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high-frequency impedance matching

A Transformerless Multiinput Multioutput DC–DC Boost Converter Using Fuzzy Logic Controller for Electric Vehicle Applications

A Transformerless Multiinput Multioutput DC–DC Boost Converter Using Fuzzy Logic Controller for Electric Vehicle Applications

... In isolated multiinput converters high frequency transformer is used for isolation and impedance matching between two sides of the converter[3].These converters need inverters in the input ...

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A Novel Antenna Feeding Network with Separately Resonant Frequency and Impedance Matching Tunable Capability

A Novel Antenna Feeding Network with Separately Resonant Frequency and Impedance Matching Tunable Capability

... distance-based impedance matching networks for a tunable HF system,” Progress In Electromagnetics Research, ...the impedance-matching technique for high- temperature superconducting ...

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Review of Impedance Matching Networks for Bandwidth Enhancement

Review of Impedance Matching Networks for Bandwidth Enhancement

... A paper by Bo-Yang Chang was published in 2005 that describes a low-voltage; low-power ultra-wideband (UWB) low-noise amplifier (LNA) for IEEE 802.15.3a. A simplified Chebyshev filter is used to achieve the input ...

5

Sensitive Radio-Frequency Measurements of a Quantum Dot by Tuning to Perfect Impedance Matching

Sensitive Radio-Frequency Measurements of a Quantum Dot by Tuning to Perfect Impedance Matching

... with high fidelity requires sensitive, fast, and noninvasive read- ...electrical impedance, this goal can be achieved using radio-frequency reflec- tometry of an electrical resonator incorporating ...

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Antenna Ultra Wideband Enhancement by Non-Uniform Matching

Antenna Ultra Wideband Enhancement by Non-Uniform Matching

... The impedance matching of the feed by probe compensation, using L-shape probe and any reactive loading as evoked in [4], is another basic principle of broadband ...enhanced impedance bandwidth can be ...

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Perancangan Low Noise Amplifier dengan Teknik Non Simultaneous Conjugate Match untuk Aplikasi Radar S-Band

Perancangan Low Noise Amplifier dengan Teknik Non Simultaneous Conjugate Match untuk Aplikasi Radar S-Band

... Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, motor vehicles, and weather formations. One of the obstacles ...

5

Compact Microstrip Lowpass Filter with Ultra-Wide Stopband Using Patch Resonators and Open Stubs

Compact Microstrip Lowpass Filter with Ultra-Wide Stopband Using Patch Resonators and Open Stubs

... and high suppression level is ...improved impedance matching, symmetrically loaded resonant patches, open stubs and stair shaped high impedance stub are introduced in the ...cutoff ...

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Novel Broadband High Gain Antenna Designed by Suspended Cylinder and Shorting PIN

Novel Broadband High Gain Antenna Designed by Suspended Cylinder and Shorting PIN

... resonance frequency is generated due to circumferential current across the ...resonance frequency is generated due to electric field coupling between the cylinders because of shorting of the cylinders by the ...

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A Compact Coplanar Waveguide Fed Wide Tapered Slot Ultra-Wideband Antenna

A Compact Coplanar Waveguide Fed Wide Tapered Slot Ultra-Wideband Antenna

... the impedance matching performance, the profile of the antenna is tried to be ...operating frequency band, except a bandwidth loss of about 0.2 GHz in the high end ...

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The Impact of Substrate Materials to the Design of UWB Modern Antennas

The Impact of Substrate Materials to the Design of UWB Modern Antennas

... a high radiation ...for high gain when the ground plane size is reduced to nearly half that of ...Ansoft High Frequen- cy Simulator Structure (HFSS), one of Finite Element Method (FEM) based software ...

8

A transformer based 60 GHz CMOS LNA for mm-wave applications

A transformer based 60 GHz CMOS LNA for mm-wave applications

... use high performances for reliable mm-wave ...input matching in cascode ...acknowledge impedance matching by exploiting a ...input matching and ...the frequency range of ...

6

A Reconfigurable Active Array Antenna System with the Frequency Reconfigurable Amplifiers Based on RF MEMS Switches

A Reconfigurable Active Array Antenna System with the Frequency Reconfigurable Amplifiers Based on RF MEMS Switches

... for high rate data transmission such as orthogonal frequency division multiplexing ...loss, high isolation, as well as linearity [7, ...given impedance point. Moreover, available ...

13

A New High Frequency Grid Impedance Estimation Technique for the Frequency Range of 2 to150 kHz

A New High Frequency Grid Impedance Estimation Technique for the Frequency Range of 2 to150 kHz

... grid impedance estimation based on signal processing for frequency range 2-150 kHz is ...injection. Impedance estimation using signal injection follows the Ohm’s ...of impedance estimation in ...

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A Planar Monopole UWB Antenna with Improved Lower End Bandwidth Using an L-Shaped Stub Extended on the Ground Plane

A Planar Monopole UWB Antenna with Improved Lower End Bandwidth Using an L-Shaped Stub Extended on the Ground Plane

... The circular monopole was investigated in [4]. It consists of a circular radiator connected to a 50-Ω microstrip line printed on the top of a substrate, and a ground plane printed at the back of the substrate. In [5], it ...

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High frequency impedance based fault location in distribution system with DGs

High frequency impedance based fault location in distribution system with DGs

... For a large distribution system (especially the one with a large number of connection nodes), locating a fault from single-ended measurement is challenging. In this case, the wide area measurement based location is ...

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Low Cost Strip-to-Bilateral-Slotline Transition on Wide Slotline

Low Cost Strip-to-Bilateral-Slotline Transition on Wide Slotline

... good high frequency features of the transition, say 10 GHz and above; however, the dielectric material is too expensive for massive ...test frequency, making it surplus the remaining operating ...

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High-Sensitivity Vegetation High-Impedance Fault Detection Based on Signal's High-Frequency Contents

High-Sensitivity Vegetation High-Impedance Fault Detection Based on Signal's High-Frequency Contents

... As shown by these results, security comes as the most relevant parameter presented by the method. It is fair to assume that, for an HIF detection method, security should come as a priority over dependability since HIFs ...

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High frequency impedance based fault location in distribution system with DGs

High frequency impedance based fault location in distribution system with DGs

... system frequency impedance based fault location methods have been employed in industry for quite a ...system impedance equations the influences of the fault resistance can be reduced ...

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Design and Development of a Novel EBG Cell

Design and Development of a Novel EBG Cell

... (PBG), high impedance surface (HIS), metamaterial (MTMs) or electromagnetic crystals ...a frequency band gap across which electromagnetic wave cannot ...particular frequency band is exploited ...

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High Impedance Properties of Two-Dimensional Composite Right/Left-Handed Transmission Lines

High Impedance Properties of Two-Dimensional Composite Right/Left-Handed Transmission Lines

... a high impedance property (zero reflection phase) ...measured impedance and reflection phase ...resonant frequency and the circuit parameters for 2D CRLH TLs was clarified by deriving an ...

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