Browsing 2020/2 by Issue Date
Now showing items 1-16 of 16
-
History and Progress of Fractional-Order Element Passive Emulators: A Review
(Společnost pro radioelektronické inženýrství, 2020-06)This paper presents a state-of-the-art survey in the area of fractional-order element passive emulators adopted in circuits and systems. An overview of the different approximations used to estimate the passive element ... -
On-chip Energy Harvesting for Implantable Medical Devices
(Společnost pro radioelektronické inženýrství, 2020-06)The paper brings an overview of main challenges in implantable medical devices (IMD) research area, where the main objective of discussion covers wireless power transferring (WPT) systems as the hot topic dedicated to ... -
Suppressing the Effect of Impulsive Noise on Millimeter-Wave Communications Systems
(Společnost pro radioelektronické inženýrství, 2020-06)The Fifth Generation (5G) wireless communication systems are expected to satisfy higher data rates, network scalability, increasing number of connections and higher traffic densities in a cost-effective manner. The key ... -
Underdetermined Direction-of-Arrival Estimation with Coprime Array via Atomic Norm Minimization
(Společnost pro radioelektronické inženýrství, 2020-06)The coprime array provides the possibility of resolving more signals than the sensors for the direction-of-arrival (DOA) estimation application. However, the non-consecution of its virtual array raises challenges for making ... -
Multiband Filter Design Using Generalized Mapping Functions and Synthesis with Lumped Resonators
(Společnost pro radioelektronické inženýrství, 2020-06)In this paper, a new multiband frequency mapping function is proposed to design multiband filter. The presented mapping function is a generalized form of the sequential low pass to band pass (LPtoBP) transformation. The ... -
Miniaturization and Harmonic Suppression of Power Divider using Coupled Line Section for High Power Applications
(Společnost pro radioelektronické inženýrství, 2020-06)This paper presents a compact transmission line based on the coupled line section to reduce the circuit size of Gysel power divider (GPD). The line composed of one direct line and one coupled line section. The coupled line ... -
Sliding Window Evaluation of the Wiener-Hopf Equation
(Společnost pro radioelektronické inženýrství, 2020-06)This paper presents an efficient method for solving the Wiener-Hopf equation in a sliding window by calculating the correlation matrices recursively. Furthermore, a novel algorithm is introduced for evaluating the inverse ... -
Resonances in Dielectric Bodies of Revolution -- FIT-MoM Analysis
(Společnost pro radioelektronické inženýrství, 2020-06)In this paper the Finite Integration Technique (FIT) hybridized with the Method-of-Moments (MoM) is used to find resonance frequencies and quality factors of open cylindrical dielectric resonators (CDRs). The technique is ... -
Novel Bayesian Track-Before-Detection for Drones Based VB-Multi-Bernoulli Filter and a GIGM Implementation
(Společnost pro radioelektronické inženýrství, 2020-06)Joint detection and tracking of drones is a challenging radar technology; especially estimating their states with unknown measurement variances. The Bayesian track-before-detect (TBD) approach is an efficient way to detect ... -
Efficient Relay Selection Algorithm for Non-Orthogonal Amplify-and-Forward Cooperative Systems over Block-Fading Channels
(Společnost pro radioelektronické inženýrství, 2020-06)In this paper, an efficient relay selection (RS) algorithm for non-orthogonal amplify-and-forward (NAF) cooperative systems over block-fading channels, also known as block-fading NAF (BFNAF) protocol, is developed. The ... -
Speech Emotion Recognition using Unsupervised Feature Selection Algorithms
(Společnost pro radioelektronické inženýrství, 2020-06)The use of the combination of different speech features is a common practice to improve the accuracy of Speech Emotion Recognition (SER). Sometimes, this leads to an abrupt increase in the processing time and some of these ... -
A Multi-Reconfigurable CLL-Loaded Planar Monopole Antenna
(Společnost pro radioelektronické inženýrství, 2020-06)In this paper, multi-reconfiguration capabilities of a planar monopole antenna with two switchable capacitively loaded loops (CLLs), as near field resonant parasitic elements, are introduced. The idea is to apply the CLLs ... -
Implementation of a New and Modified Scheme of Butler Matrix for C-Band Applications with Enhanced Characteristics
(Společnost pro radioelektronické inženýrství, 2020-06)In this paper, the structure of a miniaturized broadband 4 × 4 Butler matrix is presented. All components of the proposed feeding network are designed in a way that they have the smallest electrical size and acceptable ... -
A Compact Second-order Chebyshev Bandpass Filter Using U-shaped Resonator and Defected Ground Structure
(Společnost pro radioelektronické inženýrství, 2020-06)A compact bandpass filter using U-shaped resonators and Defected Ground Structures is proposed and designed at 5.8 GHz. The U-shaped resonators are placed around an indirectly coupled feed line while the Defected Ground ... -
Theoretical Investigations on CPW-Fed Single and Dual-Polarized Slot Radiators Using Schelkunoff’s Biconical Antenna Analysis
(Společnost pro radioelektronické inženýrství, 2020-06)This article presents a closed-form analysis of CPW-fed slot dipole structures with the help of Schelkunoff’s biconical antenna analysis technique and Babinet’s principle. Input characteristics of CPW-fed slot dipole ... -
Wearable Slot Antenna for Biomedical Applications: Mutual Coupling and External Interference
(Společnost pro radioelektronické inženýrství, 2020-06)A small slot antenna has desirable characteristics for radio communications and location of an internal transceiver in-vivo medical applications. The effect of coupling between two identical antennas on the human torso was ...