Two-Segments Compact Dielectric Resonator Antenna for UWB Application

Abedian, M.; Rahim, S. K. A.; Khalily, Mohsen

doi:10.1109/lawp.2012.2232639

Cited by 66 publications

(36 citation statements)

References 11 publications

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“…There are various excitation mechanisms that can be used to excite DRs such as coaxial probe [4], microstrip feed lines [5], and coplanar waveguides (CPWs) [6]. Dielectric resonator Antennas (DRAs) experience very low loss, resulting in higher efficiency without conductor loss.…”

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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“…Fig. 2(a) and (e), a combination mechanism of rectangular DR with dimension of mm , loss tangent of , and permittivity of 10 and U-shaped microstrip feedline are implemented to achieve a wideband characteristic with compact size [5]. For the purpose of bandwidth improvement and first band rejection creation simultaneously, the inserted RDR is separated by a gap ( ) to introduce two identical rectangular DRs with dimensions mm each, while a stub is attached to the hollow center of the U-shaped feedline, shown in Fig.…”

Section: Antenna Configuration and Designmentioning

confidence: 99%

Novel Design of Compact UWB Dielectric Resonator Antenna With Dual-Band-Rejection Characteristics for WiMAX/WLAN Bands

Abedian

Rahim

Danesh

et al. 2015

Antennas Wirel. Propag. Lett.

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A novel compact dual band-notched dielectric resonator antenna (DRA) for ultrawideband (UWB) applications is proposed. Here, the bandwidth enhancement and the first band notch is realized by embedding a stub that is located to the hollow center of a U-shaped feedline simultaneously. By etching an inverted T-shaped parasitic strip at the back plane of an antenna that is surrounded by a dielectric resonator (DR), the second band rejection is created. By cutting a slot at the proper position on the ground plane, the width of the second band notch is controlled. The proposed antenna size is mm or about at 3.1 GHz. The measurement results demonstrate that the proposed DRA provides acceptable radiation performances such as an ultra-wide impedance bandwidth of around 122% with two sufficient band rejections in the frequency bands of 3.22-4.06 and 4.84-5.96 GHz, high radiation efficiency, and nearly constant gain.Index Terms-Band-notched, compact, dielectric resonator antenna (DRA), ultrawideband (UWB) antenna.

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“…Generally, in order to have strong coupling, resonators with high dielectric constant are used over the radiating element whereas materials with low dielectric constant have low Q factor and this helps to enhance the impedance bandwidth . Equation shows the Q factor expression

Q_{rad} = 2 w_{normalo} W_{normale} / P_{rad}

where w o denotes the radian frequency at resonance, W e is the stored electric energy, and P rad represents the radiated power.…”

Section: Antenna Design and Geometrymentioning

confidence: 99%

Wideband dielectric resonator antenna using CPW fed segments

Nawaz

Shahid

Gentili

2015

Micro & Optical Tech Letters

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In this article, a wideband dielectric resonator antenna with relative bandwidth of 81.25% is proposed. The antenna is coplanar waveguide fed and is provided with two different dielectric loadings to obtain the desired results. The antenna has been fabricated using FR4 as a substrate and Roger RT/duroid 5880 and Roger RT/duroid 6010 as dielectric resonators with a total size of 42 × 36 × 6.6 mm3. The proposed antenna is suitable for wide‐band applications, has a rather uniform radiation pattern, and a high radiation efficiency throughout the operational bandwidth along with being low‐profile and small in size. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:441–445, 2016

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Two-Segments Compact Dielectric Resonator Antenna for UWB Application

Cited by 66 publications

References 11 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

Novel Design of Compact UWB Dielectric Resonator Antenna With Dual-Band-Rejection Characteristics for WiMAX/WLAN Bands

Wideband dielectric resonator antenna using CPW fed segments

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