A Novel Cup-Shaped Inverted Hemispherical Dielectric Resonator Antenna for Wideband Applications

Mukherjee, Biswajeet; Patel, Pragati; Mukherjee, Jayanta

doi:10.1109/lawp.2013.2283213

Cited by 29 publications

(15 citation statements)

References 9 publications

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“…Reducing the contact of dielectric resonator (DR) with respect to the ground plane also improves the impedance bandwidth. This has been successfully demonstrated with Inverted hemispherical DRA, Tetrahedron and conical DRA [6]- [8].…”

Section: Introductionmentioning

confidence: 92%

“…In CDRA the entire base touches the ground plane, while in LCDRA the tangent of the lateral side of resonator touches the ground plane, which decreases the total surface area of the DRA with respect to the ground plane. Hence more current gets coupled to the DRA, thus increasing the radiation losses and hence improving the impedance bandwidth [6]. LCDRA has a lower resonant frequency than CDRA.…”

Section: Antenna Configurationmentioning

confidence: 99%

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Laterally Placed CDRA with Triangular Notches for Ultra Wideband Applications

2017

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In this paper, a Coaxial probe-fed Laterally placed Cylindrical Dielectric Resonator Antenna (LCDRA) with symmetrical triangular notches is presented. The lateral surface of the Cylindrical Dielectric Resonator Antenna (CDRA) is kept on the ground plane with its longitudinal axis parallel to the ground plane. LCDRA has a lower resonant frequency than the CDRA and it offers considerably wider impedance bandwidth than CDRA. Finally, two symmetrical triangular notches are introduced on the two edges of LCDRA which is perpendicular to the axis to further improve the impedance bandwidth. The proposed antenna offers a wide impedance bandwidth (S 11 <-10 dB) of 76.7 % (4.5-10.1 GHz). The radiation pattern of the proposed antenna is stable and broadside throughout the impedance bandwidth of operation. The prototype of the proposed antenna is fabricated and measured results are found to be in good agreement with the simulated one.

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Section: Introductionmentioning

confidence: 92%

Section: Antenna Configurationmentioning

confidence: 99%

Laterally Placed CDRA with Triangular Notches for Ultra Wideband Applications

2017

Self Cite

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“…After this, again Chaudhary et al have developed a two layered half‐split cylinder shaped DRA in an embedded form operating in 5.55 GHz‐to‐12.08 GHz range for wideband applications. Mukherjee et al have investigated a hemispherical (cup shaped) DRA for wideband application over 83% bandwidth centered at 2.3 GHz. Panigrahi et al, have removed the central portion of a DRA and used U‐shaped feeding mechanism for covering 46.7% wideband, that is, 3.9 GHz‐to‐6.20 GHz.…”

Section: Dras Applications Based On Microwave Bandsmentioning

confidence: 99%

Dielectric resonator antennas: An application oriented survey

Dash

Khan

Де

2016

Int. J. RF Microw. Comput. Aided Eng.

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This survey article outlines a comprehensive investigation of research carried out on dielectric resonator antennas (DRAs) in the last three and half decades, in an application‐oriented approach. DRAs have created a remarkable position in antenna engineering for their adept characteristics like high efficiency, low loss, wide bandwidth, compact size, 3‐dimensional modeling flexibility, etc. The use of DRAs for different commercial and defense applications associated with the wireless communication is highlighted in this article. To make a smooth and effective survey article, all the application‐oriented DRAs available in the open literature are classified in five different categories like microwave bands, specific frequency, technology, millimeter‐wave, and miscellaneous types. The ultimate aims of this review article are as follows: (i) highlights the usability of DRAs for different commercial and defense applications, (ii) helpful for the antenna industries/manufacturers to find out the best DRA for any specific application as per their requirement, and (iii) points out research gap in some application domains which will be quite helpful for future antenna researchers. In the authors' opinion, this survey may be helpful to DRA researchers as such a survey process is not available in the open literature.

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“…Antennas are considered as the fundamental part of a microwave systems . The dielectric resonator antennas (DRAs) have become quite popular in recent past because of their attractive features like that of low‐loss, high radiation efficiency, flexible fed‐arrangements, and low temperature coefficient . Moreover, DRAs have an advantage of miniaturized size and light‐weight, which is a plus as far as integrated low‐profile or portable wireless systems are concerned .…”

Section: Introductionmentioning

confidence: 99%

Wide-band dielectric resonator antenna using K-shaped fractal

Nawaz

Abbasi

2016

Microw. Opt. Technol. Lett.

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A K‐shaped fractal dielectric resonator antenna with CPW feed is proposed. Self‐repetition property of fractal configuration has been utilized to bring higher order modes together to achieve wide percentage bandwidth. Antenna is simulated and optimized using high‐frequency structure simulator (HFSS) and fabricated using Roger RO4350b as substrate and Roger RT/duroid 6010 as dielectric resonator. The overall antenna size is 42 × 54 × 6.524 mm3. Resonant frequency behavior of the fractal iterations leading to wide band operation is presented to provide insight to the design and functionality of K‐shaped resonator. Proposed antenna possesses wide percentage bandwidth of 90.65% from 3.8 to 10.1 GHz, high radiation efficiency that is >92% and appropriate gain, making it potential choice for wide‐band wireless applications. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1504–1507, 2016

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A Novel Cup-Shaped Inverted Hemispherical Dielectric Resonator Antenna for Wideband Applications

Cited by 29 publications

References 9 publications

Laterally Placed CDRA with Triangular Notches for Ultra Wideband Applications

Laterally Placed CDRA with Triangular Notches for Ultra Wideband Applications

Dielectric resonator antennas: An application oriented survey

Wide-band dielectric resonator antenna using K-shaped fractal

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