Topic
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 published on a yearly basis
Papers
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TL;DR: In this paper, a cylindrical dielectric resonator antenna (DRA) was proposed for millimeter-wave (mm-wave) on-chip systems, which was fabricated from a single high-resistivity silicon wafer via micromachining technology.
Abstract: This paper presents a novel cylindrical dielectric resonator antenna (DRA) suitable for millimeter-wave (mm-wave) on-chip systems. The antenna was fabricated from a single high-resistivity silicon wafer via micromachining technology. The new antenna was characterized using HFSS and experimentally with good agreement been found between the simulations and experiment. The proposed DRA has good radiation characteristics, where its gain and radiation efficiency are 7 dBi and 79.35%, respectively. These properties are reasonably constant over the working frequency bandwidth of the antenna. The return loss bandwidth was 2.23 GHz, which corresponds to 3.78% around 60 GHz. The antenna was primarily a broadside radiator with $-15\hbox{-dB}$ cross-polarization level.
40 citations
Patent•
30 Oct 2003
TL;DR: In this paper, a ladder type filter with a parallel resonator and a series resonator was proposed, where the anti-resonant point of the series and the resonant point on the lower frequency side of the first inductor were observed to coincide with each other.
Abstract: In a ladder type filter, a first inductor is connected in series with a parallel resonator. A second inductor is connected in parallel to a series resonator. The resonant point of the parallel resonator having the first inductor connected in series and the anti-resonant point of the series resonator developed on the lower frequency side of the resonant point of the series resonator, caused by the second inductor connected in parallel, substantially coincide with each other.
40 citations
TL;DR: In this article, the authors investigated the cross-polarized (XP) radiation of cylindrical dielectric resonator antenna (CDRA) with a view to identify the source of the same.
Abstract: In this communication, cross-polarized (XP) radiation of cylindrical dielectric resonator antenna (CDRA) has been investigated with a view to identify the source of the same. The study starts with a conjecture, which has been established through a systematic study using simulated results. The inference has been verified experimentally with the help of a set of prototypes. ${\rm{HEM}_{21\delta }}$ has been identified as the XP generating mode and a small metallic grounded post of circular cross section has been conceived to perturb the same to prove the conjecture. This insight has been extended to demonstrate a practical application indicating a possibility of achieving up to 8–10-dB suppression in XP radiation from a CDRA.
40 citations
Patent•
14 Jan 1977
TL;DR: In this paper, a condenser consisting of two disks 3, 4 made of a dielectric material and separated by a removable ring determines the spacing between the disks 3 and 4.
Abstract: Quartz resonator with electrodes that do not adhere to the crystal. Quartz resonator having improved medium-term and long-term stabilities and permitting easier placing on frequency. The resonator comprises, inside a tight housing 1, a condenser formed by two disks 3, 4 made of a dielectric material and separated by a removable ring 2 which determines the spacing between the disks 3 and 4. Electrodes are formed by metallization on the faces of the disks 3 and 4 located opposite a quartz crystal 1 enclosed in said condenser. The spacings between the crystal 1 and the disks 3 and 4 are considerably less than 1 millimeter. Application, for example, in the fields of telecommunications and radars.
39 citations
TL;DR: In this paper, a new dielectric resonator antenna (DRA) with reduced size for WLAN applications is presented, which is coupled to a microstrip line through a rectangular aperture in the ground plane.
Abstract: A new dielectric resonator antenna (DRA) with reduced size for WLAN applications is presented. The proposed antenna consists of a rectangular dielectric resonator with partial vertical and horizontal metallisations which is coupled to a microstrip line through a rectangular aperture in the ground plane. A 9.6 reduction coefficient is obtained compared to the volume of an equivalent isolated DRA. An experimental 12% bandwidth is also achieved in spite of the compact size.
39 citations