An Air-Gap-Based Frequency Switching Method for the Dielectric Resonator Antenna

Apperley, Thomas; Okoniewski, M.

doi:10.1109/lawp.2014.2309332

Cited by 23 publications

(12 citation statements)

References 8 publications

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“…19,20 However, this approach does not support dynamic frequency tuning. Apperley et al 21 investigated an air-gap-based frequency tunable DRA. 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.…”

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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Section: Introductionmentioning

confidence: 99%

Thermally tunable slot-coupled dielectric resonator antenna

Chen

Wang

et al. 2017

AIP Advances

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“…The frequency tunable antennas can achieve multiple functions by altering its properties. Therefore, there is a notable reduction in size for the multimode and multiband antennas which can be subbed with multiple single functions . Unlike numerous reconfiguration methods that are existing to conventional metallic antennas, there are justly few frequency reconfigurable DRAs.…”

Section: Introductionmentioning

confidence: 99%

“…In and , the frequency tuning DRA are achieved by locating the switch on the way of feedline. In parallel, in , the frequency can be shifted by sliding the metallized slug underneath the DR. However, in this design, pneumatic control is much slower than the electronic switching control, which causes the antenna with a functioning microfluidic switch system is improper for fast moving speed applications.…”

Section: Introductionmentioning

confidence: 99%

A C‐shaped dielectric resonator antenna with frequency reconfigurable for ISM and LTE band applications

Danesh

Kamarudin

Rahman

et al. 2016

Micro & Optical Tech Letters

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A frequency tunable dielectric resonator antenna (DRA) is studied and presented for ISM and LTE band applications. Here, the frequency operation of the proposed DRA is switched from dual band to narrowband mode by using the PIN diode switches. The switches are employed by RF PIN diodes and placed on the feed line network to excite the dielectric resonator (DR). The proposed reconfigurable DRA has a compact size with a thickness of 3 mm and the overall size of 30 × 37 mm2 that is proper for mobile devices. The measured and simulated results indicate that the proposed DRA provides a single and dual band modes which covers the ISM applications and 2.6 GHz LTE system, respectively

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“…Superior advantage such as reconfigurable capability, multipurpose [4][5][6][7].Despite many reconfiguration methods existing to conventional metallic antennas, there are rather few frequency reconfiguration mechanisms for the DRA. Some designs of frequency reconfigurable DRAs using different techniques have been reported in the current literature [8][9][10][11][12][13][14]. In [8] and [9], the lengths and positions of the parasitic strip and slot can be used to attain tunable frequency of the DRAs, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…In another frequency tunable DR antenna, the air-filled channels are introduced between the ground plane and DRA, and resonant frequency can be shifted to the lower frequencies by sliding metallized dielectric slugs under the dielectric resonator [10]. By locating the switches on the way of feed line in [11] and [12], some narrow bands and dual bands tuning frequency are obtained, respectively.…”

Section: Introductionmentioning

confidence: 99%