Dual-Function Radiating Glass for Antennas and Light Covers—Part I: Omnidirectional Glass Dielectric Resonator Antennas

Leung, Kwok Wa; Pan, Yongmei; Fang, Xiao Sheng; Lim, Eng-Hock; Luk, Kwai Man; Chan, Hau Ping

doi:10.1109/tap.2012.2216495

Cited by 64 publications

(32 citation statements)

References 29 publications

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“…These shapes of DR are modified and achieved better CP bandwidth such as glass DR, deformed rectangular DR, rotated stacked rectangular DR, spidron fractal DR, and semi‐eccentric annular DR . It is also reported that modified single feeding technique has utilized for the generation of better CP bandwidths like the modified shape of microstrip feed with modified slot has been reported in Ref.…”

Section: Introductionmentioning

confidence: 95%

Compact asymmetric cross‐shaped rectangular dielectric resonator antenna for wideband circular polarization

Kumar

Chaudhary

2019

Micro & Optical Tech Letters

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A compact asymmetric cross‐shaped dielectric resonator (DR) antenna with broadside wideband circularly polarized has been investigated by using the coaxial probe feeding technique. The presented antenna consists of the asymmetric cross‐shaped DR, a metal strip, and a coaxial feed. Here, the metal strip is used at the corner of the cross‐shaped DR to reduce the excessive tangential electric field and acts as a mirror for the normal filed components. Therefore, the orthogonal modes TExδ11 and TEy1δ1 are excited at resonance frequencies of 4.55 GHz and 5.55 GHz in this antenna structure, and because of these modes, the proposed antenna is able to produce CP fields. The antenna with −10 dB impedance bandwidth provides the measured results of 43.84%, whereas the measured 3‐dB axial ratio bandwidth is found to be 11.23%. Moreover, the proposed antenna shows low profile geometry, that is, 0.175λ0, where λ0 is the wavelength at the central frequency.

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Section: Introductionmentioning

confidence: 95%

Compact asymmetric cross‐shaped rectangular dielectric resonator antenna for wideband circular polarization

Kumar

Chaudhary

2019

Micro & Optical Tech Letters

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“…Table provides the technical performance comparison between the proposed antenna and previously published related antenna structures in the literature at around 2.4 GHz band applications. It is observed that the proposed antenna has good performances in terms of the antenna complexity, size, polarization, impedance bandwidth, and ARBW.…”

Section: Resultsmentioning

confidence: 99%

Wideband circularly polarized hybrid dielectric resonator antenna with bi‐directional radiation characteristics for various wireless applications

Kumar

Nasimuddin

Chaudhary

2019

Int J RF Microw Comput Aided Eng

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In this article, a wideband circularly polarized (CP) dielectric resonator (DR) over an asymmetric‐slot radiator based hybrid‐DR antenna is proposed with bi‐directional radiation characteristics. Bi‐directional CP radiation of the dual sense is obtained using a rectangular‐DR over asymmetric‐rectangular‐slot radiator with L‐shaped feed line. The asymmetric‐slot radiator feed by L‐shaped stub with the coplanar waveguide is used for generating two orthogonal modes, namely TE x δ11 and TEy1δ1 in the combined (rectangular‐DR and asymmetric‐slot radiator) hybrid‐DR antenna, which is verified by the distribution of electric field inside the rectangular DRA. The measured reflection coefficient bandwidth (S11 < −10 dB) and axial ratio (AR) bandwidth (AR < 3 dB) of the hybrid‐DR antenna are 80.5% (1.87‐4.39 GHz) and 43.8% (1.75‐2.73 GHz), respectively. The antenna radiation is in the broadside (θ = 0°, ϕ = 0°) direction as well as in the backside (θ = 180°, φ = 0°) direction with equal magnitudes in both the directions. Right‐handed and left‐handed CP waves are achieved respectively, in the boresight (+Z) and the backside (−Z) directions. The proposed CP hybrid‐DR antenna gives an average gain of 3.55 dBic and radiation efficiency of 95.0% in both directions. The proposed antenna covers various wireless useful bands such as ISM 2400 band, Wi‐Fi, Bluetooth, and Wi‐MAX (2.5‐2.7 GHz).

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“…DRAs have also been developed at CRC for different operating band between 1 GHz‐to‐40 GHz for PCS applications by Cuhaci et al Leung et al have modeled dual purpose glass DRA for operating as a wireless video system at 2.4 GHz as well as a lighting lamp. Lee et al have studied a small DRA using aperture coupling.…”

Section: Technology Based Applicationsmentioning

confidence: 99%

“…But the DR-antennas dedicated for specific technology like: WLAN, Wi-Fi, Bluetooth, etc., gives the glimpse of null modification as they must have been satisfying the requisite characteristics. The outcome of this survey article may be summarized as follows: (i) highlights the novelty of DRAs in terms of different commercial and defense applications, (ii) may help the antenna industries/manufacturers to choose the right one for any specific application as per their requirement, and (iii) Ku-Band [35][36][37][38] Mobile Devices [148][149][150][151][152][153][154][155][156][157] Beam scanning 213,214 Ka-Band 39 Optical & ISM [106][107][108] Radar/DOA [158][159][160][161][162][163] Dual and Triple Band [72][73][74][75][76][77][78][79][80][81][82][83] Low Operating Freq. 180 Oscillator/Adaptive/ Others [220][221][222][223][224]…”

Section: S U M M a R Y O F T H E S U R V E Ymentioning

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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Dual-Function Radiating Glass for Antennas and Light Covers—Part I: Omnidirectional Glass Dielectric Resonator Antennas

Cited by 64 publications

References 29 publications

Compact asymmetric cross‐shaped rectangular dielectric resonator antenna for wideband circular polarization

Compact asymmetric cross‐shaped rectangular dielectric resonator antenna for wideband circular polarization

Wideband circularly polarized hybrid dielectric resonator antenna with bi‐directional radiation characteristics for various wireless applications

Dielectric resonator antennas: An application oriented survey

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