Silvio Hrabar

Self-oscillating/amplifying Electrically Small Antenna with 10:1 Bandwidth

Emulating Parametric Amplification with Switched-inductor Network and Current Source

Stability Analysis of Non-Foster Impedance Inverters

A Dual-Source RF Transmitter System Makes Broadband Matching of a Highly Reactive Antenna Feasible Without Non-Foster Elements

A Simple Handheld High-voltage Pulse Generator for Electrostimulation

A Simple Handheld High-voltage Pulse Generator for Electrostimulation

How does the operating bandwidth of non-foster negative capacitor affect its stability properties?

Stability investigation of positive/negative switching capacitor

Gyrator-based Subwavelength Radiator with Broadband Huygens Radiation Pattern

Stability investigation of positive/negative switching capacitor

Time-varying systems to improve the efficiency of wireless power transfer

How does the operating bandwidth of non-foster negative capacitor affect its stability properties?

Non-Foster approach to broadband optical metamaterials based on Lorentzian gain materials

Manipulation of Antenna Impedance and Feeding Signal by Active Impedance Inverters

Active Non-Foster-based Magneto-Electric Antenna

Time-Modulated Circuits and Metasurfaces for Emulating Arbitrary Transfer Functions

Širokopojasni zračeći element s magnetskom strujom generiranom pomoću grupe nefosterovskih elemenata

Analysis of Immittances and Equivalent Circuits of non-Foster Elements based on One-pole Amplifiers

70 Years of Research, Development and Teaching in the Fields of Antennas and Microwaves at the University of Zagreb

Non-Foster-inspired Time-varying Matching of a Small Transmitting Dipole

Use of Non-Foster Elements based on Compensated Passive Structure in Tunable Bandpass Filter

Dispersion and Stability Properties of Microwave Tunable Negative Inductance in CMOS Technology

A non-Foster Solution to Broadband Directive Radiation Pattern in Huygens and Magnetoelectric Antennas

Stability Analysis of Active Impedance Inverter based on Loss-compensated Passive Structure

Non-Foster-inspired Two-transmitter System based on Coherent Current/voltage Sources

Equivalent Circuit of OCS Negative Capacitor based on Linvill’s Floating NIC

Two Approaches to the Analysis of Cascaded Cylindrical Metasurfaces with Spatially-Varying Impedance Distribution

Stability-improved Non-Foster Inductance based on Compensated Passive Structure

Non-Foster Self-oscillating Single-loop Antenna - Experimental Investigation

Nefosterovski negativni kondenzator temeljen na vremenski promjenjivom kapacitetu

Amplification and Self-oscillations in Active Non-Foster Tank Circuit

Multi-band Antenna System for Fully Connected Smart E-bicycle

Open circuit stable non-Foster negative inductor

Physically Oriented Design of Negative Capacitors Based on Linvill's Floating Impedance Converter

Broadly tunable self-oscillating antenna based on negative immittance conversion

Stability Constraints on Practical Implementation of Parity-Time-Symmetric Electromagnetic Systems

Stable Positive/negative Capacitor for use in Active Artificial Structures

Preliminary Investigation of B-dot Wire Concept

Non-Foster Self-oscillating Single-loop Antenna

Superluminal propagation in artificial electromagnetic structures

Non-Foster radiofreqeuncy source

Optimization of radio frequency components of cryogenic nuclear magnetic resonance spectroscopy system

Arhitektura izlaznog stupnja poluvodičkog odašiljača velike snage za digitalnu radiodifuziju

Arhitektura izlaznog stupnja poluvodičkog kratkovalnog odašiljača velike snage za digitalnu radiodifuziju

Toward Self-oscillating Non-Foster Unit Cell for Future Active Metasurfaces

Arhitektura izlaznog stupnja poluvodičkog odašiljača velike snage za digitalnu radiodifuziju

Quadrature non-Foster-inspired Matching of Short Transmitting Dipole: Basic Preliminary Experiments

