Circularly Polarized Bandwidth-Enhanced Crossed Dipole Antenna with a Simple Single Parasitic Element

Tran, Huy Hung; Park, Ikmo; Nguyen, Truong Khang

doi:10.1109/lawp.2017.2676165

Cited by 72 publications

(61 citation statements)

References 16 publications

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“…By comparing the information from the table, it is clear that the proposed antenna is more competitive than those in Refs. , because of its wider IBW and ARBW. Compared to the antennas in Refs.…”

Section: Resultsmentioning

confidence: 99%

“…One bowtieshaped element helps the crossed bowtie dipoles to generate additional resonance. 13 A crossed bowtie dipole loading with parasitic cross-slots and eight parasitic patches in Ref. 14 obtain a broad IBW of 93.1% and a good ARBW of 90.9%.…”

Section: Introductionmentioning

confidence: 97%

“…The antenna with a novel composite cavity and elliptical dipoles achieves a wider IBW of 106.5% and an ARBW of 96.6%, although it has a larger size. One bowtie‐shaped element helps the crossed bowtie dipoles to generate additional resonance . A crossed bowtie dipole loading with parasitic cross‐slots and eight parasitic patches in Ref.…”

Section: Introductionmentioning

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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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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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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“…In order to simplify the feed structure, a single feed CP crossed dipole antenna (0.42 λ 0 × 0.42 λ 0 × 0.25 λ 0 ) is originally presented in Reference , which exhibits the IBW of 30.7% and the 3‐dB ARBW of 15.6%. 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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“…In order to redirect a half of the radiation into the opposite direction, the crossed-dipole antennas are generally horizontally placed on a metallic reflector [14]. In addition, the operational bandwidth of conventional crossed dipoles can be broadened by loading parasitic elements [15,16] or by using an enlarged dipole [17,18]. However, the crossed-dipole antennas equipped with a metallic reflector suffers from a large profile, which is approximately λ/4.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth-Enhanced Low-Profile Antenna with Parasitic Patches

Kedze

2017

International Journal of Antennas and Propagation

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This paper presents low-profile broadband antennas, which are composed of four parasitic patches placed between planar radiators and a perfect electric conductor ground plane. Two types of planar radiators, a conventional dipole and a crossed dipole, are employed to produce linearly polarized (LP) and circularly polarized (CP) radiations, respectively. The radiator and parasitic patches are realized on thin substrates to lower the cost. Owing to the presence of parasitic patches, the antenna performance improves in terms of profile reduction, resonant frequency decrease, and bandwidth enhancement. These improvements are discussed and confirmed computationally and experimentally. The LP design with the overall dimensions of 120 mm × 120 mm × 16.3 mm (0.64λ 0 × 0.64λ 0 × 0.087λ 0 at 1.6 GHz) has a |S 11 | < −10 dB bandwidth of 1.465-1.740 GHz (17.2%), a broadside gain of 8.5-8.8 dBi, and a radiation efficiency > 96%. The CP design, which has the same physical size as the LP case, has a |S 11 | < −10 dB bandwidth of 1.388-1.754 GHz (23.3%), a 3 dB AR (axial ratio) bandwidth of 1.450-1.685 GHz (15.0%), a right-hand CP broadside gain of 7.8-8.7 dBic, and a radiation efficiency > 90%.

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Circularly Polarized Bandwidth-Enhanced Crossed Dipole Antenna with a Simple Single Parasitic Element

Cited by 72 publications

References 16 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

Bandwidth-Enhanced Low-Profile Antenna with Parasitic Patches

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