Optically Controlled Frequency-Reconfigurable Rectangular Dielectric Resonator Antenna with Photoconductive Switches

Soltan, Akrem; Abdulmajid, Abdulmajid A.; Khamas, S.K.

doi:10.1109/wmcs52222.2021.9493292

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Electronic techniques include RF-microelectromechanical system MEMS, 7 PIN diodes, 8 and varactor diodes, 9 whilst optical techniques include the use of photo conductors. 10 On the other hand, the physical tuning is achieved by the mechanical deformation of the antenna shape. 11 Also, tunable materials are used to design reconfigurable antennas by using smart materials such as ferrites 12 and liquid crystals.…”

Section: Introductionmentioning

confidence: 99%

“…Frequency reconfigurability can be attained by utilizing different methods, which can be classified into four main categories: namely, electronic techniques, optical techniques, physical tuning, and tunable materials. Electronic techniques include RF‐micro‐electromechanical system MEMS, 7 PIN diodes, 8 and varactor diodes, 9 whilst optical techniques include the use of photo conductors 10 . On the other hand, the physical tuning is achieved by the mechanical deformation of the antenna shape 11 .…”

Section: Introductionmentioning

confidence: 99%

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Miniaturized reconfigurable dielectric resonator antenna array with reduced beam squinting

Qasaymeh

Almuhaisen

2022

Int J RF Mic Comp-Aid Eng

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In this study, a compact reconfigurable dielectric resonator antenna (DRA) array is proposed to operate in the band IEEE 802.11 WLAN. The main goal of this design is to propose an array feeding topology to avoid radiated beam squinting due to frequency alteration and acquire some gain enhancement with miniaturized array size. For that, the parallel-series geometry is used to layout a microstrip feeder with four output ports on the front plane. Each output port coupled with a rectangular slot (RS) at the bottom plane, and a rectangular dielectric resonator (RDR) mounted above the RS. The frequency reconfigurability is attained by employing PIN diodes that are integrated with the four output ports to operate as switches. Moreover, an impedance equivalent circuit model of the proposed array is postulated for studying the resonance behavior to ensure the validity of the proposed design prior to simulation and fabrication. The prototype 64 Â 18 mm 2 achieves frequency agility in the range of 5.8 to 5.17 GHz. Also, the realized gain ranges from 12.2 to 10. 5 dBi. The array specifications make it a decent potential candidate to be used for WLAN wireless systems.

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