Investigation of Bandwidth of Band-pass Non-Foster Negative Capacitor for use in Active Metasurfaces

Ultrathin active polarization-selective metasurface at X-band frequencies

Sensitivity enhancement of NMR spectroscopy receiving chain used in condensed matter physics

Karakterizacija grafena za primjenu u elektromagnetskim strukturama

Investigation of Impedance Inverter based on Band-pass non-Foster Negative Capacitor

Improving Stability of Negative Capacitors for use in Active Metamaterials and Antennas

Electromagnetic structures and devices based on manipulation of displacement current flow

First ten years of active metamaterial structures with “negative” elements

A Reflective Polarization Converting Metasurface at X-Band Frequencies

High-power shortwave DRM transmitter in solid-state technology

Low-cost synthesis of high-quality graphene in do-it-yourself CVD reactor

Application of Active Elements in Artificial Electromagnetic Structures

Towards Optimal Noise Properties of NMR Antenna- Receiver Chain

Physically sound model of a non-Foster negative capacitor

Tailoring Stability Properties of One-dimensional Non-Foster Electromagnetic Structures

Optimal Noise Properties of NMR System Receiving Chain

Stability of Simple Lumped-distributed Networks with Negative Capacitors

Fabry-Pérot Antenna-transmitter Based on Active Metasurface: One-dimensional Proof-of-concept Demonstrator

Exploiting Intrinsic Dispersion of Metamaterials for Designing Broadband Aperture Antennas: Theory and Experimental Verification

Graphene for Metamaterials: Synthesis using Do-it-yourself Low-cost Reactor

Stability of Metasurface-Based Parity-Time Symmetric Systems

Stabilnost aktivnih radiofrekvencijskih sustava s prostorno-vremenskom simetrijom

A Reflective Active Metasurface

Analytical and experimental characterization of metasurfaces with normal polarizability

Low-cost Multi-layer Graphene for Linear/Non-linear Metasurface Applications

Towards Broadband Tunable non-Foster Radiating Systems

Streamlined flow of Displacement Current in Metatronic-inspired Anisotropic Structure

Elektromagnetske strukture temeljene na pasivnim i aktivnim metamaterijalima približno nulte permitivnosti

Towards verification of D-dot loop concept in optical regime

Broadband non-Foster-based Tunneling in radiofrequency regime

How to verify a concept of D-dot wire/loop in the optical regime — A feasibility study

Active radiofrequency metamaterial structures — Pros, cons and future trends

Leaky-wave Antenna based on non-Foster Metamaterial – Is Stable Operation Feasible?

Where does electromagnetics go?

Influence of transmission line on stability of networks containing ideal negative capacitors

Upotreba nefosterovskog negativnog kondenzatora u strukturama za subvalno tuneliranje i raspršenje elektromagnetske energije

Broadband Fabry-Pérot antenna with non-Foster metasurface - how to test the basic idea?

Shaping the light distribution of strongly focused systems for efficient excitation of optical nano-circuits

Application of D-dot Wire Concept in Optical Scattering and Radiating Systems

Ideal versus Realistic non-Foster Elements in Active Metamaterials

Transmission Lines Emulating Moving Media

Broadband Negative-capacitor-based Enhanced Transmission through Subwavelength Aperture

Verification of concepts of D-dot wire and D-dot loop in RF regime

Transmission lines emulating moving media

Analiza stabilnosti prijenosne linije opterećene negativnim kondenzatorima s operacijskim pojačalom

Omega transmission lines with applications to effective medium models of metamaterials

Practical realization of DB metasurface

Metamaterijali ili kako je nastao novi čudesni svijet na raskrižju fizike i elektrotehnike

Is Stable Dispersionless non-Foster DNG Metamaterial Indeed Impossible?

On the Transformer Effects in the Measurements of Capacitive Intrabody Communication Transmission Characteristics Using Grounded Instruments

From RF Metamaterials to Nanophotonics and back (Is it possible to bridge the gap between engineers and physicists?)

