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Subject: search.filters.subject.Multiband antenna

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    Tri-Band endfire antenna array with wide Angles of Beam-Scanning capability for 5G mmWave mobile communication
    (Institute of Electrical and Electronics Engineers Inc, 2023) Zidour, Ali; Ayad, Mouloud; Alibakhshikenari, Mohammad; Basherlou, Haleh Jahanbakhsh; Parchin, Naser Ojaroudi; See, Chan Hwang
    In this paper, a novel multiband phased array antenna with endfire radiation pattern is designed at millimeter-wave (mmWave) frequency bands for 5G mobile applications. The proposed antenna element is a compact quasi-Yagi with a modified dipole driver to generate multiband operation, arranged on low-loss RO4003C materiel. The antenna array achieves excellent performance and covers wide frequency ranges of (24.15-29.8 GHz), (36.2-50 GHz) to support 5G NR bands; 26, 28, 39 and the new allocated 48 GHz. The array can exhibit a maximum realized gain from 8.4 dBi to 11.8 dBi. Meanwhile, wide beam-scanning angles from - 68° to 65° at 28 GHz, from 40° to 41° at 39 GHz, and from - 33° to 35° at 48 GHz are realized.
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    Design of miniaturized tri-band antenna based on differential evolution algorithm
    (John Wiley and Sons Inc, 2023) Fertas, Fouad; Fertas, Khelil; Denidni, Tayeb A.; Challal, Mouloud
    A novel highly miniaturized triple band structure based on Z-slots-shaped antenna is presented in this letter, with only 0.0015 (Formula presented.) footprint, where (Formula presented.) is the free space wavelength at 1.3 GHz. The proposed design can generates three resonant frequency bands (1.3–1.62 GHz), (2.22–2.59 GHz), and (3.24–3.65 GHz) with −10 dB reflection coefficient, a triple band function is achieved by etching tow connected Z-shaped-slots in the radiating element and the differential evolution algorithm is then used to control the currents path, the prototype of the proposed antenna is printed on a single substrate layer and fed via coplanar waveguide CPW technology. The measured and simulated results are in good agreement, and validate the design principle, the results show that the antenna has a compact size (19.5 × 17.6 mm2), aside from its planar design, simple manufacturing, and low cost to fabricate, this antenna exhibits stable omnidirectional radiation patterns in E plane as well as bidirectional radiation patterns in H plane, making it an ideal device for multiband applications
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    Multi-L slots antenna for multiband applications
    (IEEE, 2019) Fertas, Fouad; Challal, Mouloud; Fertas, Khelil
    This research paper present a multi-L shaped slots antenna (MLSSA) for multiband operation, the aim of this study is to design small and simple profile antenna that can operate in multiband frequency, the proposed antenna contain a rectangle microstrip patch with a small overall size of 27.4×24 mm 2 and a transmission line with 50 Ω coplanar waveguide (CPW), the bands characteristics are realized by introducing a six of L-shaped slots in radiating element, the prototype and proposed antenna have been constructed and experimentally studied. The measured S11 shows a good agreement with the simulated one, thereby the antenna respond at five frequency bands which are (2.36-2.58 GHz), (3.07-4.01 GHz), (4.25-5.27 GHz), (5.9-6.29 GHz) and (7.01-S.l GHz) to meet requirements for WILAN (5.15-5.S75 GHz), WIMAX (3.3-3.7 GHz), LTE band (3.2-3.3 GHz) applications