Frequency-Reconfigurable Rectangular Dielectric Resonator Antenna

Danesh, Shadi; Rahim, S. K. A.; Abedian, M.; Khalily, Mohsen; Hamid, M. R.

doi:10.1109/lawp.2013.2285649

Cited by 38 publications

(19 citation statements)

References 17 publications

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“…An alternative approach to overcome this constraint is to use a reconfigurable antenna. In general, reconfigurable antennas can be classified into 3 groups, either based on radiation pattern , polarization , or as frequency reconfiguration . Frequency reconfigurable antennas for wideband‐to‐narrowband reconfiguration enables the support of cognitive‐radio system tasks such as searching for spectrum and allocating suitable channels to be used .…”

Section: Introductionmentioning

confidence: 99%

“…Most frequency reconfigurable antennas alter their resonant frequencies and impedance bandwidths by altering the electrical length at the radiator patch or ground plane. This can be achieved by using mechanical devices , tunable materials and microwave electronic switch incorporated in the antenna. Microwave electronic switches are popular due to their small size, ease of integration with antenna, and easy accessibility.…”

Section: Introductionmentioning

confidence: 99%

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Frequency reconfigurable antenna for WLAN application

Lim

Rahim

Hamid

et al. 2016

Micro & Optical Tech Letters

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This paper presents a frequency reconfigurable antenna fed by a coplanar waveguide (CPW). The antenna is able to switch between narrowband operation, centred at 5.8 GHz, and wideband operation in the range of 3.5 GHz to 5.97 GHz. It consists of an ellipse‐shaped wideband antenna integrated with a bandpass filter for narrowband operation. A pair of rectangular resonators with stubs is implemented at the ground plane to alter the electrical length.When a pair of integrated p‐i‐n diodes are turned OFF, a passband is realized in conjuction with two stopbands to suppress unwanted frequencies. On the other hand, wideband operation is realized when the end of the slot is shorted by eliminating the function of resonator. The overall size of the proposed antenna is 37.8 × 49 mm2, inclusive of the DC biasing circuit. Simulated and measured for radiation pattern and reflection coefficient are carried out to compare the results. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:171–176, 2017

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Frequency reconfigurable antenna for WLAN application

Lim

Rahim

Hamid

et al. 2016

Micro & Optical Tech Letters

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“…As the dielectric resonator antennas (DRAs) is inherently low loss and small size, they would seem to be a good candidate for antenna designs . Meanwhile, the DRAs have been extensively used for other advantages such as: high radiation efficiency, light weight, wideband, and feeding simplicity . The higher efficiency in DRA is due to the lack of conductor loss .…”

Section: Introductionmentioning

confidence: 99%

Frequency reconfigurable dielectric resonator antenna for WiMAX/WLAN applications

Danesh

Rahim

Abedian

2015

Microw. Opt. Technol. Lett.

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A CPW‐fed frequency reconfigurable dielectric resonator antenna (DRA) is studied and presented for WiMAX and wireless local area network applications. The frequency tunable DRA is able to alter the frequency at three different dual bands frequency. The rectangular dielectric resonator has a permittivity of 10. Two PIN diode switches are located on the connecting lines of the network, which feeds the three dielectric resonator elements. Three dual‐band modes with center frequency of 2.4 and 5 GHz in ON–ON state, 2.5 and 5.2 GHz in OFF–ON state, 3.5 and 5.8 GHz in ON–OFF state by switching of the diodes are achieved. The proposed dielectric resonator (DR) antenna has a compact size of 33 × 45 mm2 with a DR thickness of 2.8 mm. the simulation and measurement results are compared to prove the good agreement and performance of the proposed antenna. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:579–582, 2015

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“…This implies that an antenna is supposed to cover a subset of bands at any given instant and subsequently to cover a different subset. Therefore, the frequency reconfigurable antennas have wide applicability and are able to provide multiband coverage by altering their resonance frequency and/or the impedance bandwidth [3,4].…”

Section: Introductionmentioning

confidence: 99%

A Compact Frequency Reconfigurable Hybrid DRA for LTE/Wimax Applications

Aqeel

Kamarudin²,

Khan

et al. 2017

International Journal of Antennas and Propagation

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A compact hybrid antenna structure with frequency reconfiguration capabilities is presented in this article. The proposed design employs a combination of a rectangular DR element and a coupling slot on the structure's ground plane (GP). The slot shifts the fundamental DRA mode by introducing a slow wave effect and its resonant behavior helps to achieve an omnidirectional pattern at low frequencies. The slot is loaded with a series of PIN diode switches whose ON/OFF combinations alter the effective slot length. Slot loading with PIN diodes results in frequency reconfiguration of the proposed structure with a large tuning range of 76.2% (between 1.73 and 3.86 GHz). A parametric analysis was performed to investigate the effects of slot length, width, and position on the reflection coefficients of the proposed structure. A prototype of the proposed design was fabricated and results were measured. The measured results show a close agreement with the simulated ones. The proposed design is suitable for DCS 1800 MHz, PCS 1900 MHZ, UMTS, LTE 2500-2700 MHz, and Wimax 3.5 GHz.

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Frequency-Reconfigurable Rectangular Dielectric Resonator Antenna

Cited by 38 publications

References 17 publications

Frequency reconfigurable antenna for WLAN application

Frequency reconfigurable antenna for WLAN application

Frequency reconfigurable dielectric resonator antenna for WiMAX/WLAN applications

A Compact Frequency Reconfigurable Hybrid DRA for LTE/Wimax Applications

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