Wideband mm-Wave Hemispherical Dielectric Resonator Antenna with Simple Alignment and Assembly Procedures
TLDR
In this paper , a wideband hemispherical dielectric resonator antenna (DRA) with enhanced gain was proposed for a frequency band of 20 to 28 GHz, and the precise alignment and assembly of the DRA represent key challenges at such frequencies that were addressed using three approaches: the first was based on outlining the DSA position on the ground plane, the second involved creating a groove in the compound ground plane in which the DCA is placed, and third was based upon the 3D-printing of the antenna on a perforated substrate.Abstract:
A wideband hemispherical dielectric resonator antenna (DRA) with enhanced gain is proposed for a frequency band of 20 to 28 GHz. The precise alignment and assembly of the DRA represent key challenges at such frequencies that were addressed using three approaches: the first was based on outlining the DRA position on the ground plane, the second involved creating a groove in the compound ground plane in which the DRA is placed, and the third was based on the 3D-printing of the DRA on a perforated substrate. In all cases, the same DRA was utilized and excited in a higher-order mode using an annular ring slot. The high gain was achieved by exciting a higher-order mode, and the wideband was obtained by merging the bandwidths of the two excited modes. The alignment methods used expedite the DRA prototyping by saving substantial time that is usually spent in adjusting the DRA position with respect to the feeding slot. The proposed configurations were measured, with an impedance bandwidth of 33.33% and a maximum gain of 10 dBi observed. Close agreement was achieved between the measured and simulated results.read more
Citations
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Design of high-gain wideband substrate integrated waveguide dielectric resonator antenna for D-band applications
TL;DR: In this paper , the authors proposed a wideband substrate integrated waveguide (SIW) fed dielectric resonator antenna (DRA) for D-band applications, which achieved high gain and wideband antennas for mobile equipment to support high-speed communications in the millimeter wave and terahertz (THz) frequencies.
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A Review of Dielectric Resonator Antenna at Mm-Wave Band
TL;DR: In this paper , a comprehensive review of the recent literature studies on the developments and applications of millimeter-wave (mm-wave) dielectric resonator antennas (DRAs) is presented.
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Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna
TL;DR: In this paper , a hemispherical dielectric resonator antenna (DRA) with a wide axial ratio (AR) bandwidth was designed by incorporating an additional perforated substrate between the antenna and the ground plane.
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Glueless Multiple Input Multiple Output Dielectric Resonator Antenna with Improved Isolation
TL;DR: In this paper , a glueless compact dual-port dielectric resonator antenna (DRA) is proposed for X-band applications, where four cylindrical copper rods with four strips are used to fix the DRA on the substrate and provide additional mechanical stability.
Millimeter Wave Dielectric Resonator Antenna for Off-Body Communications with Grooved GP
Tarek S. Abdou,Salam K. Khamas +1 more
TL;DR: In this article , a low profile circularly polarized (CP) dielectric resonator antenna (DRA) is proposed for off-body communications and the challenge of achieving a precise DRA-feed alignment has been addressed by incorporating a second ground plane with a groove, in which the DRA is placed.
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