Broadband Circularly Polarized Crossed Bowtie Dipole Antenna Loaded With Parasitic Elements

Feng, Guirong; Chen, Lei; Wang, Xinwei; Xue, Xingsi; Shi, Xiaowei

doi:10.1109/lawp.2017.2777442

Cited by 86 publications

(61 citation statements)

References 13 publications

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“…Compared to the antennas in Refs. , the proposed antenna has a low‐profile structure. Additionally, the antenna has an outstanding 3 dB gain bandwidth.…”

Section: Resultsmentioning

confidence: 99%

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Design of broadband circularly polarized antenna via loading coupled rotated dipoles

Zhao

Wang

et al. 2018

Micro & Optical Tech Letters

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A broadband circularly polarized (CP) antenna with coupled rotated dipoles is presented. A pair of coupled rotated dipoles and four coupled pads are the key components of the antenna to expand the working bandwidth. The pair of coupled dipoles, sequentially rotating around the crossed dipole, is employed to induce new resonance to enhance the operation bandwidth. To further improve the bandwidth, four coupled pads grounded by metal posts are introduced to generate an additional resonance. The simulated prototype was fabricated and measured to confirm the correctness of the design. The results demonstrate that the antenna obtains a broad impedance bandwidth (IBW) of 95.0% (1.16‐3.26 GHz) for |S11| < −10 dB and a wide axial ratio bandwidth (ARBW) of 85.5% (1.24‐3.09 GHz). More importantly, it has a good unidirectional right‐hand circular polarized (RHCP) radiation pattern with an excellent performance in 3 dB gain bandwidth of 78.0% (1.25‐2.85 GHz).

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“…Compared to the antennas in Refs. , the proposed antenna has a low‐profile structure. Additionally, the antenna has an outstanding 3 dB gain bandwidth.…”

Section: Resultsmentioning

confidence: 99%

“…A crossed bowtie dipole loading with parasitic cross‐slots and eight parasitic patches in Ref. obtain a broad IBW of 93.1% and a good ARBW of 90.9%. Besides, different feeding technique can be studied for wide bandwidth like Г‐shaped and center‐slot feeding.…”

Section: Introductionmentioning

confidence: 99%

Design of broadband circularly polarized antenna via loading coupled rotated dipoles

Zhao

Wang

et al. 2018

Micro & Optical Tech Letters

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“…Next, a crossed dipole is designed with a simple single parasitic element to enhance the IBW of 60.4% and the 3‐dB ARBW of 58.6% in Reference . Furthermore, Reference enhances the IBW to 93.1% and the ARBW to 90.9% by loading a plurality of parasitic elements.…”

Section: Introductionmentioning

confidence: 99%

A wideband circularly polarized crossed magneto‐electric dipole

Zhao

Zhang

Yang

et al. 2020

Int J RF Microw Comput Aided Eng

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A novel wideband crossed magneto-electric (ME) dipole for circularly polarized (CP) radiation is proposed in this paper. The proposed antenna consists of a crossed dipole, four parasitic elements, and two pairs of folding metal plates (magnetic dipole). The parasitic elements and magnetic dipole are employed to enhance the axial ratio bandwidth (ARBW). The antenna size is 0.51λ 0 × 0.51λ 0 × 0.33λ 0 , where λ 0 is the corresponding free-space wavelength at the center frequency. A prototype antenna is fabricated and tested. The experiment results depict that the impedance bandwidth (IBW) for voltage standing wave ratio < 2 is 79.2%(2.5-5.78 GHz) and the 3-dB axial ratio bandwidth (ARBW) is 72.5% (2.7-5.77 GHz). At the same time, good CP characteristics and stable symmetrical radiation patterns can be obtained across the operation bandwidth. K E Y W O R D S circularly polarized, crossed dipole, magneto-electric dipole, wideband

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“…However, antennas are generally mounted on walls or vehicles, thus antennas with unidirectional radiation patterns are of interest in these circumstances. There are several approaches to design the UWB CP antennas with unidirectional beam, including multifeed patch array antennas, Archimedean spiral antennas, reflectarray antenna, and tapered structures …”

Section: Introductionmentioning

confidence: 99%

Ultrawideband circularly polarized antenna with dual band‐notched characteristics

Tran

Park

2019

Int J RF Microw Comput Aided Eng

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This article presents an ultrawideband (UWB) crossed dipole antenna with circularly polarized (CP) and dual band‐notched characteristics. The proposed design is based on two orthogonal tapered dipoles for UWB CP operation and a square‐shaped cavity for high broadside gain over the entire operating bandwidth (BW). To generate dual band‐notched characteristics, two separated slots are inserted into each dipole's arm. This antenna yields measured impedance BW of 100% (3.2‐9.6 GHz) with dual‐band rejection centered at 5.2 and 5.8 GHz. Correspondingly, dual rejected bands are also observed in the original UWB CP band, which ranges from 3.2 to 8.2 GHz. Additionally, the proposed antenna exhibits high broadside gains better than 6.2 dBic and radiation efficiency greater than 82%.

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Broadband Circularly Polarized Crossed Bowtie Dipole Antenna Loaded With Parasitic Elements

Cited by 86 publications

References 13 publications

Design of broadband circularly polarized antenna via loading coupled rotated dipoles

Design of broadband circularly polarized antenna via loading coupled rotated dipoles

A wideband circularly polarized crossed magneto‐electric dipole

Ultrawideband circularly polarized antenna with dual band‐notched characteristics

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