Design of Wideband Base Station Antenna by Involving Fragment-Type Structures on Dipole Arms

Wang, Dong; Wang, Gang; Lu, Diqun; Yang, Nan; Zhang, Qingfu

doi:10.1109/tap.2022.3161285

Cited by 7 publications

(5 citation statements)

References 30 publications

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“…Compared to the broadband dual polarized antenna in [4], our antenna has smaller radiator size and wider bandwidth. Compared to the antenna in [11], our work has a much wider bandwidth and a smaller overall antenna size (including the reflector). These features make it attractive for base station applications.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

“…The voltage standing wave ratio (VSWR) is < 2.0 and also has wide beam characteristics. A dipole antenna based on a fragmented structure is proposed in [11]. The optimized crossed dipole antenna can obtain a wide operating bandwidth of 76.3%, and the whole antenna size (including the reflector plate) is about 0.75λ L × 0.75λ L × 0.16λ L .…”

Section: Introductionmentioning

confidence: 99%

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Compact Broadband Dual-polarized Antenna with Parasitic Patches

Han,

Shang,

Wang

2023

PIER Letters

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In this paper, a broadband compact dual-polarized antenna for base stations is proposed. This antenna consists of a pair of crossed dipoles, four triangular parasitic patches, and a box reflector. The crossed dipoles are fed by two 50 Ω coaxial cables. The increase of four parasitic patches allows the resonant point to be generated at high frequencies to further widen the impedance bandwidth; the size of the parasitic patches is reduced to realize the reduction of the antenna radiator size; and the impedance matching is improved by cutting circular slots in the dipole arms. The measured results show that the proposed antenna is able to achieve a wide impedance bandwidth of 79% (1.67 to 3.87 GHz) with VSWR less than 1.6. A stable gain of 8-8.7 dBi and a half-power beamwidth (HPBW) of 60-78 • are obtained at 2.2-3.65 GHz. In addition, the antenna radiator is very compact in size, only about 0.41λ L × 0.41λ L × 0.17λ L , where λ L is the longest operating wavelength.

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Section: Simulation and Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact Broadband Dual-polarized Antenna with Parasitic Patches

Han,

Shang,

Wang

2023

PIER Letters

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“…Several wideband dual-polarized antennas, such as patch antenna [3], [4], Vivaldi antenna [5]- [7], magneto-electric dipole antenna [8], [9] and crossed dipole antenna [1], [10]- [19], can be used in base station applications. The crossed dipole antennas are widely used in wireless communication systems due to the advantages of dual polarization, stable radiation pattern, small size and easy fabrication.…”

Section: Introductionmentioning

confidence: 99%

Band-Notched Dual-Polarized Antennas for 2G/3G/4G/5G Base Station Using the GCPW DGS-DMS Hybrid Filter

Li,

et al. 2024

IEEE Access

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Two broadband dual-polarized band-notched crossed dipole antennas based on the grounded coplanar waveguide (GCPW) filter for 2G/3G/4G/5G base station are proposed in this paper. Two antennas with two and three radiation nulls are displayed to demonstrate the design innovation. Firstly, a wideband crossed dipole antenna with GCPW feed structure is designed, and its coverage frequency is 1.7-3.6 GHz. Then, a compact GCPW second-order hybrid bandstop filter is designed using defected ground structure (DGS) and defected microstrip structure (DMS). The DGS-DMS filter are embedded inside the antenna radiator to achieve the stopband covering 2.9-3.1 GHz with only one dielectric substrate. At last, a miniaturized GCPW third-order DGS-DMS highly selective bandstop filter is integrated in wideband antenna to realize the stopband of 2.87-3.17 GHz. The proposed band-notched antenna uses only one substrate. Compared with the antenna using second-order filter, the antenna using third-order filter has one more radiation null, wider stopband of 2.87-3.17 GHz and higher selectivity.INDEX TERMS Band-notched, base station, DGS, DMS, dual-polarized.

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“…Hybrid real and binary variables are frequently used in electromagnetic optimization problems, such as pixelated antenna design [6], [7], [9]- [11], Wideband radar cross section (RCS) reduction pixelated metasurface design [12], and planar microwave absorber (PMA) design [8], [9], [13]. The partial radiation structure of the antenna usually consists of pixelated square patches of metal or air that are used to change the surface current distribution of the original antenna in order to improve its radiation performance.…”

Section: Introductionmentioning

confidence: 99%