Restoring the Radiating Performances of Shortened Horn Antennas over a Broad Frequency Range

BROADENING OF CLOAKING BANDWIDTH BY PASSIVE AND ACTIVE TECHNIQUES

Marvelous World of Electromagnetic Waves: From Hertz Experiments, through Wireless Communications, to Metamaterials and Nano-photonics

Practical Realization of Broadband Reconfigurable non-Foster ENZ /MNZ/DPS Metamaterial

From Planar Transmission-line-based Cloak to Volumetric Cloak

Design of UHF Microstrip Non-Foster Leaky-wave Antenna

Broadband Fabry-Pérot radiation based on non-Foster cavity boundary

First 13 Lucky Years of Electromagnetic Metamaterials

On Bandwidth of Transmission-line-based and Inclusion-based Non-Foster ENZ Metamaterials

Is it Possible to Produce Graphene in (Almost) Home Environment?

Ultra-broadband simultaneous superluminal phase and group velocities in non-Foster epsilon-near- zero metamaterial

Subvalno tuneliranje elektromagnetske energije temeljeno na aktivnom ne-Fosterovom ENZ metamaterijalu

Practical Aspects of DB Metasurfaces- A Brief Review

Active Reconfigurable Metamaterial Unit Cell Based on Non-Foster Elements

Structures for Guiding and Radiation of Electromagnetic Energy based on Resonant Metamaterials

Non-Foster Microwave Metamaterials

Superluminal Propagation in Metamaterials: Anomalous Dispersion versus Non-Foster Approach

Towards High‐Power SW DRM Transmitter in Solid‐state Technology

An Idea for Optical DB-like Metasurface

Stability of Non-Foster Reactive Elements for use in Active Metamaterials and Antennas

Active non-Foster Metamaterials: From Intriguing Background Physics to Real-world Application

Numerical Analysis of Bandwidth of 2D Cylindrical Anisotropic EM Cloaks

Practical Realization of Isotropic RF Replica of Plasmonic Sphere

Towards Experimental Investigation of Metamaterial - based DB Surface in Waveguide Environment

New Research Directions in Broadband Active non- Foster RF Metamaterials

Experimental Verification of Metamaterial-based DB Unit Cell

Numerical Analysis of Non-Foster-based Leaky-wave Antenna

Stability Analysis of Active Broadband ENZ Line

Circuit-theory Interpretation of Optical Multilayer ENZ Metamaterial with Enhanced Bandwidth

Microwave Plasmonics

Practical realization of DB unit cell

Stability Analysis of Superluminal Metamaterial Transmission Line with Realistic Non-Foster Negative Capacitors

RF ENZ Dielectric Waveguide

Negative Capacitor and Negative Inductor Pave the Way to Ultra-broadband Metamaterials and Metasurfaces

Particle shape influence on a plasmon hot spot

RF Ne-Fosterovi negativni kapaciteti i negativni induktiviteti i moguće primjene u 2D metamaterijalima

Negative World of Metamaterials

Metamaterial Research at University of Zagreb

BANDWIDTH ANALYSIS OF LUMPED-ELEMENT-BASED PLANAR ANISOTROPIC CLOAK

Dispersionless ENZ and MNZ Metamaterials based on Non-Foster Elements

Investigation of Stability of Negative Impedances for Use in Active Metamaterials and Antennas

Feasibility study of uniaxial structures used for invisible cloak design

Non-foster elements : new path towards broadband enz and mnz metamaterials

Active non-Foster Metamaterials – State of the Art

Investigation of Basic Physics of Non-Foster Negative Capacitance in Time Domain

An RF Analog of ENZ Dielectric Waveguide

Vektorski analizator radiofrekvencijskih i mikrovalnih mreža

Active non-Foster Metamaterials From Invisibility to Superluminal Dispersion-free Transmission Lines

