Design of a miniaturized frequency reconfigurable antenna for rectenna in WiMAX and ISM frequency bands

Naqvi, Syed Aftab; Khan, Muhammad Saeed

doi:10.1002/mop.30962

Cited by 13 publications

(10 citation statements)

References 21 publications

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“…The respective seventh fused fractal structure is adjoined with feedline by using conducting strip line with RF switching element PIN diode inside it (Figure 1: stage-IV) to established the frequency band reconfigurability feature in proposed design. During forward bias mode (ON-state) of PIN diode, the electric current path length is varied (current perturbation) which derive the hepta (seven) band characteristics in proposed design [38][39][40].…”

Section: Antenna Design and Configurationmentioning

confidence: 99%

A metamaterial loaded hybrid fractal multiband antenna for wireless applications with frequency band reconfigurability characteristics

Saraswat¹,

Kumar

2020

Frequenz

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In the present article authors propose the design and analysis of an octagonal shape multiband metamaterial loaded antenna with implementation of hybrid fractal geometry for wireless applications. Multiband features in the antenna structure is realized by applying the slotted and hybrid fractalization of Moore and Koch curve approach in radiating section along with introduction of two metamaterial SRR cells. The frequency band reconfigurability characteristics in proposed design is achieved by placing the PIN diode inside the connecting strip between the central hybrid fractal geometry and feedline. During forward bias condition of PIN diode antenna structure resonates at hepta (seven) band mode at WiMAX (3.5 GHz)/Lower C-band (4.41 GHz)/WLAN (5.4/5.8 GHz)/Lower X-band (8.26 GHz)/Upper X-band (10.48 GHz)/Lower Ku-band (13.35 GHz)/Middle Ku-band (14.42 GHz) wireless standards with S11 ≤ −10 dB. Proposed antenna represent the hexa and hepta band features during reverse bias (OFF-state) and forward bias condition (ON-state) of PIN diode respectively. A stable and consistent radiation patterns, appropriate impedance matching and an acceptable gain are achieved at all the operating frequencies of the proposed antenna.

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Section: Antenna Design and Configurationmentioning

confidence: 99%

A metamaterial loaded hybrid fractal multiband antenna for wireless applications with frequency band reconfigurability characteristics

Saraswat¹,

Kumar

2020

Frequenz

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“…Subsequently, by loading the third SRR cell attached with the feedline via Moore curve shape strip line with PIN diode inside it (ON state mode), the hepta band configuration is accomplished covering the wireless standards at Upper L Figure 2. In design step-IV, during ON state of PIN diode an effect of current perturbation in antenna design is created which leads to the hepta band configuration [36,37]. As per design step-IV, the final configured antenna is fabricated on an FR4 substrate with electrical dimension 0.191λ × 0.142λ × 0.0103λ (29.5 mm × 22 mm × 1.6 mm) at lower frequency of 1.94 GHz fed by a trapezoidal shape feedline (characteristic impedance of 50 ohm), as shown in Figure 3.…”

Section: Antenna Design and Configurationmentioning

confidence: 99%

A Metamaterial Loaded Hybrid Fractal Hepta-Band Antenna for Wireless Applications With Reconfigurability Characteristics

Dwivedi¹,

Kumar²,

Tharani³

2020

PIER C

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In this article, the authors present a hepta band metamaterial inspired hybrid fractal octagonal shape antenna for wireless applications. Multiband characteristics in the proposed design are achieved by hybrid fractal form of Moore curve and Koch curve with metamaterial loading. A well matched impedance bandwidth (S 11 ≤ −10 dB) is accomplished at seven microwave frequency bands, Upper L band (1.93 ∼ 2.08 GHz), S band, WiMAX (3.3 ∼ 3.7 GHz), C band, WLAN (5.4 ∼ 5.9 GHz), C band, IEEE INSAT application (6.5 ∼ 7.2 GHz), X band terrestrial broadband, space communication and Radio Navigation (RN) application (8.51 ∼ 11.05 GHz), Lower Ku band direct broadcast satellite service (12.2 ∼ 12.7 GHz), and Middle Ku band satellite communication operating band (14.73 ∼ 15.84 GHz) covering various wireless applications. The antenna achieves hexa/penta band characteristics during switching ON/OFF state of PIN diode placed between the Moore curve structure (attached with centered SRR cell) and feedline. Radiation patterns are found in stable forms at all the resonant frequencies. Measured results of the proposed design are compared with simulated ones indicating good agreement between them.

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“…Next for configuration‐IV, the reclined L‐shaped slot in ground plane (with PIN diode in ON state mode) generating an additional current path due to the perturbation of the current flow in antenna structure that leads to the hexa band operating mode. At ON state of diode (in ground plane) obtaining the additional band 15.56 to 16.46 GHz regarding lower K U band for satellite communication systems …”

Section: Proposed Antenna Designmentioning

confidence: 99%

“…At ON state of diode (in ground plane) obtaining the additional band 15.56 to 16.46 GHz regarding lower K U band for satellite communication systems. 24,25 Based on the parametric analysis and optimized dimensions of the proposed, the following guidelines are evolved for the design of the antenna. These guidelines are applicable to an antenna fabricated on a dielectric FR4 substrate (44 × 39 × 1.6 mm 3 ) of relative permittivity 4.3.…”

Section: Proposed Antenna Designmentioning

confidence: 99%

A vertex‐fed hexa‐band frequency reconfigurable antenna for wireless applications

Saraswat¹,

Kumar

2019

Int J RF Microw Comput Aided Eng

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Present article embodies the design and analysis of an octagonal shaped split ring resonator based multiband antenna fed at vertex for wireless applications with frequency‐band reconfigurable characteristics. The proposed antenna is printed on FR4 substrate with electrical dimension of 0.4884 λ × 0.4329 λ × 0.0178 λ (44 × 39 × 1.6 mm3), at lower frequency of 3.33 GHz. The antenna consists of SRR based vertex fed octagonal ring as the radiation element and switchable reclined L‐shaped slotted ground plane. Antenna achieves six bands for wireless standards viz: upper WLAN (5.0/5.8 GHz), lower WiMAX (3.3 GHz), super extended C‐band (6.6 GHz), middle X band (9.9 GHz—for space communication), and lower KU band (15.9 GHz—for satellite communication systems operating band). Stable radiation patterns are observed for the operating bands with low cross polarization. The proposed design achieves hexa band characteristics during switching ON state of PIN diode located at reclined L‐shaped slot in the ground plane. Experimental characteristic of antenna shows close agreement with those obtained by simulation of the proposed antenna.

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Design of a miniaturized frequency reconfigurable antenna for rectenna in WiMAX and ISM frequency bands

Cited by 13 publications

References 21 publications

A metamaterial loaded hybrid fractal multiband antenna for wireless applications with frequency band reconfigurability characteristics

A metamaterial loaded hybrid fractal multiband antenna for wireless applications with frequency band reconfigurability characteristics

A Metamaterial Loaded Hybrid Fractal Hepta-Band Antenna for Wireless Applications With Reconfigurability Characteristics

A vertex‐fed hexa‐band frequency reconfigurable antenna for wireless applications

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