Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators

Kedze, Kam Eucharist; Wang, Heesu

doi:10.1109/access.2018.2868989

Cited by 27 publications

(7 citation statements)

References 27 publications

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“…The proposed composite antenna configuration of the printed dipole with SRRs is shown in Fig. 1 [16]. The dipole is printed on the top and bottom sides of a thin Rogers RO5880 dielectric substrate (ε r = 2.2, tanδ = 0.0009, and h = 0.508 mm).…”

Section: Antenna Geometry and Performancementioning

confidence: 99%

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Effects of Split Position on the Performance of a Compact Broadband Printed Dipole Antenna with Split-Ring Resonators

Kedze

Wang

2019

J Electromagn Eng Sci

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This paper presents the effects of the position of the split of a split-ring resonator (SRR) on the performance of a composite broadband printed dipole antenna. The antenna is made of two printed dipole arms enclosed by two rectangular and identically printed SRRs. One dipole arm and the SRR are printed on the top side of the substrate, while the other dipole arm and SRR are printed on the bottom side of the same substrate. By changing the position of the split on the SRR, different antenna characteristic values are obtained, namely, for impedance bandwidth and radiation patterns. The split position is thus a critical parameter in antenna design, because it influences the antenna's major performance immensely. Different split positions and their consequences for antenna performance are demonstrated and discussed. The antenna generates linearly polarized radiations, and it is computationally characterized for broadband characteristics. The optimized compact antenna has overall dimensions of 9.6 mm × 74.4 mm × 0.508 mm (0.06λ × 0.469λ × 0.0032λ at 1.895 GHz) with a measured fractional bandwidth of 60.31% (1.32 to 2.46 GHz for |S11| < -10 dB) and a radiation efficiency of >88%. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

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Section: Antenna Geometry and Performancementioning

confidence: 99%

“…Simulated and measured broadside gain of the optimized dipole antenna loaded with SRRs. Measured and simulated radiation patterns of the optimized dipole antenna loaded with SRRs at 1.42 GHz (a), 1.8 GHz (b), and 2.33 GHz (c)[16].…”

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confidence: 99%

Effects of Split Position on the Performance of a Compact Broadband Printed Dipole Antenna with Split-Ring Resonators

Kedze

Wang

2019

J Electromagn Eng Sci

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“…On the other hand, subwavelength resonators namely, epsilon-negative (ENG) or munegative (MNG) or dual-negative (DNG) metamaterials are also used as parasitic elements to enhance the performance of antenna systems. Moreover, the partial loading of subwavelength resonators with half wavelength resonators can generate additional resonance at low frequency [16][17][18]. For example, a lower resonant mode is achieved by the field interaction of a small loop and two concentric split ring resonators (SRR) where the small loop acts as a RF radiator and the SRRs act as magnetic coupling resonating structure [16].…”

Section: Introductionmentioning

confidence: 99%

“…Further, the size of the inner closed ring is shortened to get wideband property [17]. In addition, a center fed half-wavelength dipole printed at both sides of a thin substrate is encircled by two identical SRRs to exhibit compact and wideband property [18]. Metamaterial structures are also used as composite right/left-handed transmission lines in antenna designs to generate zero and negative order resonances by means of which the size reduction is achieved [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Metamaterial-Based Compact Antenna with Defected Ground Structure for 5G and Beyond

Rahman¹,

Islam²,

Islam³

et al. 2022

Computers, Materials &Amp; Continua

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In this paper, a unit cell of a single-negative metamaterial structure loaded with a meander line and defected ground structure (DGS) is investigated as the principle radiating element of an antenna. The unit cell antenna causes even or odd mode resonances similar to the unit cell structure depending on the orientation of the microstrip feed used to excite the unit cell. However, the orientation which gives low-frequency resonance is considered here. The unit cell antenna is then loaded with a meander line which is parallel to the split bearing side and connects the other two sides orthogonal to the split bearing side. This modified structure excites another mode of resonance at high frequency when a meander line defect is loaded on the metallic ground plane. Specific parameters of the meander line structure, the DGS shape, and the unit cell are optimized to place these two resonances at different frequencies with proper frequency intervals to enhance the bandwidth. Finally, the feed is placed in an offset position for better impedance matching without affecting the bandwidth The compact dimension of the antenna is 0.25 λL × 0.23 λL × 0.02 λL, where λL is the free space wavelength with respect to the center frequency of the impedance bandwidth. The proposed antenna is fabricated and measured. Experimental results reveal that the modified design gives monopole like radiation patterns which achieves a fractional operating bandwidth of 26.6%, from 3.26 to 4.26 GHz for |S11|<−10 dB and a pick gain of 1.26 dBi is realized. In addition, the simulated and measured crosspolarization levels are both less than −15 dB in the horizontal plane.

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“…The Split Ring Resonators (SRRs) are also widely utilized for antenna design compactness [25,26]. Antenna compactness can be achieved by loading m-negative material in the antenna [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Surface Mountable Compact Printed Dipole Antenna for GPS/Wimax Applications

Patel¹,

Upadhyaya²

2021

PIER Letters

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A low-profile, electrically compact, and cost-effective antenna for wireless communication is presented. The antenna comprises self-complementary dipole elements on each side of the resonator surface. The dipole is excited using co-axial feed for an efficient impedance matching. An electrically compact antenna has dimensions of 0.13λ × 0.26λ at the lower frequency. The dipole covers 1.57 GHz and 3.65 GHz frequencies offering the measured impedance bandwidth in the order of 1.83% and 2.30%, respectively. The self-complementary structure of the dipole having multiple coupling elements permits adequate tuning of the antenna on target frequencies. The resonant modes of the antenna can be tuned by merely modifying the position of the complementary structure on each side of the dipole. The engineered slots in the dipole permit further fine-tuning. The antenna presents gain in the order of 0.71 dBi and 1.27 dBi and stable radiation patterns for the two frequencies.

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Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators

Cited by 27 publications

References 27 publications

Effects of Split Position on the Performance of a Compact Broadband Printed Dipole Antenna with Split-Ring Resonators

Effects of Split Position on the Performance of a Compact Broadband Printed Dipole Antenna with Split-Ring Resonators

Metamaterial-Based Compact Antenna with Defected Ground Structure for 5G and Beyond

Surface Mountable Compact Printed Dipole Antenna for GPS/Wimax Applications

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