Dielectric Resonator Antenna Mounted on a Circular Cylindrical Ground Plane

Abstract

Abstract-In this paper, the radiation characteristics of the singleelement cylindrical dielectric resonator antenna mounted on the surface of a metallic hollow circular cylindrical structure is investigated. The effect of the radius of curvature on the return loss, input impedance, standing wave ratio, and radiation pattern is explored. Mutual coupling between two identical cylindrical dielectric resonator antennas on a cylindrical structure in different configurations is determined. To reduce the mutual coupling between the two antennas, the surface of the cylinderical ground plane is defected by cutting slots, or inserting quarter wavelength grooves between the two antennas. The finite element method and the finite integration technique are used to calculate the radiation characteristics of the antenna.

B9. Dielectric resonator antenna array for direction finding systems

“…The dielectric resonator antenna (DRA) has many advantages including wide bandwidth and high radiation efficiency that are necessary for those applications [8]- [10]. The radiation characteristics of cylindrical DRA and hemispherical DRA placed on or embedded in superquadric cylindrical, circular cylindrical, and spherical ground planes are investigated in [11]- [13].…”

Dielectric Resonator Antenna Reflectarrays Mounted on or Embedded in Conformal Surfaces

“…Low profile printed antennas flush mounted on curved surfaces such as cylinders and spheres represents an important class of conformal arrays that have been used in radar and communication systems [10]. Cylindrical array antennas are mainly utilized when full azimuth scanning is required, however in many practical applications where a curved platform is available, such as missiles, ships and aircrafts, full azimuth scanning is not required [11,12]. For these applications, sector arrays, where the elements occupy a sector of subtended angle are appropriate [1].…”

B12. Dual polarized dual feed aperture-coupled DRA reflectarray

“…They find many applications in wireless communications such as cellular and satellite communications operating over a wide frequency band [11][12][13][14]. Reflectarray that uses a DRA as the radiating element has been developed [15][16][17][18][19].…”