Frequency-Tunable Differentially Fed Rectangular Dielectric Resonator Antennas

Hao, Chunxiao; Li, Baichang; Leung, Kwok Wa; Sheng, Xin‐Qing

doi:10.1109/lawp.2011.2165929

Cited by 54 publications

(23 citation statements)

References 17 publications

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“…Thus, the extensive efforts and numerous investigations on tunable frequency antennas have been studied [8][9][10]. Some designs of reconfigurable DRAs using several frequency-tuning techniques have been reported in the current literature [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

A Compact Frequency-Reconfigurable Dielectric Resonator Antenna for LTE/WWAN and WLAN Applications

Danesh

Rahim

Abedian

et al. 2015

Antennas Wirel. Propag. Lett.

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A compact frequency reconfigurable dielectric resonator antenna (DRA) for LTE/WWAN and WLAN applications is investigated and presented. The proposed antenna provides the frequency tuning between 1.60 GHz and 2.71 GHz. The design consists of four identical rectangular dielectric resonators with permittivity of 10 each and three PIN diode switches which are located on the feed line network between each two dielectric resonators. The proposed antenna size is 20 × 36 × 5.57 mm3 that is suitable for mobile devices. The measurement and simulation results are applied to demonstrate the performance of the proposed antenna. From the measured results, it is found that the proposed antenna with acceptable performance provides four single band modes with the impedance bandwidth of 17%, 11%, 14 % and 6%. Index Terms-Dielectric resonator antenna (DRA), reconfigurable antenna, PIN diode.

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Section: Introductionmentioning

confidence: 99%

A Compact Frequency-Reconfigurable Dielectric Resonator Antenna for LTE/WWAN and WLAN Applications

Danesh

Rahim

Abedian

et al. 2015

Antennas Wirel. Propag. Lett.

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“…In order to adjust the operating frequency of The DRA, to be suitable for Cognitive Radio systems, an external matching circuit can be used. The procedure for matching rectangular dielectric resonator antennas has been reported in recent papers [18,19]. From Fig.…”

Section: Resultsmentioning

confidence: 99%

Experimental Investigations of Ultra-Wideband Antenna Integrated With Dielectric Resonator Antenna for Cognitive Radio Applications

Messaoudene¹,

Denidni²,

Benghalia³

2013

PIER C

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Abstract-In this paper, an ultra-wideband (UWB) patch antenna integrated with a dielectric resonator is proposed for cognitive radio applications. The patch antenna is fed by a coplanar waveguide (CPW) line, and it consists of a rectangular monopole having an elliptical base, and operates from 2.44 to 12 GHz. This UWB antenna is intended to collect the information. Moreover, the proposed structure integrates a narrow-band rectangular dielectric resonator antenna (RDRA) for operation, with very good isolation between the two ports (transmission coefficient S 21 less than −20 dB). The RDRA provides a bandwidth from 5.23 GHz to 6.11 GHz. The electromagnetic analysis is carried out using tow commercial software tools. Furthermore, to validate the proposed concept, experimental measurements are also performed.

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“…The air-filled channels are inserted between the DRA and the ground plane, and resonance frequency can be tuned by sliding metallic dielectric slugs under the resonator. Hao et al 22 designed a frequency-tunable differentially fed rectangular dielectric resonator antenna (DRA) loaded by chip capacitors or chip varactors. The resonance frequency of this DRA can be controlled by the applied varactor voltage.…”

Section: Introductionmentioning

confidence: 99%

Thermally tunable slot-coupled dielectric resonator antenna

Chen

Wang

et al. 2017

AIP Advances

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Absorption enhancement and total absorption in a graphene-waveguide hybrid structure AIP Advances 7, 025101 (2017); https://doi.org/10.1063/1.4975706The influence of the edge effect on the skyrmion generation in a magnetic nanotrack AIP Advances 7, 025105 (2017) A thermally tunable slot-coupled dielectric resonator antenna (DRA) has been designed and prepared by placing a thermosensitive ceramic resonator onto the slot. Typical magnetic resonance occurs in the resonator, which is closely related to its dielectric constant. Because the dielectric constant of the ceramic resonator decreases as the temperature increases, the resonance frequency of the proposed DRA increases as the temperature increases. The simulated results are in good agreement with the measured ones, which confirms the thermally tunable behavior. This approach provides a way for designing the frequency tunable antennas. © 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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Frequency-Tunable Differentially Fed Rectangular Dielectric Resonator Antennas

Cited by 54 publications

References 17 publications

A Compact Frequency-Reconfigurable Dielectric Resonator Antenna for LTE/WWAN and WLAN Applications

A Compact Frequency-Reconfigurable Dielectric Resonator Antenna for LTE/WWAN and WLAN Applications

Experimental Investigations of Ultra-Wideband Antenna Integrated With Dielectric Resonator Antenna for Cognitive Radio Applications

Thermally tunable slot-coupled dielectric resonator antenna

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