A Novel Configuration of a Miniature Printed Antenna Array Based on Defected Ground Structure

Ghaloua, Ahmed; Zbitou, Jamal; Latrach, Mohamed; Tajmouati, Abdelali; Errkik, Ahmed

doi:10.22266/ijies2019.0228.21

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…Additionally, Suvarna et al [17] introduces a new pi-shaped DGS with three annular rings which is etched in the ground plane. Furthermore, Ghaloua et al [18] propose the utilization of a new geometric DGS on an FR-4 substrate with a relative permittivity equal to 4.4, a thickness of 1.6 mm, and a loss tangent of 0.025 to downsize the antenna arrays.…”

Section: Defected Ground Structurementioning

confidence: 99%

Design of a Low Sidelobe Feed Network Based on the Louver-Shaped Defected Ground Structure

Zhang,

2024

International Journal of Antennas and Propagation

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In this paper, a low sidelobe feeding network has been developed utilizing the louver-shaped defected ground structure (DGS). By adjusting the louver-shaped DGS, the output amplitude and phase of the corresponding ports can be altered, minimizing deviations from theoretical values. This enables antenna arrays equipped with this feeding network to more easily achieve low sidelobe performance. The impact of the louver-shaped DGS on the amplitude and phase of each port in the power divider within the feeding network is analyzed, and a 16-channel feeding network incorporating the louver-shaped DGS has been designed, fabricated, and then measured. The test results indicate that the performance of the line-feeding network is effectively improved by designing and adjusting the louver-shaped DGS. Through the debugging procedure, the amplitude deviation of the feeding network has been reduced from ±0.45 dB to ±0.2 dB, while the phase deviation of the feeding network has been reduced from ±8° to ±2.5°, and the maximum value of the first sidelobe has been reduced from −24.2 dB to −28.1 dB.

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Section: Defected Ground Structurementioning

confidence: 99%

Design of a Low Sidelobe Feed Network Based on the Louver-Shaped Defected Ground Structure

Zhang,

2024

International Journal of Antennas and Propagation

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“…Several configurations of DGS have been exploited to miniaturize antenna or rather antenna array. With the introduction of new DGS structures in the ground plane of the antenna without altering these geometric dimensions, the array characteristics, such as gain, radiation efficiency and bandwidth are ameliorated while still retaining the same volume of the patch antenna [24], [25].…”

Section: Introductionmentioning

confidence: 99%

A novel wideband circularly-polarized microstrip antenna array based on DGS for wireless power transmission

Ouberri

Tajmouati²,

Chahboun³

et al. 2022

TELKOMNIKA

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The requirement for applications operating at a variety of frequencies in a unified wireless device has greatly enhanced in recent years. For this purpose, multi-functional wireless components are essential. This paper presents a new design of a wideband circularly-polarized microstrip antenna array with defected ground structure (DGS). A previous design was introduced which cover the C-band at 5.8 GHz and operates in the industrial scientific medical (ISM) band for wireless communication applications. The proposed antenna has excellent performances which include good input impedance matching with a fed of the circular polarization at 5.8 GHz. The proposed design is validated and optimized by adding a new design of defected ground structure. This aperture geometry enables the antenna to operate in a wideband. The obtained results show that the modified antenna has a good performance in terms of return loss, bandwidth, gain and radiation pattern and demonstrate that the proposed antenna offers a good solution for multi-standard wireless communication applications.

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“…For Vivaldi antenna miniaturization, Ao et al [16] designed a tapered patch using parasitic elements which is connected by a lumped resistor. Defected Ground Structure (DGS) has been used to miniaturize the patch and its array elements [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

A Tri-Band Miniaturized Antenna Using Fractal Defected Ground Structure for C/X and Ku-Band Applications

Suvarna¹,

Ramamurthy²,

Vardhan³

2022

PIER M

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In this article, a miniaturized antenna with a Koch fractal defected ground structure (KFDGS) is proposed for C/X and Ku-band applications. The performance of an inset-fed lambda/2 patch antenna is examined using an iterated KFDGS etched on the ground plane. A conventional antenna operated at 16 GHz with a return loss of −34.31 dB is constructed, followed by a tri-band miniaturized antenna operating at 6.35, 9, and 13.05 GHz with a return loss of −22.41, −25.05, and −28.54 dB in order to achieve miniaturization of 60.31%, 43.75%, and 18.43%, respectively. An antenna is designed on a Roger RT Duroid substrate, fabricated, and tested with dimensions of 12×14×0.8 mm 3 , and its impact on reduction in size performance has been evaluated with measured peak directivity and gain of 3.07 and 2.80 dBi at 6.35 GHz, 4.78 and 4.65 dBi at 9 GHz, and 7.73 and 7.76 dBi at 13.05 GHz, respectively. A good agreement is found between the measurements and simulations.

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A Novel Configuration of a Miniature Printed Antenna Array Based on Defected Ground Structure

Cited by 7 publications

References 4 publications

Design of a Low Sidelobe Feed Network Based on the Louver-Shaped Defected Ground Structure

Design of a Low Sidelobe Feed Network Based on the Louver-Shaped Defected Ground Structure

A novel wideband circularly-polarized microstrip antenna array based on DGS for wireless power transmission

A Tri-Band Miniaturized Antenna Using Fractal Defected Ground Structure for C/X and Ku-Band Applications

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