2021/1
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Planar Hexagonal Antenna with Dual Reconfigurable Notched Bands for Wireless Communication Devices
(Společnost pro radioelektronické inženýrství, 2021-04)In this paper, a planar hexagonal antenna with dual tunable notched band using varactor diodes is presented. The designed antenna operates in the frequency range of 2 GHz to 8 GHz and is loaded by a complementary split ... -
Design of HIS-backed Miniaturized Cross Slotted Antenna for Circular Polarization Using Modal Analysis: A Novel Approach
(Společnost pro radioelektronické inženýrství, 2021-04)This work presents a novel design technique of a circularly polarized miniaturized cross slotted antenna backed by a High Impedance Surface using substructure based Characteristic Mode analysis. The electromagnetic behavior ... -
A Compact Bow-tie Shaped Wide-band Microstrip Patch Antenna for Future 5G Communication Networks
(Společnost pro radioelektronické inženýrství, 2021-04)In this paper, a novel compact bow-tie shaped microstrip patch antenna for wide-band application is presented. The proposed geometry consists of a modified bow-tie structure at the top of the Rogers RT-5880 substrate with ... -
WB Notch Anxtennas in MIMO System with High Isolation Performance
(Společnost pro radioelektronické inženýrství, 2021-04)This article presents a detailed analysis and design of an ultra-wideband (3.1 GHz – 10.6 GHz) notch antennas in a two-element MIMO system with high isolation performance. The wideband spectrum is notched at the WiMAX band ... -
Cylindrical Dielectric Resonator Antenna Offering Low Cross-Polarization for Point-to-Point Communication Systems
(Společnost pro radioelektronické inženýrství, 2021-04)In this paper, a cylindrical dielectric resonator antenna (CDRA) offering low cross-polarization (XP) for point-to-point communication systems is presented. Three linear arrays of air vias (LAAV) are incorporated along the ... -
Single-fed Patch Antenna with Reconfigurable Orbit Angular Momentum Order
(Společnost pro radioelektronické inženýrství, 2021-04)Order reconfiguration of orbital angular momentum (OAM) is the foundation for wireless communications based on OAM state multiplexing. As the symmetry of a circular patch is disturbed by an arc segment, two degenerate modes ... -
Satellite Communication Synchronization Based on Combining Multi-Differential Correlations in the High Doppler Channel
(Společnost pro radioelektronické inženýrství, 2021-04)In this paper, a pilot-aided synchronization method based on combining multi-differential correlations (MDCS) is proposed to overcome the obstacles in the synchronization of high-speed mobile satellite communication links. ... -
Automatic Modulation Classification of Real Signals in AWGN Channel Based on Sixth-Order Cumulants
(Společnost pro radioelektronické inženýrství, 2021-04)Automatic modulation classification (AMC) represents an important integral part of modern communication systems. While novel AMC algorithms based on complex neural network structures showed significant performance improvements, ... -
Performance of Cell-Free Systems with Channel Reciprocity Errors
(Společnost pro radioelektronické inženýrství, 2021-04)Cell-free systems are characterized by the absence of a cell-based spatial subdivision. In these systems a large number of access points may serve each user, which contribute to improve signal transmission conditions. In ... -
Wearable and Wireless Distributed Multi-site FES Prototype for Selective Stimulation and Fatigue Reduction: A Case Study
(Společnost pro radioelektronické inženýrství, 2021-04)The objective of the work is to evaluate the feasibility of improving selective stimulation and reducing muscle fatigue in upper extremity rehabilitation with a self-designed multi-site functional electrical stimulation ... -
Simplified Analytical Approach for an Airborne Bent Wire Ground Penetrating RADAR Antenna System
(Společnost pro radioelektronické inženýrství, 2021-04)In this paper, modified analytical equations for the total electric field intensity in the far field region of a 10 MHz bent wire antenna have been proposed. The antenna system is meant for the airborne ground penetrating ... -
Code Tracking Performance Analysis of GNSS Receivers with Blanking Model under Periodic Pulse Interference
(Společnost pro radioelektronické inženýrství, 2021-04)As one of the most common types of interference, pulse interference and its suppression methods have been widely studied, in which the blanking method consumes less hardware resources and it is more commonly used in the ... -
Design, Testing and Performance Evaluation of Beam Positioning System for Free Space Optical Communication System
(Společnost pro radioelektronické inženýrství, 2021-04)Beam wandering and the wavefront distortion are the significant sources for the power loss in Wireless Optical Communication (WOC). In this paper Full Factorial Design (FFD) and Back Propagation Neural Network (BPNN) ... -
Reed-Solomon Coded Cooperative Spatial Modulation Based on Nested Construction for Wireless Communication
(Společnost pro radioelektronické inženýrství, 2021-04)This paper proposes the Reed-Solomon coded cooperative spatial modulation (RSCC-SM) scheme based on nested construction of two Reed-Solomon (RS) codes over quasi-static Rayleigh fading channel. In this construction, the ... -
Modeling Networks of Probabilistic Memristors in SPICE
(Společnost pro radioelektronické inženýrství, 2021-04)Efficient simulation of stochastic memristors and their networks requires novel modeling approaches. Utilizing a master equation to find occupation probabilities of network states is a recent major departure from typical ... -
Thresholds Optimization of Decomposed Vector Rotation Model for Digital Predistortion of RF Power Amplifier
(Společnost pro radioelektronické inženýrství, 2021-04)In this paper, we propose an efficient approach for optimizing the decomposed vector rotation (DVR) model for digital predistortion (DPD). The DVR model’s basis functions are constructed piecewise by dividing the input ... -
Emulation of Three-Pinch-Off Memristor Emulator Based on Highly Non-Linear Charge-Flux Characteristics
(Společnost pro radioelektronické inženýrství, 2021-04)The presented work describes an exclusive mathematical model for the multi-pinch-off behaviour generated by such non-linear memristors. The described mathematical results are based on the calculation of inflection points ... -
Novel Miniaturized Equal/Unequal HMSIW Filtering Power Dividers Based on the Evanescent Mode Technique
(Společnost pro radioelektronické inženýrství, 2021-04)In this paper, three miniaturized equal/unequal filtering power dividers (FPDs) applying the half-mode substrate integrated waveguide (HMSIW) and metamaterial concepts are offered. The operational method of the presented ... -
Structure and Circuit Solution of a Bidirectional Wireless Power Transmission System in Applied Robotics
(Společnost pro radioelektronické inženýrství, 2021-04)In this paper the development of structure and circuit solution for a bidirectional wireless power transmission system is presented, based on current fed push-pull inverter. Existing solutions are analyzed, as well their ... -
Comparison between Measured Data-Carrying VDSL2 Cable Radiation and Radiation Limits for Wire-Line Telecommunication Networks
(Společnost pro radioelektronické inženýrství, 2021-04)Digital subscriber line (DSL) is a technology that are widely used for bringing high-speed Internet access to the users’ premises. Unfortunately, the use of the DSL over existing copper telecommunication networks can result ...
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