Metamaterial Embedded Wearable Rectangular Microstrip Patch Antenna

Joshi, Jayant G.; Pattnaik, Shyam S.; Devi, Swapna

doi:10.1155/2012/974315

Cited by 46 publications

(47 citation statements)

References 21 publications

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“…This capacitance of SRR is sufficiently large to match with the inductance of the patch antenna array, which leads to the reduction in mutual coupling between the elements of the array. The mutual inductance between SRRs is calculated as S 2 = 1.17 nH using Equation (3) [18,19].…”

Section: Equivalent Circuit Analysis and Theoretical Discussionmentioning

confidence: 99%

SRR Inspired Microstrip Patch Antenna Array

Arora¹,

Pattnaik²,

Baral³

2015

PIER C

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Abstract-This paper presents a novel approach for bandwidth enhancement and gain improvement of a microstrip patch antenna array for IEEE 802.16a 5.8 GHz Wi-MAX applications. A split ring resonator (SRR) has been designed to load the microstrip patch antenna array. The unloaded antenna array resonates at 5.8 GHz with gain of 4.3 dBi and bandwidth of 425 MHz, whereas when loaded with split ring resonator the gain approaches to 5.7 dBi and bandwidth increases to 610 MHz which corresponds to bandwidth enhancement of 3%. The electrical dimension of the patch is 0.23λ × 0.3λ.

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Section: Equivalent Circuit Analysis and Theoretical Discussionmentioning

confidence: 99%

SRR Inspired Microstrip Patch Antenna Array

Arora¹,

Pattnaik²,

Baral³

2015

PIER C

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“…There also exists some mutual inductance between the neighboring SRRs (M 3 ) and neighboring patches (M 4 ), whose magnitudes are calculated using Equations (8) and (9) [28], and are found to be 0.943 nH and 1.589 nH, respectively.…”

Section: Equivalent Circuit Modelmentioning

confidence: 99%

“…Since then, due to their novel properties, they have been deeply studied as potential artificial materials for large number of applications in the microwave and optical region [14,15]. Several configurations of metamaterial have been used by different researchers [16][17][18][19][20][21][22][23]. In [17], Joshi et al deigned a MSRR loaded dual-band microstrip patch antenna to obtain size reduction.…”

Section: Introductionmentioning

confidence: 99%

“…In [19], Chaimool et al covered a conventional patch antenna with metamaterial superstrate, but dimensions of the ground plane used in this antenna is approximately seven times the size of radiating patch, thus making the size of loaded patch antenna quite large. Moreover, all the research discussed in [16][17][18][19][20] is limited to single radiating patch only.…”

Section: Introductionmentioning

confidence: 99%

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SRR Superstrate for Gain and Bandwidth Enhancement of Microstrip Patch Antenna Array

Arora¹,

Pattnaik²,

Baral³

2017

PIER B

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Abstract-This article presents a microstrip fed patch antenna array, loaded with metamaterial superstrate. An unloaded antenna array resonates at IEEE 802.16a 5.8 GHz Wi-MAX band with gain of 4.3 dBi and bandwidth of 425 MHz. However, when the same array is loaded with a metamaterial superstrate, composed of a pair of Split Ring Resonators (SRR), there is simultaneous gain and bandwidth improvement to 8 dBi and 680 MHz, respectively, which corresponds to gain improvement by 86% and bandwidth enhancement of 60%. The fabrication of this proposed antenna array is done, and its simulated and measured results are compared. Equivalent circuit model of this composite structure has been developed and analyzed. The electrical dimension of the patch is 0.23λ × 0.3λ.

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“…The antenna is metamaterial loaded using SRR technique [13]. The gap (having dimension = 1 mm) is created in outermost and middle rings to create an SRR structure on the fractal geometry.…”

Section: Antenna Designmentioning

confidence: 99%

Square-Shaped Fractal Antenna Under Metamaterial Loaded Condition for Bandwidth Enhancement

Mishra¹,

Pattnaik²,

Dhaliwal³

2017

PIER C

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Abstract-In this paper, a metamaterial loaded square-shaped fractal antenna with two iterations is presented and discussed. A metamaterial loading consists of split ring resonators (SRRs) which enhances the bandwidth of the antenna keeping the dimensions and size of the antenna same. The square-shaped fractal antenna, which is in the form of three concentric rings, was simulated and fabricated, and the results were shown and discussed. The antenna resonates at three distinct frequency bands 4.3719 GHz, 7.7437 GHz and 10.6374 GHz with the gains of 1.1974 dB, 4.2745 dB and 4.7233 dB, respectively for resonant frequencies. The bandwidths for the antenna are 185 MHz, 198 MHz and 386 MHz for distinct resonant frequencies. The antenna is fabricated using an FR-4 substrate, and the measured resonant frequencies are 4.08 GHz, 7.545 GHz and 10.24 GHz. In metamaterial loading condition, the antenna resonates at 4.0105 GHz, 6.8474 GHz and 8.0632 GHz with bandwidths of 636 MHz, 347 MHz and 1.33 GHz at resonant frequencies. The appreciable bandwidth is achieved in such a small antenna without changing dimensions and size of the antenna. The simulated, experimental results and comparison are also presented in this paper. The results show that the proposed method can be used to design high bandwidth and compact fractal microstrip patch antennas without increasing dimensions.

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Metamaterial Embedded Wearable Rectangular Microstrip Patch Antenna

Cited by 46 publications

References 21 publications

SRR Inspired Microstrip Patch Antenna Array

SRR Inspired Microstrip Patch Antenna Array

SRR Superstrate for Gain and Bandwidth Enhancement of Microstrip Patch Antenna Array

Square-Shaped Fractal Antenna Under Metamaterial Loaded Condition for Bandwidth Enhancement

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