Negative capacitor paves the way to ultra-broadband metamaterials

An update of progress in non-Foster metamaterials

Recent Progress in DB Surface Realization

Numerical Analysis of a Lumped-element-based Planar Anisotropic Cloak

DB boundary based on resonant metamaterial inclusions

Broadband Superluminal Effects in ENZ Active Metamaterial

Broadband Epsilon-Near-Zero (ENZ) and Mu-Near-Zero (MNZ) Active Metamaterial

Broadband Epsilon-Near-Zero (ENZ) and Mu-Near-Zero (MNZ) Active Metamaterial

Analiza aktivne superluminalne prijenosne linije temeljene na negativnim kondenzatorima

Is it Feasible to be Invisible? From Plasma to Active Dispersionless Plasma-like

Feasibility of Use of Lumped Elements in Anisotropic 2D Cloak

Metamaterijali ili kako je dvoznačost kvadratnog korjena okrenula elektromagnetizam naglavačke

Non-Foster Active Transmission Line with Nearly Dispersionless ENZ Behavior

Towards Experimental Realization of DB Metamaterial Layer

Electromagnetic Metamaterials - First Ten (or Almost Hundred ?) Years

Towards active dispersionless ENZ metamaterial for cloaking applications

Metamaterials based on Non-Foster Elements

Basic Concepts of Active Dispersionless Metamaterial based on Non-Foster Elements

Radiofrekvencijska replika plazmoničke nano-kugle

Experimental Realization of RF Analog of Nanosphere-based Magnetic Plasmon

High-power metamaterial-based CRLH waveguide –state of the art and possible applications

Analysis of Magnetic Response of Circular Arrangement of RF Replicas of Isotropic Plasmonic Spheres

Numerical Investigation and Possible Realization of Metamaterial-based DB Boundary Surface

Homogenization of Active Transmission-line-based ENZ Metamaterials

Experimental Investigation of Active Broadband ENZ Transmission Line based on Negative Capacitors

Metamaterials based on non-Foster elements

Optimization of Wire-medium-based Shortened Horn Antenna

Propagation in Waveguide filled with Anisotropic MNG Metamaterial with Hyperbolic Dispersion - Rigorous Analysis and Physical Interpretation

Guiding and Radiating Properties of a Metamaterial-based Resonant-Slot Coupled Cavity Chain

Application of Wire-based Metamaterials for Antenna Miniaturization

Investigation of Guiding and Radiating Properties of Resonant-Slot Coupled Cavity Chain

Microwave Structures that Mimic Behavior of Plasmonic Optical Metamaterials

Application of Wire-based Metamaterials for Antenna Miniaturization

Application of Wire Media in Antenna Technology

Waveguide Miniaturization using Wire-based Metamaterial with Spatial Dispersion

Numerical and experimental investigation of basic properties of wire-medium-based shortened horn antennas

Experimental Investigation of Basic Properties of Wire medium-based Shortened Horn Antennas

Is it Possible to Overcome Basic Dispersion Constraints and Achieve Broadband Cloaking?

Numerical and Experimental Investigation of Field Distribution inside Four-arm Spherical Resonator that Mimics Plasmonic Nanosphere

Analysis of Uniaxial Multilayer Cylinders Used for Invisible Cloak Realization

Active Dispersionless Metamaterials – a Path towards Broadband Cloaking

Towards Investigation of Magnetic Response of Circular Arrangement of Plasmonic Spheres by Scaled Experiments in RF Regime

Metamaterial-based Scanning Leaky-wave Antenna, Design and Measurements

Homogenization of SRR-loaded Metamaterial Waveguide - Current State of the Art

Metamaterial-based Scanning Leaky-wave Antenna, Design and Measurements

Is it Possible to Overcome Basic Dispersion Constraints and Achieve Broadband Cloaking?

