A Low-Profile Ultrawideband Slotted Dipole Antenna Based on Artificial Magnetic Conductor

Jiang, Zhaoneng; Wang, Zhixin; Nie, Li Ying; Zhao, Xing; Huang, Shichun

doi:10.1109/lawp.2022.3140802

Cited by 20 publications

(15 citation statements)

References 16 publications

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“…In Table 1 , the proposed antenna has a higher peak gain and achieves a far wider IBW (impedance bandwidth) and axial ratio bandwidth (ARBW) than 2,7,9,10,13,14,21 . The proposed antenna has a smaller overall size and achieves a far wider IBW and ARBW than 3,24 . As for, 23 the overall size is smaller than the proposed antenna and the IBW and ARBW are wide.…”

Section: Resultsmentioning

confidence: 96%

“…2,7,9,10,13,14,21 The proposed antenna has a smaller overall size and achieves a far wider IBW and ARBW than. 3,24 As for, 23 the overall size is smaller than the proposed antenna and the IBW and ARBW are wide. However, the peak gain is low.…”

Section: Design Of Amc Array Reflectormentioning

confidence: 98%

“…Although the design of CP antennas in an array has many advantages, this kind of antenna tends to have a high profile and bidirectional radiation 12 . To realize a unidirectional pattern and reducing the antenna profile, using the AMC structure as a reflector has been reported in 3,13,21 . The in‐phase reflection property of AMC can break the λ/4 limit between the antenna and the floor, thus reducing the antenna profile 3,9 .…”

Section: Introductionmentioning

confidence: 99%

“…As the circularly polarized (CP) wave excited by the CP antenna has the advantages of reducing multipath interferences and immune to faraday rotation in the ionosphere, there is a continuous need to design a broadband CP antenna that can cover multiple communication systems. [1][2][3][4][5][6][7][8][9][10] Many kinds of broadband CP antennas have been reported, such as the substrate integrated waveguide slot antenna, 4 dipole antenna, 5 printed monopole antenna, 8 and helical antenna. 10 Even though a CP antenna with a single radiator element has the advantage of small size, it usually cannot achieve a good axial beam radiation (main beam at boresight direction +z = 0 ) across the entire CP bandwidth.…”

Section: Introductionmentioning

confidence: 99%

“…12 To realize a unidirectional pattern and reducing the antenna profile, using the AMC structure as a reflector has been reported in. 3,13,21 The in-phase reflection property of AMC can break the λ/4 limit between the antenna and the floor, thus reducing the antenna profile. 3,9 However, it is still a challenging task to design and applies the AMC structure into a CP antenna with ultrawide CP bandwidth, unidirectional radiation, and wideband axial beam radiation characteristics.…”

Section: Introductionmentioning

confidence: 99%

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A low‐profile ultrawideband circularly polarized slot antenna array based on artificial magnetic conductor array reflector

Zhang

Xing

et al. 2022

Int J RF Mic Comp-Aid Eng

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A broadband circularly polarized (CP) slot antenna unit that is composed of a sector‐shaped radiator and an irregular pentagon slot ground plane is initially investigated. The CP characteristics are realized based on unbalanced feeding and loading of irregular slot structure. To increase the gain and yield ultrawideband operation, a 2 × 2 antenna array with a sequential rotational feeding method is introduced. To further reduce the total profile of the proposed antenna array to 0.15λ0, an artificial magnetic conductor array reflector is loaded between the antenna array and the feeding network. The measured 10‐dB impedance bandwidth of the proposed antenna array was 82.6% (8.31–20.0 GHz), and its corresponding CP bandwidth was 65.4% (8.61–16.98 GHz), and the radiation efficiency of the antenna is also higher than 80%. Besides exhibiting very good axial beams across the wide CP bandwidth, a peak gain of up to 11.1 dBic is also achieved. Thus, it is suitable for X‐band and Ku‐band satellite communication applications.

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Section: Resultsmentioning

confidence: 96%