Compact wideband hybrid fractal antenna loaded on AMC reflector with enhanced gain for hybrid wireless cellular networks

Mohanty, Asutosh; Sahu, Sudhakar

doi:10.1016/j.aeue.2021.153837

Cited by 23 publications

(10 citation statements)

References 33 publications

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“…is < −15 dB, due to the incorporation of DGS elements. Thus, the below far‐field radiation plots at each discrete frequency points have a radiation diversity, which could be significant for modern RF applications 35–40 like hybrid wireless cellular communication networks & also, for potential applications like RF energy harvesting.…”

Section: Resultsmentioning

confidence: 99%

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Investigation of a defected ground structure inspired wideband printed monopole mobile antenna using characteristics mode analysis

Behera

Mohanty

Nasimuddin

2021

Int J RF Mic Comp-Aid Eng

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In this research article, a wideband mobile antenna with defected ground structure (DGS) is designed using characteristics mode analysis. It consists of a modified crescent-shaped monopole antenna (M-mode), L-shaped stub (S-mode), and DGS element (slot modes). Here, the fundamental resonating modes of M-and S-mode are induced to operate in the integration mode (I-mode) to obtain good impedance bandwidth (IBW). The DGS is implemented in ground plane to get slot modes (1 and 2). By combining slot modes with M-mode and S-mode, it exhibits broadened IBW (i.e., C-mode), is suitable for the coverage of mobile bands (sub-6 GHz frequency bands). For the clarity, modal investigation is performed at each critical stages of antenna designing process and the modal metrics like modal significance, characteristics angle (β n ), Eigen values (λ n ), modal currents, and modal patterns are extracted by using Computer Simulation Technology (CST) Studio Suite. The

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Section: Resultsmentioning

confidence: 99%

“…The fabricated prototype with experimental measurement setup of designed printed monopole antenna with DGS elements are shown in Figure 16. applications [35][36][37][38][39][40] like hybrid wireless cellular communication networks & also, for potential applications like RF energy harvesting.…”

Section: Resultsmentioning

confidence: 99%

Investigation of a defected ground structure inspired wideband printed monopole mobile antenna using characteristics mode analysis

Behera

Mohanty

Nasimuddin

2021

Int J RF Mic Comp-Aid Eng

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“…The top portion consists of a fractal radiating structure and the bottom is with a partial ground. The design equations of fractal radiating structure are motivated from previous reported literatures 19,20 and the mathematical intuition of arrangement of self‐similar elements is based on iterative function system (IFS) 21 . The 50 Ω offset‐feed is asserted for better impedance matching owing to the miniaturized electrical size of fractal radiator (

\approx 0.05 λ_{0}

, where

λ_{0}

is the lowest operating wavelength).…”

Section: Antenna Designsmentioning

confidence: 99%

Reconfigurable miniaturized UWB multiple‐input‐multiple‐output antenna system design and study using characteristics mode analysis

Mohanty

Behera

Nasimuddin

2022

Int J RF Mic Comp-Aid Eng

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In this article, a miniaturized reconfigurable 4-element ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna is proposed to operate from 2.52 to 24 GHz, and studied using characteristics mode analysis (CMA). Initially, a 1-element antenna is designed and then extended to 4-element MIMO configuration. The MIMO antenna achieves design merits by orthogonally sorting fractal radiators for miniaturization, a Γ-shaped slot for band-notching and rotationally symmetric connected ground for isolation. CMA is explored to study the band-notched behavior effect in antenna, which shows two operating modes, NM-mode and NB-mode (NM: normal-mode, NB: Notched-mode). The modal metrics is discussed for both modes giving an insights on the bandwidth and radiation potentials. Four RF p-i-n diodes are mounted at the Γ-shaped slot orifice on each antennas, to control the band-notched operation. At OFFstate, the antenna is with wide-band-rejection from 3.7 to 8.87 GHz and at ON-state, it works in pure UWB mode. To demonstrate its feasibility, a fabricated antenna of size 24 mm Â 24 mm is experimented which are in good agreements with simulated results.

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“…The adopted metasurfarce can be used for antenna operation and scattering reduction simultaneously. In addition, some wideband designs based on metasurfaces are also proposed in published papers [4][5][6]. In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. [4], an AMC reflector‐backed wideband hybrid fractal antenna is designed and analysed. The antenna has an impedance bandwidth of 61.68% and a radiation efficiency higher than 82.5%.…”

Section: Introductionmentioning

confidence: 99%

A drawer‐conformal radio‐frequency identification antenna with vertically polarised quasi‐endfire radiation

Chen

Jia-fu

Cheng

2022

IET Microwaves Antenna & Prop

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A radio‐frequency identification antenna with a quasi‐endfire radiation beam and a vertical polarisation is presented. A size‐reduced magnetic dipole is used as the radiation source whose radiating waves are restricted by a dual‐layer metasurface to propagate along the horizontal direction and result in an endfire pattern. Two vertical metal plates are placed at both ends to induce magnetic currents to realise the vertical polarisation. Based on the near‐field power analysis, the proposed metasurface‐covered endfire antenna, which is conformal to fit compactly into a drawer with little influence on the storage space, can be used for smart home and smart library systems, such as intelligent storage and reading.

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Compact wideband hybrid fractal antenna loaded on AMC reflector with enhanced gain for hybrid wireless cellular networks

Cited by 23 publications

References 33 publications

Investigation of a defected ground structure inspired wideband printed monopole mobile antenna using characteristics mode analysis

Investigation of a defected ground structure inspired wideband printed monopole mobile antenna using characteristics mode analysis

Reconfigurable miniaturized UWB multiple‐input‐multiple‐output antenna system design and study using characteristics mode analysis

A drawer‐conformal radio‐frequency identification antenna with vertically polarised quasi‐endfire radiation

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