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Wideband dielectric resonator antenna
Microwave and Optical Technology Letters, 2005AbstractThis paper presents a new wideband dielectric resonator (DR) antenna. To enhance the bandwidth, two layers of stacked resonators having the same rotational axis of symmetry are used. At the bottom layer, a smaller cylindrical DR is placed concentrically inside a large annular‐ring DR, whereas at the top layer, there is only one cylindrical DR ...
Yu‐Feng Ruan +2 more
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Adaptive Dielectric Resonator Antenna
2007 Loughborough Antennas and Propagation Conference, 2007A new class of hemispherical dielectric resonator antenna using mixed dielectric with beam agility is presented. The design of the antenna was optimized by extensive numerical simulations with the HFSS, Ansoft package. The antenna resonates at 5.6 GHz, with a diameter of 26 mm and Sn of -15 dB.
H. Fayad, P. Record
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Bidirectional dielectric resonator antenna
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015A bidirectional dielectric resonator antenna (DRA) is investigated. The rectangular DRA is used, which resonates in its TE 215 y mode. As a demonstration, it is designed to operate at 5.80 GHz for WLAN applications. Its reflection coefficient, radiation pattern, and antenna gain of the bidirectional DRA were simulated and measured.
Li Ying Feng, Kwok Wa Leung
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Optical dielectric resonator antenna
2012 9th International Conference on Communications (COMM), 2012In this paper we propose that a dielectric dot on the top of a ground plane could act as an antenna in optical frequency range. We investigate its electromagnetic properties numerically and observe that its behaviors are similar to dielectric resonator antenna in radio frequency.
Abhinav Bhardwaj, V. Dinesh Kumar
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Supershaped dielectric resonator antennas
2009 IEEE Antennas and Propagation Society International Symposium, 2009A family of dielectric resonator antennas, the supershaped DRAs, has been introduced in this communication. These DRAs exhibit wideband matching characteristics and broadside radiation. The cross section of the supershaped DRAs was described by means of a simple analytical expression depending on a set of six real parameters.
M. Simeoni +3 more
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2004 14th International Crimean Conference "Microwave and Telecommunication Technology" (IEEE Cat. No.04EX843), 2004
The problem of scattering electromagnetic waves from a radiating aperture by a system of high-Q dielectric resonators (DR) in free space is considered. General expressions are presented for calculating both the amplitudes of coupled oscillations and also the scattered field in the wave zone of the resonator system.
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The problem of scattering electromagnetic waves from a radiating aperture by a system of high-Q dielectric resonators (DR) in free space is considered. General expressions are presented for calculating both the amplitudes of coupled oscillations and also the scattered field in the wave zone of the resonator system.
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A dual‐frequency dielectric resonator antenna
Microwave and Optical Technology Letters, 2003AbstractA dual‐frequency cylindrical dielectric resonator antenna is presented. This paper proposes a configuration in which the shape and volume of the radiating structure remain unchanged. The behaviour of this antenna after altering some of its attributes is investigated. © 2003 Wiley Periodicals, Inc.
Nannini, C. +3 more
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The dielectric resonator antenna
1985 Tenth International Conference on Infrared and Millimeter Waves, 1985There is, today, strong interest on the part of both military and commercial users, in antenna systems which can operate efficiently in the millimeter wave region (100–300 GHz) and above. Reducing the size of currently-used microwave frequency antennas to obtain higher resonant frequencies will usually be unsuccessful, either because the small size ...
Stuart A. Long, Mark W. McAllister
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Numerical analysis of dielectric resonator antennas
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2000A numerical analysis of various dielectric resonator antennas (DRAs): simple (singleelement) and complex shape configurations (stacked and embedded resonators) withdifferent excitations (dipole, coaxial probe, slot‐coupled microstrip line) using a time‐harmonic surface finite element method (SFEM) is presented.
Sangiovanni, A. +3 more
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30°-60°-90° Triangular Dielectric Resonator Antenna: A new shaped Dielectric Resonator Antenna
2016 IEEE 7th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON), 201630°-60°-90° triangular shaped Dielectric Resonator Antenna (DRA) is investigated here. The DRA is formed by cutting the equilateral Triangular DRA (TDRA) along its median. Fundamental mode is excited for both antennas. A comparative study between input impedance, S 11 and far-field power patterns are presented.
null Prerna +7 more
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