance between imager and targets ... -
Convolutional Neural Networks for Profiled Side-channel Analysis
(Společnost pro radioelektronické inženýrství, 2019-09)Recent studies have shown that deep learning algorithms are very effective for evaluating the security of embedded systems. The deep learning technique represented by Convolutional Neural Networks (CNNs) has proven to be ... -
Comparison of MOSFET Gate Waffle Patterns Based on Specific On-Resistance
(Společnost pro radioelektronické inženýrství, 2019-09)This article describes waffle power MOSFET segmentation and defines its analytic models. Although waffle gate pattern is well-known architecture for effective channel scaling without requirements on process modification, ... -
A New Approach to OTH Main Parameters Determination
(Společnost pro radioelektronické inženýrství, 2019-09)In this work, we propose a method based on a simulation that incorporates several models to provide the set of parameters needed on Over-The-Horizon radars (OTHR) performance evaluation, which consists in a versatile ... -
Two-dimensional Underdetermined DOA Estimation of Quasi-stationary Signals via Sparse Bayesian Learning
(Společnost pro radioelektronické inženýrství, 2019-09)In order to improve the direction-of-arrival (DOA) estimation performance of quasi-stationary signals (QSS) using a uniform circular array (UCA), this paper addresses novel method in the context of sparse representation ... -
Efficient Gradient-Based Algorithm with Numerical Derivatives for Expedited Optimization of Multi-Parameter Miniaturized Impedance Matching Transformers
(Společnost pro radioelektronické inženýrství, 2019-09)Full-wave electromagnetic (EM) simulation tools have become ubiquitous in the design of microwave components. In some cases, e.g., miniaturized microstrip components, EM analysis is mandatory due to considera¬ble cross-coupling ... -
Half Mode Substrate Integrated Waveguide Leaky Wave Antenna with Broadside Gain Enhancement for Ku-Band Applications
(Společnost pro radioelektronické inženýrství, 2019-09)A miniaturized frequency scanned leaky wave antenna (LWA) based on half mode substrate integrated waveguide (HMSIW) with open stop-band suppression is proposed. The modified cross-slot is etched on the top of HMSIW as the ... -
Analysis of Uniform and Tapered CPW-fed Zigzag Monopoles Used as Feed Structures for Wide-Slot Radiators
(Společnost pro radioelektronické inženýrství, 2019-09)CPW-fed zigzag monopole radiators can be used to excite wide slots etched on the CPW-grounds for gain enhancement purposes, without significantly altering its resonance. The circuit analysis for CPW-fed zigzag monopole ... -
Simulation and Fabrication of Broadband Tunable Phase Shifter Based on Transmission Line Metamaterial
(Společnost pro radioelektronické inženýrství, 2019-09)This paper presents a kind of broadband, low-loss tunable phase shifter based on transmission line metamaterial. An inherent high-pass backward-wave response property of a left-handed metamaterial based on coplanar waveguide ... -
Compact UWB Printed Slot Antenna with Three Extra Bands and WiMAX Rejection Functionality
(Společnost pro radioelektronické inženýrství, 2019-09)A compact ultra-wideband (UWB) printed slot antenna with additional bands of 870-960 MHz, 1.67-1.84 GHz, 2.33-2.57 GHz for GSM-900, GSM-1800 and Bluetooth respectively along with WiMAX band rejection functionality at ... -
Multiport Network Model of Double–stub Loaded Microstrip Ring Antenna for Tri–band Operation
(Společnost pro radioelektronické inženýrství, 2019-09)A microstrip ring antenna has a single broadside fundamental radiating mode. In this communication one of the arms of the ring has been loaded with two stubs, so that the perturbation in the fields results in broadside ... -
Design of Compact Polarization Insensitive Triple Bandstop Frequency Selective Surface with High Stability under Oblique Incidence
(Společnost pro radioelektronické inženýrství, 2019-09)This paper proposes a novel design of a triple band frequency selective surface (FSS) that acts as a bandstop filter at 1.92 GHz, 3.5 GHz and 5.64 GHz. The bandstop frequencies resemble to GSM, WLAN and WiMAX application ... -
An Ultra-Thin Low-Frequency Tunable Metamaterial Absorber Based on Lumped Element
(Společnost pro radioelektronické inženýrství, 2019-09)In this paper, an ultra-thin metamaterial absorber with a stretching transformation (ST) pattern is proposed and fabricated in the low-frequency range. The absorber is composed of dielectric layer, metal patch loading ... -
On the Topological Robustness of Vortex Modes at Microwave Frequencies
(Společnost pro radioelektronické inženýrství, 2019-09)Vortex fields carrying orbital angular momentum are robust with respect to a wide range of external disturbances and exhibit self-healing properties. These peculiar characteristics have been deeply investigated at optical ... -
Electromagnetic Modeling of Rat’s Head: Comparison of Formulations and Models
(Společnost pro radioelektronické inženýrství, 2019-09)Reliable inverse imaging of source currents in rat’s brain requires sufficiently accurate and CPU-time moderate forward models of fields to calibrate inverse solvers. In this paper, we compare different mathematical ... -
Grounded Coplanar Waveguide-fed Compact MIMO Antenna for Wireless Portable Applications
(Společnost pro radioelektronické inženýrství, 2019-09)A multi-input multi-output (MIMO) antenna with high isolation capability is proposed in this paper. The proposed MIMO antenna configuration is composed of two monopole antennas, each of them consists of a single rectangular ... -
Phaseless Single-Step Microwave Imaging Technique for Biomedical Applications
(Společnost pro radioelektronické inženýrství, 2019-09)In the present work, an improved phaseless approach to microwave imaging is presented. Starting from the Contrast Source formulation of the scattering problem, a single-step procedure with no intermediate phase-retrieval ...
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