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Frequency Bandwidth of Half-Wave Impedance Repeater [PDF]
Advances in Electrical and Electronic Engineering, 2012 This article brings in the second part general information about half-wave impedance repeater. The third part describes the basic functional principles of the half-wave impedance repeater using Smith chart.
Marek Dvorsky +2 more
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On the Bandwidth of High-Impedance Frequency Selective Surfaces [PDF]
IEEE Antennas and Wireless Propagation Letters, 2009 4 pages, 6 ...
Agostino Monorchio +2 more
exaly +4 more sources
Optimization of impedance bandwidth for the printed rectangular monopole antenna [PDF]
Microwave and Optical Technology Letters, 2005 This paper describes a printed rectangular-plate monopole fed by microstrip line. The effect of varying the plate width, feedgap height, and feedline width on the impedance bandwidth is examined. It is shown that for a fixed ground-plane size, that optimization of these parameters can yield an impedance bandwidth ratio of 4.3:1, without using any ...
John, Matthias, Ammann, Max
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Use of Negative Impedance Converters for Bandwidth Extension of Optical Transmitters [PDF]
IEEE Open Journal of Circuits and Systems, 2021 The design and advantages of a novel light emitting diode (LED) bandwidth extension technique, based on the adoption of negative impedance converters (NICs), are discussed in the context of visible light communication systems.
Amany Kassem, Izzat Darwazeh
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Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth
IEEE Access, 2022 An improved method of reducing the input impedance of a four-arm sinuous antenna is demonstrated for a wide gain bandwidth. The proposed antenna has a dual-linear polarized response for electronic support measures (ESM) systems and is designed with a ...
Donghyun Kim +4 more
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Development of a Wideband and High Gain ESIW H-plane Horn Antenna [PDF]
AUT Journal of Electrical Engineering, 2022 In this paper, a new structure of an Empty Substrate Integrated Waveguide (ESIW) H-plane Horn Antenna with improved gain and impedance bandwidth is introduced.
Seyd Hossein Haghirosadat +1 more
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Demonstration of Negative Impedance Conversion for Bandwidth Extension in VLC [PDF]
2020 IEEE International Symposium on Circuits and Systems (ISCAS), 2020 This work proposes and demonstrates the utility of a negative impedance converter (NIC) circuit, based on a common collector (CC) amplifier, for the generation of negative capacitance. The design principle of the proposed NIC is introduced, then a negative capacitance equals −200 pF is demonstrated using discrete devices constructed on a printed ...
Amany Kassem, Izzat Darwazeh
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Broadband Half Mode Substrate Integrated Waveguide H-plane Horn Antenna
Majlesi Journal of Electrical Engineering, 2023 A compact, wideband, low cost, high radiation efficiency and planar half mode substrate integrated waveguide (HMSIW) horn antenna is proposed in this work. For the first time, HMSIW is used to design a horn antenna.
Saeed Fakhte, Mohammadhossein Ashouri
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A Stacked Patch Antenna With Broadband Circular Polarization and Flat Gains
IEEE Access, 2021 In this paper, a stacked circular polarization (CP) patch antenna with broad impedance bandwidth, axial-ratio (AR) bandwidth, and flat gains is investigated.
Kang Ding +4 more
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BANDWIDTH BROADENING OF DIELECTRIC RESONATOR ANTENNA BY NON UNIFORM WIDTH [PDF]
مجله مدل سازی در مهندسی, 2010 In this paper a rectangular dielectric resonator antenna (DRA) fed by a microstrip line is studied. Therefore, at first radiation performance of DRA is studied, and the improvement techniques are reviewed.
پژمان Rezaei
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