Browsing Ústav radioelektroniky by Title
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60GHz MillimeterWave Propagation Inside Bus: Measurement, Modeling, Simulation, and Performance Analysis
(IEEE, 20190624)Millimeterwave (mmWave) transmission over the unlicensed 60GHz spectrum is a potential solution to realize highspeed internet access, even inside mass transit vehicles. The solution involves communication between users ... 
About vi Pinched Hysteresis of Some NonMemristive Systems
(Hindawi, 20180924)A special subset of twoterminal elements providing pinched hysteresis loops in the voltagecurrent plane with the lobe area increasing with the frequency is analysed. These devices are identified as nonmemristive systems ... 
Accurate constant phase elements dedicated for audio signal processing
(MDPI, 20191115)This review paper introduces realvalued twoterminal fully passive RC ladder structures of the socalled constant phase elements (CPE). These lumped electronic circuits can be understood as twoterminal elements described ... 
An Additional Approach to Model Current Followers and Amplifiers with Electronically Controllable Parameters from Commercially Available ICs
(Versita, 20121122)Several behavioral models of current active elements for experimental purposes are introduced in this paper. These models are based on commercially available devices. They are suitable for experimental tests of current ... 
Analog Implementation of FractionalOrder Elements and Their Applications
(20190624)With advancements in the theory of fractional calculus and also with widespread engineering application of fractionalorder systems, analog implementation of fractionalorder integrators and differentiators have received ... 
Analog Implementation of FractionalOrder Elements and Their Applications
(20190624)With advancements in the theory of fractional calculus and also with widespread engineering application of fractionalorder systems, analog implementation of fractionalorder integrators and differentiators have received ... 
Analogue Implementation of a FractionalOrder PI^{\lambda} Controller for DC Motor Speed Control
(IEEE, 20190612)In this paper, an approach to design a fractionalorder integral operator s(lambda) where 1 < lambda <0, using an analogue technique, is presented. The integrator with a constant phase angle 80.1 degree (i.e. order lambda ... 
Analysis and Verification of IdenticalOrder Mixed Matrix FractionalOrder Capacitor Networks
(IEEE, 20180702)In the open literature while capacitors are introduced with 90 degrees phase angle, here we described our fabricated polymer composite, mixed matrix, as a fractionalorder capacitor (FoC). The effect on phase and ... 
Applications of novel behavioral implementation of a controllable generalized current conveyor
(IEEE, 20180420)This contribution presents a novel modification of a behavioral model for a generalized current conveyor of second generation based on commercially available active devices. This model is suitable for preliminary tests of ... 
Behavioral model for emulation of ZCCGVDCC
(The Institute of Electronics, Information and Communication Engineers (IEICE), 20160129)This paper presents a proposal and an experimental analysis of behavioral emulator of socalled zcopy controlledgain voltage differencing current conveyor (ZCCGVDCC) based on commercially available devices. Most of ... 
Binary Memory Implemented by Using Variable Gain Amplifiers With Multipliers
(IEEE, 20201101)This work describes design process toward fully analogue binary memory where two coupled piecewiselinear (PWL) resistors are implemented using novel network topology with voltage gain amplifiers (VGA). These versatile ... 
Capacitance Multiplier Using Small Values of Multiplication Factors for Adjustability Extension and Parasitic Resistance Cancellation Technique
(IEEE, 20200805)This paper presents a new concept of a capacitance multiplier using the topology of differential voltage buffer and current conveyor, where the capacitor is connected to the current input terminal. The presented topology ... 
CMOS Current Feedback Operational AmplifierBased Relaxation Generator for Capacity to Voltage Sensor Interface
(MDPI, 20181218)This paper presents a simple relaxation generator, suitable for a sensor interface, operating as a transducer of capacitance to frequency/period. The proposed circuit employs a current feedback operational amplifier, ... 
The CMOS Highly Linear Current Amplifier with Current Controlled Gain for Sensor Measurement Applications
(MDPI, 20200818)This paper introduces a new currentcontrolled currentamplifier suitable for precise measurement applications. This amplifier was developed with strong emphasis on linearity leading to low total harmonic distortion (THD) ... 
A CMOS Multiplied Input Differential Difference Amplifier: A New Active Device and Its Applications
(MDPI AG, 20170126)This paper presents a newly developed active device, referred to as a multiplied input differential difference amplifier (MIDDA), which allows operations of summation/subtraction and multiplication of input signals. It was ... 
CMOSRC Colpitts Oscillator Design Using Floating FractionalOrder Inductance Simulator
(IEEE, 20180805)This paper deals with CMOS fractionalorder inductance (FoL) simulator design and its utilization in 2.75thorder Colpitts oscillator providing high frequency of oscillation. The proposed floating FoL is composed of two ... 
Coarse Time Synchronization Utilizing Symmetric Properties of ZadoffChu Sequences
(IEEE, 20180219)We demonstrate a novel metric for coarse time synchronization suitable for wireless communication. The novel metric benefits from a symmetry of ZadoffChu sequences in the time domain. The time domain symmetry is obtained ... 
Compact MOSRC VoltageMode FractionalOrder Oscillator Design
(IEEE, 20170904)A new voltagemode fractionalorder oscillator, employing in total 12 MetalOxideSemiconductor (MOS) transistors, is introduced in this paper. The proposed circuit is composed of two operational transconductance amplifiers, ... 
Comparative Study of Discrete Component Realizations of FractionalOrder Capacitor and Inductor Active Emulators
(World Scientific, 20180206)Due to the absence of commercially available fractionalorder capacitors and inductors, their implementation can be performed using fractionalorder differentiators and integrators, respectively, combined with a ... 
Comparative Study of OpAmpbased Integrators Suitable for FractionalOrder Controller Design
(IEEE, 20190701)In this paper, a fractionalorder capacitor (FOC) of an order = 0.89 (i.e. constant phase angle –80.1 degree) was emulated via Valsa RC network with five branches. The network component values were optimized using modified ...