wide-band frequency range
Study and Design of a Circular Shaped CPW fed Broadband Fractal Antenna for UWB Application
... ultra wide band frequency range and that is between ...ultra wide band products due to the ...ultra wide band antenna such as sub wavelength structures and ...
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Gain Improvement of CPW feed UWB Antenna for Personal Wireless Communication Applications
... Ultra wide-band antenna operating over the frequency range of to GHz for personal wireless short range communication applications is designed and ...the frequency range 3 ...
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Vibrational Resonance in the Classical Morse Oscillator Driven by Narrow-Band and Wide-Band Frequency Modulated Signals
... the range parameter, d is the velocity proportional damping amplitude, f is the unmodulated carrier amplitude, g is the modulation index, ω and Ω are the two frequencies of the external signals with ...
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Printed Frequency Scanning Antenna Array with Wide Scanning Angle Range
... structure, wide frequency band, frequency beam scanning characteristics and easiness of integration with planar circuits, scientists and researchers have paid much attention to planar ...
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Design of a Triple Band Notched Compact FSS at UWB Frequency Range
... bandstop Frequency Selective Surface (FSS) prototype based on square split ring resonators (SSRRs) and a square loop (SL) structure for Ultra Wide Band (UWB) frequency ...Triple band ...
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Antenna Design for Ultra Wide Band Communications and Frequency Selective Surfaces
... • Frequency Domain : The frequency domain technique is based on the measurement of the channel at discrete frequency points using a frequency sweep by a vector network analyzer ...dynamic ...
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A Compact Frequency Reconfigurable Unequal U-Slot Antenna with a Wide Tunability Range
... reconfiguration. Frequency agility is typically provided by scaling the antenna dimensions physically or ...a frequency reconfigurable device, five main methods can be used: mechanical change of the ...
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SOLDERING CONNECTIONS FORMATION AT INFLUENCE OF ENERGY OF ELECTROMAGNETIC FIELDS IN WIDE FREQUENCY BAND
... In modern 3D electronic micromodules with surface mount technology (SMT) it is necessary to provide high density of contact connections, which should have the minimum transitive electric resistance (to 2,0 mОm), high ...
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Design of a Passive Vibration Absorber to Attenuate Wide Band Vibration
... perform wide band vibration ...the frequency response over a certain frequency range, Rice (1993) also obtained the optimal parameters (stiffness and damping) of two single degree of ...
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Propagation in Tunnels: Experimental Investigations and Channel Modeling in a Wide Frequency Band for MIMO Applications
... short range communications (DSRC) system operating inside a typical arched highway tunnel is discussed, and in this case the channel impulse response was measured with a sounder at ...
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Analysis of a dual mode wide-band switching reconfigurable oscillator for optimal frequency applications
... voltage range of integrated oscillators will be excess than desired due to process and temperature variations, which will lead to ...mode frequency spans to reduce each frequency span phase noise ...
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Frequency Notched Wide Band Planar Monopole Antennas
... UWB frequency range has interference to the existing com- munication systems frequency ...more frequency bands, requiring dual or triple frequency ...IEEE802.11a frequency ...
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Research on EMI Based on Automobile DC Brushed Motor
... On an automobile, the electromagnetic interference of Direct Current Brushed Motors is a kind of electromagnetic interference with a wide range of frequency band (from 30MHz to 2.5GHz on ...
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Distribution Pattern of Trees in a Hydrological Gradient below the Paraná Paraguay River Confluence
... West bank. Most of species had a wide range of fre- quencies in the topographic gradient (Figures 3(a) and 5(a)). Almost 50% of the occurrence of the canopy trees comprising A. inundata, G. spinosa and Inga ...
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Separation Of Delta , Theta , Alpha & Beta Activities In EEG To Measure The Depth Of Sleep And Mental Status
... various frequency bands has been of interest to researches dealing with ...fundamental frequency rhythms and determine whether a relatively short EEG record taken in a routine laboratory is normal or ...The ...
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Effect of Periodicity on Percentage Bandwidth of a Wide Band Frequency Selective Surface (FSS)
... a Frequency Selective Surface (FSS). Five designs of Frequency Selective Surfaces are proposed which shows how the percentage bandwidth varies with the periodicity of FSS ...
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A Frequency Agility Synthesizer with Low Phase Noise for Fully Electronic Millimeter Wave Imaging
... Abstract—A wide Ka-band frequency agility synthesizer with low phase noise and high frequency stability is presented in this paper, which serves as the emission source of transmitter and the ...
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Wide frequency range active damping of LCL filtered grid connected converters
... fixed frequency with a significant decrease of its amplitude as the number of parallel converters ...a frequency which moves to the low frequency region with attenuated magnitude as more converters ...
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Design of Cartesian Feedback RF Power Amplifier for L-Band Frequency Range
... Abstract—A phase-alignment system is used fully integrate a power amplifier, Cartesian feedback linearization circuitry, and a phase- alignment system. The phase-alignment system employs a new technique for offset-free ...
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PTS based MIMO-OFDM System using Space Frequency Block Coding Technique
... ABSTRACT: In this paper, the review of the multiple input multiple output using space time block code on WiMAX (IEEE 802.16) system. The Worldwide Interoperability for Microwaves Access technology which can offer high ...
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