Towards High-power Metamaterial-based Scanning Leaky-wave Antenna for Plasma Physics Applications

Design of High-power Metamaterial-based Scanning Leaky-wave Antenna

Numerical and Experimental Investigation of Homogenization of SRR-loaded Rectangular Waveguide

Application of Wire Media in Antenna Technology

Analysis of Uniaxial Multilayer Cylinders Used for Invisible Cloak Realization

ENZ-based Shortened Horn Antenna – an Experimental Study

Experimental Investigation of Spatial Dispersion in Thin-Wire-Based Metamaterial

Active Dispersionless ‘ Plasmonic’ Metamaterial - a Step Towards Broadband Cloaking

Subwavelength Guiding of Electromagnetic Energy in Waveguide filled with Anisotropic MNG Metamaterial

Elektromagnetski modovi

Some Considerations on Radiation Properties of Antennas Embedded into Low-permittivity Metamaterial

Numerical and Experimental Investigation of Inductively Loaded Thin-wire-based Metamaterial

Metamaterial-based Waveguides: Principles and Applications

Spherical Resonators acting as RF Replicas of Plasmonic Nanospheres

Ravni elektromagnetski val

Guiding and Radiating Structures based on Volumetric Single-negative Metamaterials

Oklapanje

Magnetsko oklapanje

Physics of Wave Propagation in Miniaturized Metamaterial-based Waveguides: Analytical, Numerical and Experimental Investigation

Elektromagnetsko oklapanje

Električno oklapanje

Subwavelength Guiding of Electromagnetic Energy in Structures based on Anisotropic SNG metamaterials

Elektromagnetska pojava

Reply to "Comments on 'Waveguide Miniaturization Using Uniaxial Negative Permeability Metamaterial' "

Investigation of Electromagnetic Properties of a Chain of Plasmonic Nanospheres by Scaled Experiments in Radiofrequency and Microwave Regime

Influence of Spatial Dispersion on Properties of Waveguide filled with Wire Media – an Experimental Investigation

Direct Verification of Backward-wave propagation in Subwavelength Waveguide filled with Split-Ring Resonators

An Intuitive Experimental Demonstration of Backward-wave Propagation in One-dimensional Metamaterial Structures

Analytical and Experimental Investigation of Horn Antenna with Embedded ENZ Metamaterial Lens

Waveguide Experiments to Characterize the Properties of SNG and DNG Metamaterials

Simple Experimental Determination of Complex Permittivity or Complex Permeability of SNG Metamaterials

Shrinking Dimensions of the Unit Cell of Thin-wire-based ENG Metamaterial by Inductive Loading

Experimental Investigation of Waveguide filled with Uniaxial Thin-wire-based ENG Metamaterial

Scanning Leaky-wave Antenna based on a Waveguide filled with ENG Metamaterial

Basic Radiation Properties of Waveguides Filled With Uniaxial Single-Negative Metamaterials

Basic Radiation Properties of Waveguides Filled with Uniaxial Single Negative Metamaterials

Experimental Investigation of Radiation Properties of an Antenna Embedded in Low Permittivity Thin-Wire-Based Metamaterial

Experimental Investigation of Radiation Properties of an Antenna Embedded in Low Permittivity Thin-Wire-Based Metamaterial

Experimental Investigation of Radiation Properties of Waveguides Filled with Uniaxial Single Negative Metamaterials

Electromagnetic Metamterials in Antenna Technology

Microwaves in Chemical Finishing of Textiles

Experimental study of strip dipole FSS-loaded rectangular waveguide

Transverse Strip Arryas used as Hard Surfaces and AMCs in Miniaturized

Microwave Device for Termal Treatment of Cellulose Matetials

Backward-wave Meta-materials - the first four (or almost hundred ?) years

Numerical and Experimental Investigation of Field Distribution in Waveguide Filled With Anisotropic Single Negative Metamaterial

Miniaturized open-ended radiator based on waveguide filled with uniaxial negative permeability metamaterial

