[PDF] Top 20 Wave Propagation in a Helical Waveguide with Slab and Rectangular Dielectric Profiles, and Applications

... curved waveguide is not a small perturbation of a mode on the straight guide, but was guided essentially by the outer ...hollow dielectric or imperfect metallic waveguides, a sort of composite of open and ... See full document

... toroidal waveguide [18] (approximately a plane curve) with two bendings to a helical waveguide (a space curved waveguide for an arbitrary value of the step’s angle of the helix) with two ... See full document

... in waveguide walls are widely used as antenna radiators or coupling elements between adjacent electrodynamic volumes of microwave devices with specified electrodynamic ...a wave transmitted through the slot, ... See full document

... the dielectric guides by demagnetizing ferrite, then to the case of the guide charged with longitudinally magnetized ferrite by following Galerkin’s ...of propagation is obtained through 15 ... See full document

... plane-wave propagation exhibited by the negative refraction media in which permittivity and permeability are both ...many applications, such as a thin sub wavelength cavity resonators contained with ... See full document

... of dielectric properties required in many areas of geophysical prospecting and subsurface imaging, where it helps in the geological investigation of different kinds of rocks and soils ...of applications in ... See full document

... millimeter wave frequencies due to their lower propagation loss, lower cost and easier fabrication (Lioubtchenko et ...2003). Rectangular dielectric waveguides form a large proportion of these ... See full document

... transverse dielectric profile and those of the input wave ...of dielectric waveguides in the microwave and the millimeter- wave regimes, for diffused optical waveguides in integrated ...the ... See full document

... incorporating dielectric resonators are widely used in mobile base stations and other demanding ...resonators. Dielectric filter cavities may be analyzed using the methods developed by Zaki and ...The ... See full document

... Abstract—Dipole antennas on a substrate without a ground plane are common in wireless sensor networks and RFID applications. This paper reviews a number of theoretical approaches to solving for the effective ... See full document

... In the design of these filters, manufacturers are using software packages employing finite element or finite difference time domain techniques. However, for sufficient accuracy these procedures require large numbers of ... See full document

... a rectangular dielectric waveguide (RDWG) tech- nique [6]–[8] has been proposed in conjunction with a TRL cal- ibration technique [9], [10] to determine the dielectric constant of materials of ... See full document

... The effective way of enhancing the gain of any antenna is to deploy stacked structure design instead of single structure design [22-24]. Number of shapes of DRAs are available but the rectangular shaped DRA have ... See full document

... a rectangular wave ...a rectangular waveguide have been investigated by several researchers[ Elliot et ...in rectangular waveguides are ...plate waveguide filled with a truncated ... See full document

... coplanar waveguide, microstrip line or dielectric image guide (DIG) have all been used [2], [8], ...the dielectric guide and the ground plane, namely employing dielectric insular image guide ... See full document

... a rectangular dielectric waveguide. However, for rectangular dielectric waveguide there are two well-known approximate ... See full document

... where d is the distance of travel. Based on the phase variation measurements of the 16-kHz transmissions from Rugby made at Visakhapatnam over a period of nearly 2 years, the average diurnal change in transmission time ... See full document

... effective wave index    n i  as a function of the angular frequency  in the allowed frequency spectrum for different dielectric constants, for dielectric film thicknesses  a  5,075 ... See full document

... 1 and port 2, the output at E-arm is subtractive [3], [4]. On the other hand, when wave signal is fed in E-arm, it divides equally and the phase difference between the output signals at both collinear ports is 180 ... See full document

... metro applications to carry, at the same time, with dif- ferent priorities, data related to control-command and train operation and ...magnetic propagation in tunnels for radio planning and network ... See full document