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Dielectric resonator antenna

About: Dielectric resonator antenna is a research topic. Over the lifetime, 8199 publications have been published within this topic receiving 111090 citations. The topic is also known as: DRA.


Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, an L-shaped microstrip monopole is proposed as both a radiator and a feeding structure for dielectric ring resonator antennas, with 2:1 VSWR bandwidth greater than 25% at 5.5 GHz.
Abstract: A novel feeding technique for dielectric ring resonator antennas, with 2:1 VSWR bandwidth greater than 25% at 5.5 GHz, covering the WLAN upper band is reported in this letter. In order to achieve this wideband characteristic, an L-shaped microstrip monopole is proposed, as both a radiator and a feeding structure. The principle of the wideband characteristics is investigated, with both measured and simulated results of the antenna presented.

30 citations

Patent
01 Nov 2000
TL;DR: In this paper, a ring resonator is described, which is an integrated micromechanical ring oscillator supported above a substrate and adapted to oscillate around an axis of rotation substantially perpendicular to the substrate.
Abstract: There is described a time base comprising a resonator (4) and an integrated electronic circuit (3) for driving the resonator into oscillation and for producing, in response to this oscillation, a signal having a determined frequency. The resonator is an integrated micromechanical ring resonator (4) supported above a substrate (2) and adapted to oscillate around an axis of rotation (O) substantially perpendicular to the substrate. The ring resonator comprises a central post (5) extending from the substrate along the axis of rotation, and a free-standing oscillating structure (6) including an outer ring (60) coaxial with the axis of rotation, and a plurality of spring elements (62) disposed symmetrically around the central post and connecting the outer ring to the central post.

30 citations

Journal ArticleDOI
Tong Changwu1, Hui Tang1, Jiang Li1, Wen-Wen Yang1, Jian-Xin Chen1 
TL;DR: In this article, a differentially coplanar-fed filtering dielectric resonator antenna (DRA) is proposed for millimeter-wave applications, which can be manufactured with a single-layer laminate using standard printed circuit board technology.
Abstract: In this letter, a differentially coplanar-fed filtering dielectric resonator antenna (DRA) is proposed for millimeter-wave applications. To realize a low-profile design, a novel coplanar feeding method is presented by incorporating a dielectric resonator and its feeding structure in the same layer, which minimizes the assembly errors. The DRA is shaped by hollowing out the substrate and can be manufactured with a single-layer laminate using standard printed circuit board technology. The DRA operates at TE111 mode that is excited differentially by a pair of microstrip lines with metallic vias. The filtering function is obtained by etching two pairs of slots with different lengths in the ground plane, resulting in two radiation nulls at both upper and lower band edges. For demonstration, a prototype is designed, fabricated, and measured. Good agreement can be observed between simulated and measured results.

30 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated the return loss, axial ratio, radiation pattern, and antenna gain of the circularly polarized slot-coupled cylindrical dielectric resonator antenna with a parasitic patch.
Abstract: The circularly polarized slot-coupled cylindrical dielectric resonator antenna with a parasitic patch is investigated experimentally. The return loss, axial ratio, radiation pattern, and antenna gain of the antenna are studied and the effects of varying the parasitic patch are discussed.

30 citations

Patent
18 Apr 2005
TL;DR: In this article, a two-stage resonator filter is fabricated over a substrate with a cavity and a second stage with a decoupling layer between the first and second stages.
Abstract: An apparatus includes a substrate with a cavity and a two-stage resonator filter fabricated over the cavity. The two-stage resonator filter includes a first stage and a second stage. The first stage includes a first resonator and a second resonator, the second resonator acoustically coupled to the first resonator. The second stage includes a third resonator and a fourth resonator, the fourth resonator acoustically coupled to the third resonator. The second resonator and the third resonators are electrically coupled. A decoupling layer couples the first resonator and the second resonator. The decoupling layer extends between the third resonator and the fourth resonator. The first resonator and the fourth resonator are above the substrate. The decoupling layer is above the first resonator and the fourth resonator. The second resonator and the third resonators are above the decoupling layer.

30 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023101
2022273
2021181
2020224
2019254
2018247