Resonant Frequencies of Rectangular Dlekctric Resonators

Legier, Jean-François; Kennis, P.; Toutain, S.; Citerne, J.

doi:10.1109/tmtt.1980.1130216

Cited by 21 publications

(10 citation statements)

References 5 publications

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“…Dielectric resonators have been used as high Q element in microwave circuit applications following the development of low-loss ceramics in the late 1960s. The initial work on determining resonant frequencies of dielectric resonators greatly facilitated advancements in design of antennas using such resonators as antenna [6,7]. Many disadvantages of microstrip antenna do not appear in Dielectric Resonator Antennas (DRA), even at millimeter wave frequencies.…”

Section: Introductionmentioning

confidence: 99%

Dielectric Resonator Antennas: Designs and Advances

Soren¹,

Ghatak²,

Mishra³

et al. 2014

PIER B

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This article presents a comprehensive review of the research carried out on Dielectric Resonator Antennas (DRAs) over the last three decades. Dielectric resonator antennas (DRAs) have received increased attention in various applications due to their attractive features in terms of high radiation efficiency, light weight, small size and low profile. Over last decades, various bandwidth enhancement techniques have been developed for DRAs. In this article, the attention is focused on a type of DRAs that can offer multi-resonance frequencies and these frequencies can be merged into a broad band. In order to effectively review design techniques, DRAs in this article are categorized into three types, broadband, ultra-wideband (UWB) and multiband. The latest developments in DRAs are discussed in the limited scope of this article.

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Section: Introductionmentioning

confidence: 99%

Dielectric Resonator Antennas: Designs and Advances

Soren¹,

Ghatak²,

Mishra³

et al. 2014

PIER B

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“…The rectangular geometry offers further elasticity with respect to aspect ratios and bandwidth management [18]. A dielectric waveguide model was employed to investigate the rectangular DRA [19]. Once the DRA is placed on the bottom plane, the TE modes are triggered.…”

Section: Rectangular Dielectric Resonatormentioning

confidence: 99%

A Compact Sequentially Rotated Circularly Polarized Dielectric Resonator Antenna Array

2021

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In this study, a compact 2 × 2 circularly polarized (CP) sequentially rotated (SR) dielectric resonator antenna (DRA) array operating in the IEEE 802.11a band is presented. To acquire the CP radiation, an elliptical slot (ES) was introduced to couple a rectangular dielectric resonator (RDR). The ES generates two resonant frequencies corresponding to the dominant even and odd modes. The SR feeder is made of four quarter-wavelength microstrip transformers to reduce the input impedance of the elements and, consequently, maximize the power transferred to each element. Experimental and simulation verifications were conducted on a 54 × 50 × 0.813 mm3 prototype to evaluate the performance of the proposed antenna array, which achieved a VSWR < −10 dB bandwidth of 1 GHz (5.1–6.05 GHz) and axial ratio (AR) < 3 dB of 0.95 GHz (5.1–5.85 GHz). The agreement between the simulated and measured results confirmed the validity of the proposed design.

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“…For a dielectric waveguide of square cross-section and side 2A, the expression for the equivalent diameter D of a cylindrical dielectric waveguide having the same propagation constant is given by D = 2.16A [2]. For the hybrid E modes we have modified [3] a design procedure for isolated rectangular dielectric resonators [4] to include the case of a resonator on a dielectric substrate which has a metallised ground plane and a metal cover.…”

Section: Resonator Modesmentioning

confidence: 99%