Klistron

Waveguide Miniaturization Using Uniaxial Negative Permeability Meta-Material

Miniaturized Waveguides, Resonators and Antennas based on Uniaxial Single-negative Metamaterial

Miniaturized Guiding Structures based on Evanescent Waveguide filled with Anisotropic Single-negative Meta-material

Microwave Device for Thermal Treatment of Cellulose Materials

Novel Sub-wavelength Waveguides based on Single-Negative Meta-Materials

Miniatruization of Rectangular Waveguide using Uniaxial Negative Permeability Material

Active Double Negative Transmission Line with Negative Group Velocity

Experimental Investigation of Subwavelength Resonator based on Backward-wave Meta-material

Experimental Investigation Of Two-Dimensional Backward-Wave Meta-Material Based On Parallel-Plate Waveguide Filled With Double Ring Resonators

Miniaturized Guiding Structures Based on Evanascent Wavguide Filled with Anisotropic Single-negative Meta-material

Experimental Verification of Negative Index of Refraction by Lateral Beam Displacement

Introduction to Speciall Session Electromagnetics in COmmunications

Miniaturization of Rectangular Waveguide using Uniaxial Negative Permeability Meta-material

Backward-wave Waveguide based on Uniaxial Anisotropic Negative Permeability Meta-material

Experimental Investigation of Backward Meta-materials in Waveguide Environment

Backward-wave Meta-materials - a Brief Review

Rectangular Waveguide Filled with Split-ring Resonators

Backward Wave Propagation in Waveguide Filled with Negative Permeability Meta Material

Rectangular Waveguide filled with Artificial Backward Material

Capacitively loaded loop as basic element of negative permeability

Investigation of Negative Permeability, Negative Permittivity and Backward Meta-materials in Waveguide Environment

Artififical Material with Negative Effective Permeability based on Capacitively Loaded Loops

Simplified Analysis of Split Ring Resonator used in Backward Meta-material

A Simple Two-Dimensional Periodic Structure with Negative Effective Permeability

A Bipolar Charge Measurement System for Aerosol Characterization

Analysis of Coupling between 900 MHz Mobile Telephone and Implanted Pacemaker

A Simple Model of Electromagnetic Coupling Between Mobile Telephone and Implanted Pacemaker

Mikrovalni analizator spektra

: Interference between Mobile Telephone and Electronic Equipment – Rumours or a Real Engineering Problem?

A Bipolar Charge Measurement Szstem for Aerosol Characterization

A Simple Low Cost Three-probes Waveguide Reflectometer in 7 GHz Band

Modeling of feeding source in analysis of EM interactions between handset antennas and humans

Influence of source internal impedance on uncertainity of SAR calculations in RF hazard studies using FDTD

A simple low cost three-probe waveguide reflectometer in 7 GHz band

Electromagnetic Interference between Wireless Telecommunication Device and Implanted Pacemakers and Defibrillators

Three-probe reflectometer error analysis

Some Experiences with Implementation of the Neumeyer Six-port Calibration Method

Influence of the three-probe reflectometer parameters on measurement accuracy

Exposure Evaluation to Electromagnetic Field in Telecommunication Switching Centre and Relay Tower Working Environment

Three-probe Microstrip Reflectometer

Jednostavno RF širokopojasno pretpojačalo za analizator spektra

Mjerenje vrlo slabih radiofrekvencijskih signala pomoću analizatora spektra

Profesionalna izloženost elektromagnetskimpoljima

Mjerenje elektromagnetske interferencije između satelitskih i zemaljskih radiokomunikacija

Technology of the six-port microwave network analyzers

Dupleksna antenska skretnica sa helikoidalnim rezonatorima

A Simple Extension of Scalar Network Analyzer Measurement Capabilities to Impedance Measurement

Širokopojasni simetrični petoprilazni hibrid u mikrostrip tehnici i njegova upotreba u šestoprilaznom reflektometru

Mjerenje kompleksnog faktora refleksije pomoću tri ili četiri nepomične probe