Results 261 to 270 of about 760,205 (338)
Some of the next articles are maybe not open access.
Linearly and Circularly Polarized Filtering Dielectric Resonator Antennas
IEEE Transactions on Antennas and Propagation, 2019In this paper, linearly polarized (LP) and circularly polarized (CP) filtering dielectric resonator antennas (DRAs) are presented. They have conducting loops inside them.
Yan-Ting Liu +3 more
semanticscholar +1 more source
Journal of Applied Physics, 1939
We show that suitably shaped objects made of a dielectric material can function as electrical resonators for high frequency oscillations. We develop the theory of such resonators very briefly and compute their resonant frequencies and losses in some very simple cases. The paper concludes with an observation on the behavior of dielectric wave guides.
openaire +1 more source
We show that suitably shaped objects made of a dielectric material can function as electrical resonators for high frequency oscillations. We develop the theory of such resonators very briefly and compute their resonant frequencies and losses in some very simple cases. The paper concludes with an observation on the behavior of dielectric wave guides.
openaire +1 more source
A Compact Quasi-Isotropic Dielectric Resonator Antenna With Filtering Response
IEEE Transactions on Antennas and Propagation, 2019A compact quasi-isotropic dielectric resonator (DR) antenna (DRA) with filtering response is first investigated in this communication. The cylindrical DRA is fed by a microstrip-coupled slot, exciting in its ${\text {HEM}}_{11 \delta }$ mode which ...
P. Hu, Y. Pan, Xiu Yin Zhang, Binjie Hu
semanticscholar +1 more source
, 2020
In this communication, dielectric resonator based two-port Multi Input Multi Output (MIMO) antenna is structured and examined. L-shaped microstrip line with a serial step impedance transformer is used to excite moon-shaped aperture, which in turn ...
G. Bharti +3 more
semanticscholar +1 more source
In this communication, dielectric resonator based two-port Multi Input Multi Output (MIMO) antenna is structured and examined. L-shaped microstrip line with a serial step impedance transformer is used to excite moon-shaped aperture, which in turn ...
G. Bharti +3 more
semanticscholar +1 more source
IEEE Transactions on Microwave Theory and Techniques, 2005
This paper discusses the possibility of constructing a resonant element from dielectric material shaped into a helix. The modeling conducted shows that the mode associated with ceramic quarter-wave resonators is present within a coiled dielectric helix, the properties of which are strongly dependent upon the pitch and the thickness of the coils.
J.E. Holmes +3 more
openaire +1 more source
This paper discusses the possibility of constructing a resonant element from dielectric material shaped into a helix. The modeling conducted shows that the mode associated with ceramic quarter-wave resonators is present within a coiled dielectric helix, the properties of which are strongly dependent upon the pitch and the thickness of the coils.
J.E. Holmes +3 more
openaire +1 more source
IEEE Transactions on Antennas and Propagation, 2019
For the first time, a pattern-diversity cylindrical dielectric resonator (DR) antenna (DRA) is designed using the fundamental HEM $_{11\delta }$ and TM $_{01\delta }$ modes of the HEM and TM mode families, respectively. It makes use of the fact that at
N. Yang, K. Leung, Nan Wu
semanticscholar +1 more source
For the first time, a pattern-diversity cylindrical dielectric resonator (DR) antenna (DRA) is designed using the fundamental HEM $_{11\delta }$ and TM $_{01\delta }$ modes of the HEM and TM mode families, respectively. It makes use of the fact that at
N. Yang, K. Leung, Nan Wu
semanticscholar +1 more source
3-D-Printed Wideband Multi-Ring Dielectric Resonator Antenna
IEEE Antennas and Wireless Propagation Letters, 2019A three-dimensional (3-D)-printed wideband multi-ring dielectric resonator antenna (DRA) is investigated for the first time. It consists of four concentric dielectric rings with decreasing effective dielectric constants in the radial direction.
Zhen-Xing Xia, K. Leung, Kai Lu
semanticscholar +1 more source
Nanoscale TiO_2 dielectric resonator absorbers
Optics Letters, 2016We demonstrate a narrow-band plasmonic absorber based on a uniform array of nanoscale cylindrical dielectric resonators (DRs) on a metallic substrate at visible frequencies. Under a normally incident plane-wave excitation, the DRs resonate in their horizontal magnetic dipolar mode, which can be seen as localized plasmonic hot spots.
Chengjun, Zou +6 more
openaire +2 more sources
IEEE Transactions on Antennas and Propagation, 2019
A circularly polarized (CP) dielectric resonator antenna (DRA) with wide bandwidth and low axial ratio (AR) values is presented in this communication. The antenna consists of a stacked DRA, and it is fed by a substrate integrated waveguide coupling slot ...
Wenwen Yang +3 more
semanticscholar +1 more source
A circularly polarized (CP) dielectric resonator antenna (DRA) with wide bandwidth and low axial ratio (AR) values is presented in this communication. The antenna consists of a stacked DRA, and it is fed by a substrate integrated waveguide coupling slot ...
Wenwen Yang +3 more
semanticscholar +1 more source
Cylindrical Dielectric Resonator Antenna Sensor for Non-Invasive Glucose Sensing Application
SPIN, 2019A compact cylindrical dielectric resonator antenna is presented for non-invasive glucose sensing. The proposed antenna sensor consists of an Alumina ceramic dielectric resonator fed by a $50\ \mathbf{\Omega}$ microstrip line. For sensing the glucose, the
M. N. Hasan +4 more
semanticscholar +1 more source