Circular Polarization Fractal Koch microstrip patch Antenna using single-fed EM coupled ring Resonators

Yusop, Mohamad; Rahim, M. K. A.; Ismail, M. F.; Wahid, A.

doi:10.1109/apace.2010.5720101

Cited by 13 publications

(12 citation statements)

References 5 publications

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“…A typical antenna with simple single feed configurations is limited because of narrow AR bandwidth, within the range of 1% . Several methods are proposed to alleviate this problem, including utilization of coplanar waveguide (CPW) feed, additional slots, coupling strip, thickening of the substrate, and fractal patches …”

Section: Introductionmentioning

confidence: 99%

“… and achieved an AR bandwidth of about 4.7% and 17.7%, respectively. Fractal structures are able to achieve AR bandwidths of up to 2%, 22.5%, and 0.78% …”

Section: Introductionmentioning

confidence: 99%

“…, and typically require more complex designs, this work aims to propose a simple, compact, low‐cost, and wideband CP antenna. To ensure simplicity and compactness, a single‐feed electromagnetically coupled techniques chosen based on its proven capability in exciting CP behavior . Researchers in Refs.…”

Section: Introductionmentioning

confidence: 99%

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A simple wideband electromagnetically fed circular polarized antenna for energy harvesting

Adam

Yasin

Soh

et al. 2017

Microw. Opt. Technol. Lett.

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A novel of wideband circular polarization (CP) antenna with high gain that is suitable to harvest energy is proposed. In this article, our objective is to design an antenna that is capable of fully harvesting ambient RF energy. A survey on the feasibility of scavenging for RF energy was conducted through power density measurement in an urban area. Using the results, a CP antenna was designed to cover the frequency band from the largest RF contributors, ranging from 1.73 to 2.61 GHz in GSM1800, UMTS, WiMAX and the unlicensed industrial, scientific, and medical (ISM) bands. Hence, a simple single feed electromagnetic (EM) coupled circularly polarized antenna with high gain is presented. The wideband CP is achieved by implementing EM coupled feed with a defected ground plane structure. Experimental results showed the antenna achieved an axial ratio bandwidth of 25% with respect to 2.08 GHz center frequency. Furthermore, the antenna exhibits broad impedance bandwidth of 32.77% with the measured peak gain is 8.7 dBic at 2.05 GHz. The proposed antenna structure is simple and low cost with a size of 0.462 λo and wide 22.1% axial ratio bandwidth.

show abstract

Section: Introductionmentioning

confidence: 99%

“… and achieved an AR bandwidth of about 4.7% and 17.7%, respectively. Fractal structures are able to achieve AR bandwidths of up to 2%, 22.5%, and 0.78% …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A simple wideband electromagnetically fed circular polarized antenna for energy harvesting

Adam

Yasin

Soh

et al. 2017

Microw. Opt. Technol. Lett.

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show abstract

“…To increase the working frequency, an iteration of the antenna dimension should be done by minimizing the patch size. The dimension of fractal microstrip antenna is given by [13] can be seen at equation (6), (7) and (8) . In this study, the type of fractal used to optimize the antenna is the sierpenski carpet.…”

Section: Antenna Designmentioning

confidence: 99%

“…One way to get compact design of microstrip antenna is using fractal method and by using fractal method the dimensions of the antenna can be reduced and become more compact. There are several methods of fractal being developed based on its geometry, such as Hilbert [4], Sierpinski [5], Koch [6], and Minkowski [7].…”

Section: Introductionmentioning

confidence: 99%

Design and Realization of Compact Microstrip Antenna Using Fractal Sierpenski Carpet For Wireless Fidelity Application

Alam

Surjati

Ferawan

2018

IJEEI

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This paper proposed new design of compact microstrip antenna using fractal sierpenski carpet method for Wireless Fidelity application at working frequency of 2400 MHz. The proposed antenna using FR4 Epoxy with (εr) of 4.3, substrate thickness (h) of 1.6 mm and loss tangent (tan δ) of 0.0265. Antenna is designed using AWR Microwave Office software.The sierpenski carpet method is used in order to reduce the dimensions of the microstrip antenna to become more compact. From the measurement results obtained reflection coefficient value-26.077 dB, VSWR 1.104 at working frequency of 2400 MHz frequency with a bandwidth of 127 MHz (2338 MHz-2465 MHz). Beside that, by using fractal sierepenski carpet method, microstrip antenna dimension was reduced until 47.80% compared to conventional rectangular microstrip antenna.

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Bandpass filter based on novel‐coupled half‐wavelength microstrip ring resonators

Olokede

Zubir

Ain

et al. 2016

Micro & Optical Tech Letters

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A microstrip bandpass filter (BPF) based on centre‐coupled cylindrical microstrip ring resonator (MRR) for wireless application in ISM frequency band of applications is presented. The proposed is a combination of two identical bended half‐wavelength (λ/2) MRR, and centre‐coupled by an end‐coupled transmission feed line. The equivalent circuits of the MRR, the end‐coupled feed, and the effects of various spacing between them were investigated based on the even‐ and odd‐mode theory. The mechanism of resonant mode splitting is investigated with the possibility of enhancing the coupling effect, while suppressing spurious resonances in order to achieve sharp rejection skirts. Findings indicates that the proposed equivalent circuit are influenced by capacitances due to resonator – transmission feed line gap (d), the gap between each ring (g), the feed line gap (i), the radius of MRR (r), and the resonator head (m). The operation mechanism of the structure was investigated first theoretically to the intent of design a circuit model, then using numerical 3D EM based on finite integration technique (FIT) method, and finally, through 2D equivalent circuit modeller. The derived equivalent circuit model have been validated both by analytical formulae and numerical simulations. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:911–918, 2016

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Circular Polarization Fractal Koch microstrip patch Antenna using single-fed EM coupled ring Resonators

Cited by 13 publications

References 5 publications

A simple wideband electromagnetically fed circular polarized antenna for energy harvesting

A simple wideband electromagnetically fed circular polarized antenna for energy harvesting

Design and Realization of Compact Microstrip Antenna Using Fractal Sierpenski Carpet For Wireless Fidelity Application

Bandpass filter based on novel‐coupled half‐wavelength microstrip ring resonators

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