A compact multiband planar antenna using modified L-shape resonator slots

Rajmohan, Indu Jiji; Hussein, Mousa I.

doi:10.1016/j.heliyon.2020.e05288

Cited by 4 publications

(3 citation statements)

References 29 publications

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“…The peak gain and the efficiency of the antenna are depicted in Figure 10 . It is noticed that a reasonable gain performance is obtained and the efficiency is above 93% and better than those reported in the literature [ 34 , 35 , 36 , 37 , 39 , 40 ]. Table 2 shows a comparison between the proposed design and other designs reported.…”

Section: Resultsmentioning

confidence: 53%

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Study of a printed split-ring monopole for dual-spectrum communications

Yeboah-Akowuah

Tchao

Ur-Rehman

et al. 2021

Heliyon

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In this study, we present a low-profile dual-spectrum split-ring monopole that operates at industrial, scientific and medical (ISM) (2.45 GHz) band and ultrawideband (UWB) spectrum (3.1–10.6 GHz). We optimised the design for dual-band operations by using circular split-ring radiators. The coupling between both rings drives the structure to achieve quasi-resonance frequencies in the UWB spectrum. A small stub combines the two radiators and both behave as a single element that enables the antenna to resonate at ISM band 2.45 GHz. The antenna achieves the desired characteristics in terms of good impedance matching, radiation properties as well as other physical and practical requirements such as compact geometry, planar profile and easy fabrication. The very good agreement between the simulated and measured results show that the proposed antenna has the potential for dual-band application.

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Section: Resultsmentioning

confidence: 53%

“… Ref Antenna Size (mm 2 ) λ g =

(m) Elec. size λ = c/f low Gain(dBi) Efficiency (%) > Methodology -10 dB (GHz) [ 34 ] 21 . 0 × 28 .…”

Section: Resultsmentioning

confidence: 99%

Study of a printed split-ring monopole for dual-spectrum communications

Yeboah-Akowuah

Tchao

Ur-Rehman

et al. 2021

Heliyon

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“…By modifying the current flow, this can shift the antenna's working frequency, thereby shifting the frequency to a higher or lower band. A planar multiband antenna with a hexagonal patch is constructed [4]. On the hexagonal patch, two pairs of modified L-shaped resonator slots are etched to provide multibands.…”

Section: Introductionmentioning

confidence: 99%

Coaxial Pin-fed Multiband Fractal Square Antenna for Satellite Applications

Nanthagopal,

Paramasivam

2023

PIER C

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The multibands are achieved by using a fractal square antenna. The fractal square is formed from an initial square patch and then optimized with increasing fractal iterations to resonate at these bands. The fractal property of the design also helps in the miniaturisation of the antenna. The proposed antenna has gain ranging from 4.9 dB to 9.7 dB and radiation efficiencies from 70% to 98%. The proposed antenna is simulated using the CST microwave studio. The antenna is then fabricated, and its performance parameters are measured. After finding a match between simulated and measured results, the same antenna and its array are tested in a MATLAB simulation environment for direction of arrival (DOA) and adaptive beamforming (AB) at all five bands. Using different DOA and AB algorithms, the performance of the antenna array is evaluated. The ability to accurately estimate the DOA of all signals delivered to the adaptive array antenna allows it to maximise its performance in terms of recovering the required transmitted signal and suppressing any interference signal. Then, the beam of the antenna is modified using the DOA algorithm to generate a beam in the desired direction and nulls in the unwanted direction for proposed satellite communications.

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