Compact and Wideband Differentially Fed Dual-Polarized Antenna With High Common-Mode Suppression

Zhou, Zhao; Wei, Zhaohui; Tang, Ziyue; Yin, Yingzeng; Ren, Jian

doi:10.1109/access.2019.2933228

Cited by 12 publications

(8 citation statements)

References 28 publications

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“…In [23,32,33] the isolation of the array is 25-31 dB, which is similar to the isolation of the applied single antenna. In [29,30] the isolation of a single radiator is relatively high (38-39 dB) due to differential feeding. Despite this, the isolation of the array is significantly worse (30 dB).…”

Section: Experimental Verificationmentioning

confidence: 99%

See 1 more Smart Citation

On the Design of Dual-Polarised Linear Antenna Arrays with Enhanced Port-to-Port Isolation

Wójcik

Surma

Нога

et al. 2020

Sensors

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The paper describes the process of designing a dual-polarised linear antenna array with enhanced port-to-port isolation, with the example of a four-element array with isolation better than 60 dB for the U-NII 5.15–5.925 GHz band. As a single antenna, dual-polarised electromagnetically coupled microstrip antennas were used with port-to-port isolation not exceeding 25 dB. A significant improvement in the isolation of the array was achieved thanks to the application of a dedicated feeding network. On the basis of theoretical analysis, a mathematical model describing port-to-port isolation was developed. Circuit and full-wave simulations were carried out to show the influence of electromagnetic couplings between antennas and/or the microstrip lines of the feeding network and the selection of phase shifters/power dividers on the isolation. The fabricated prototype is characterised by a gain of about 14 dBi, polarisation purity of at least −27 dB within the main lobe and close to expectations isolation better than 57 dB within the whole operational band.

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Section: Experimental Verificationmentioning

confidence: 99%

“…Another important aspect of the dual-polarised antennas that affects isolation is the operational frequency band. For instance, it is much easier to obtain isolation better than 60 dB in a narrow band [8,28], while wide-band antennas usually give lower values [29,30].…”

Section: Introductionmentioning

confidence: 99%

On the Design of Dual-Polarised Linear Antenna Arrays with Enhanced Port-to-Port Isolation

Wójcik

Surma

Нога

et al. 2020

Sensors

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“…Differentially fed broadband antennas with dual polarisations are developed in Ref. [45][46][47][48]. Their impedance matching performance improvement and the operation bandwidth widening can be attributed to the loaded parasitic elements [27,45].…”

Section: Introductionmentioning

confidence: 99%

Performance enhancement of dual‐polarised dipole antenna using parasitic elements

Wang

Zhang²,

En³

et al. 2022

IET Microwaves Antenna & Prop

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In this paper, a differentially fed broadband dual-polarised dipole antenna with parasitic elements is proposed. The presented antenna comprises a pair of strip dipoles as driven elements, four square patches as internal parasitic elements, four rectangular patches with cut corners as external parasitic elements, and two pairs of coaxial cables as feeding structures placed orthogonally to excite the driven strip dipoles to achieve �45°dual polarisation. Furthermore, two additional dual-polarisation modes can be simulated and a broadband dual-polarised antenna can be obtained by positioning the external and internal parasitic elements to the end and at the edge of driven elements, respectively. The presented antenna provides wide bandwidth using these dual-polarisation modes. The measurement results indicate that the presented antenna has excellent characteristics with a wide impedance bandwidth (IBW) of 68.4% (|S dd11 | < −18 dB and 1.30-2.65 GHz) and high isolation (|S dd21 | < −30 dB) within the IBW. Additionally, the four-element array of the broadband dual-polarised antenna with differential feeding characteristics was designed. The results show that the measured IBW is 59.7% (|S dd11 | < −15dB and 1.35-2.50 GHz). By contrast, the isolation between the two ports exceeds 30 dB across the impedance passband and has potential applications in multiple wireless communication systems owing to the wide bandwidth coverage (frequency division duplexing (FDD), digital communication system (DCS), personal communication system (PCS), Universal Mobile Telecommunications System (UMTS), and Long Term Evolution (LTE) frequency bands).This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…In recent years, various methods have been proposed to improve the impedance bandwidth. As a typical approach, the antenna achieves the wide impedance bandwidth by introducing an extra resonance via the loading technology 3–12 . In Reference [10], the impedance bandwidth of the antenna was increased to 47.6% by adding an open‐ended stub to the arms of the dipole.…”

Section: Introductionmentioning

confidence: 99%

“…As a typical approach, the antenna achieves the wide impedance bandwidth by introducing an extra resonance via the loading technology. [3][4][5][6][7][8][9][10][11][12] In Reference [10], the impedance bandwidth of the antenna was increased to 47.6% by adding an open-ended stub to the arms of the dipole. Moreover, various improved feeding structures were applied to enhance the bandwidth of the dual-polarized patch antennas.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized wideband dual‐polarized microstrip patch antenna with improved radiation performance

Yun

Ying

Liu

et al. 2021

Int J RF Mic Comp-Aid Eng

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A miniaturized wideband dual‐polarized microstrip patch antenna with enhanced radiation performance is proposed in this letter. First, eight parasitic patches loaded are employed in order to achieve apparent compact size. Then, four parasitic substrates are introduced to further decrease the resonant frequency of the antenna for size reduction. More importantly, the cross‐polarization (cross‐pol) is significantly reduced as the electric field at the edge of the radiation patch is balanced via these parasitic elements. After that, two coupled lines and transition lines placed on the substrate are connected by the probes, resulting in forming a new mode to effectively broaden the impedance bandwidth, and offer a good impedance matching. With these improvements, the volume of the antenna element is only kept of about 0.0032 λ03 (λ0 is the free space wavelength at the center frequency). Meanwhile, its bandwidth is obviously enhanced to about 15.8%. Finally, the 1 × 4 antenna array is fabricated and measured to validate the predicted performance. It presents that the impedance bandwidth of the array is about 18.8%. Besides, its dimension (0.0324 λ03) is only about 0.119–0.58 times of these previous works. Particularly, the wide HPBW and low cross‐pol are successfully acquired during the operating band.

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Compact and Wideband Differentially Fed Dual-Polarized Antenna With High Common-Mode Suppression

Cited by 12 publications

References 28 publications

On the Design of Dual-Polarised Linear Antenna Arrays with Enhanced Port-to-Port Isolation

On the Design of Dual-Polarised Linear Antenna Arrays with Enhanced Port-to-Port Isolation

Performance enhancement of dual‐polarised dipole antenna using parasitic elements

Miniaturized wideband dual‐polarized microstrip patch antenna with improved radiation performance

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