Microstrip antenna miniaturization with fractal EBG and SRR loads for linear and circular polarizations

Sedghi, Mohammad; Naser‐Moghadasi, Mohammad; Zarrabi, Ferdows B.

doi:10.1017/s1759078716000726

Cited by 21 publications

(10 citation statements)

References 32 publications

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“…The antenna achieves a simulated maximum peak gain of 10.9 dB at 2.4 GHz. Based on Table 2, the designed antenna has the best compactness and higher number of bands than [8,11,[12][13][14]16].…”

Section: Resultsmentioning

confidence: 99%

“…In [10], a slot antenna with SRR was designed for WLAN applications with a large size of 40 × 40 × 1.6 mm 3 . The combination of a Split Ring Resonator (SRR) and an Electromagnetic Band Gap (EBG) with a fractal concept is used for antenna miniaturization with a complex structure, which resonates at 2.5 GHz and 5.9 GHz [11]. A low RCS circularly and linearly polarized slot antenna was designed only for dual-band operations by using an L-shaped copper strip and a CSRR-SRR array [12].…”

Section: Introductionmentioning

confidence: 99%

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Compact Modified Hexagonal Spiral Resonator Based Tri-Band Patch Antenna With Octagonal Slot for Wi-Fi/Wlan Applications

Gunavathi¹

2020

PIER C

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In this paper, a compact modified hexagonal spiral resonator-based tri-band patch antenna with an octagonal slot is presented for Wi-Fi/WLAN applications. The proposed antenna is designed on a low-cost FR4 substrate with a dielectric constant of ε r = 4.4 and a loss tangent of δ = 0.02. The tri-band operations have been achieved by a Modified Hexagonal Complementary Spiral Resonator (MHCSR) and an Octagonal slot. The loading of the MHCSR at the bottom of the substrate is to cover the 900 MHz (IEEE 802.11ah) band, and an Octagonal slot on top of the 5 GHz (IEEE 802.11a/h/j/n/ac/ax) rectangle patch is to cover the 2.4 GHz (IEEE 802.11b/g/n/ax) band. The prototype of the proposed antenna is fabricated and tested to validate the simulation results. The measured impedance bandwidth is 105 MHz at 900 MHz, 160 MHz at 2.4 GHz, and 180 MHz at 5 GHz. The designed antenna has a compact size with overall dimensions of 0.054λ 0 × 0.066λ 0 × 0.0048λ 0 (18 × 22 × 1.6 mm 3). The 82.2% reduction in size has been accomplished as compared to a conventional patch antenna at 900 MHz (lower resonance frequency). The waveguide setup method has been used to validate a negative permittivity property of the MHCSR. The parametric analysis of the proposed antenna has been carried out using the Ansoft HFSS19 software.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact Modified Hexagonal Spiral Resonator Based Tri-Band Patch Antenna With Octagonal Slot for Wi-Fi/Wlan Applications

Gunavathi¹

2020

PIER C

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“…Khan et al [11] made a survey on patch antenna miniaturization techniques including reshaping the antenna, material loading, folding, and shorting, introducing defects in the ground plane and slots. Various antenna miniaturization methods based on Single Ring Spilt Ring Resonator (SRR), Double Ring SRR, Complementary SRR (CSRR) , and fractals loaded were discussed [12][13][14]. Further, the wide-band antenna proposed by Sharma and Sharma [15] was based on a hybrid fractal slot with partial ground plane.…”

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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“…Khan et al 10 presented a review on miniaturization techniques of patch antenna. Sedghi et al 11 suggested a miniaturized antenna based on fractal EBG and SRR structure. Ao et al 12 designed parasitic patch loaded with tapered patch connected by a lumped resistor for a miniaturization of vivaldi antenna.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized antenna using DGS and meander structure for dual‐band application

Swetha

Naidu

2020

Micro & Optical Tech Letters

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In this article, the design of a miniaturized planar antenna using defected ground structure (DGS) and meander line structure for C and X‐band applications is presented. A novel star‐shaped and a rectangle DGS created on the ground plane of lambda/4 fed planar antenna and its effect on the size reduction performance is analyzed. Initially, a simple basic antenna (antenna‐1) operates at 14.9 GHz with a reflection coefficient (S11) of −34.56 dB is designed. To achieve miniaturization of 51.27% and 36.77% an antenna is designed by DGS and meander line structure (antenna‐2), which operates at dual‐band frequencies 7.26 and 9.42 GHz with a reflection coefficient (S11) of −32.91 and −22.84 dB, respectively, is presented. The suggested antenna is fabricated on a 1.6 mm thickness of FR4 Epoxy substrate to achieve a reasonable peak gain and directivity of 3.64 and 5.94 dBi at 7.26 GHz, 3.23 and 5.44 dBi at 9.42 GHz, respectively, is achieved.

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Microstrip antenna miniaturization with fractal EBG and SRR loads for linear and circular polarizations

Cited by 21 publications

References 32 publications

Compact Modified Hexagonal Spiral Resonator Based Tri-Band Patch Antenna With Octagonal Slot for Wi-Fi/Wlan Applications

Compact Modified Hexagonal Spiral Resonator Based Tri-Band Patch Antenna With Octagonal Slot for Wi-Fi/Wlan Applications

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

Miniaturized antenna using DGS and meander structure for dual‐band application

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