Dual-Band Dual-Polarized Slotted-Patch Antenna for In-Band Full-Duplex Applications

Bui, Tran Hien; Vu, Hieu Trung; Ta, Son Xuat; Kiem, Nguyen Khac; Nguyen‐Trong, Nghia

doi:10.1109/lawp.2023.3240831

Cited by 4 publications

(2 citation statements)

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“…In the dual-band dualmode antennas [30]- [32], each port is for either lower or upper band only. In [33], [34], [39], one orthogonal polarization is missing. As compared to the existing dualband tripolarized antennas [35], [36], the proposed prototype used the least number of layers with a simpler configuration and easy realization while keeping a low-profile structure.…”

Section: Comparison and Discussionmentioning

confidence: 99%

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A Compact Dual-Band Tripolarized Patch Antenna With Simple Structure and Very High Isolation

Ta,

Bui,

Nguyen

et al. 2024

IEEE Open J. Antennas Propag.

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A compact dual-band tripolarized antenna with simple structure and high isolation operating at 2.45 GHz and 3.5 GHz bands is presented. The design is composed of a slotted patch and a monopolar patch connected together by four vias. The antenna uses a double differential-fed scheme for xand yhorizontally polarized broadside radiations and a single-ended port at the center for vertically-polarized omnidirectional radiation. The combination of slotted patch, monopolar patch, and vias yields several interesting features, which are exploited in the design to achieve dual-band tripolarized operation. Thank to the differential feed scheme and structural symmetry, the proposed antenna achieves a very high isolation among all ports. For verification, the final design is fabricated and measured. The double differential-fed scheme are realized by using two wideband out-of-phase power dividers, whose operational bandwdith covers both 2.45 and 3.5 GHz bands. The antenna with profile of 0.09λ 2.45−GHz yields a measured 10-dB return loss bandwidth of 2.43 − 2.49 GHz and 3.23 − 3.66 GHz and isolation of ≥ 35 dB among all ports. Tripolarized radiation is verified with far-field measurement, showing highly symmetrical pattern and low cross-polarization in all three operational modes. The proposed design is a good candidate for dual-band communication systems which require polarization and pattern diversity antennas.

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Section: Comparison and Discussionmentioning

confidence: 99%

“…2(a), the combination of slotted and monopolar patches yields three resonances in the |S d1d1 | curve, i.e., at 2.45, 3.3, and 3.7 GHz. Although dual-band slotted patch was proposed in [39], it exhibited narrow bandwidth in both bands. Meanwhile, the proposed design (Fig.…”

Section: Dual-polarized Broadside Radiation Modesmentioning

confidence: 99%