Compact S-Shaped EBG Structures for Reduction of Mutual Coupling

Veeramani, Arun; Arezomand, Afsane Saee; Vijayakrishnan, J; Zarrabi, Ferdows B.

doi:10.1109/acct.2015.112

Cited by 27 publications

(15 citation statements)

References 23 publications

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“…5 These PIFA are modified for various bands such as GSM850 (824-896 MHz), GSM900 (880-960 MHz), GSM1800 (1710-1880 MHz), GSM1900 (1850-1990 MHz), UMTS (1920-2170 MHz), LTE2300 (2305-2400 MHz), WLAN2400 (2400-2484 MHz), LTE2500 (2500-2690 MHz), WLAN5200 (5150-5350) MHz, and WLAN5800 (5725-5825). [5][6][7] Furthermore, the electromagnetic fields radiated by cell phones are penetrated to the user's head tissues that might be harmful. This absorption may be making some disease and physical problem such as cancer therefore reduction, this absorption is an important aim in cell phone and PIFA are known as a good candidate for this purpose.…”

Section: Introductionmentioning

confidence: 99%

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Split ring resonator metamaterial loads for compact Hepta band printed inverted F antenna with circular polarization

Hatami

Naser‐Moghadasi

2018

Micro & Optical Tech Letters

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The printed inverted F antenna (PIFA) has been developed in various shapes for the wireless application. In this paper, we have developed a novel shape based on loop antenna where it is in interaction with the split ring resonator (SRR) load and the extended ground by two vias for multi‐band antenna to cover, GSM900, GSM1800, UMTS, GSM1900, WCDMA 100, 802.11b/g, LTE2600, and 802.11a/n. The antenna total dimensions are 100 mm × 60 mm and it is fabricated on a low‐cost FR‐4 substrate. The prototype antenna has omnidirectional pattern and VSWR is lower than 3 for wireless requested frequency. We obtained 2‐4 dBi antenna gain plus 70% efficiency and circular polarization at 2.5 and 5.5 GHz. The prototype antenna shows low SAR for GSM 900 and GSM 1800 while it has checked for 1 g and 10 g with maximum value of 0.942 and 1.27 W/kg for 900 and 1800 MHz, respectively. In this new survey, the SAR value is decreased sensitively as per previous range in PIFA. The prototype has simulated with HFSS and CST that we used full wave method in both simulation software and finally we compared simulation and experimental result.

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Section: Introductionmentioning

confidence: 99%

“…In 7 , the dual-band MIMO antenna with eight folded monopole antennas operates in 3.4-3.6 GHz and 4.55-4.75 GHz bands. However, owing to the limited space, it is hard to design an element working in more than two bands with traditional methods [1][2][3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

Split ring resonator metamaterial loads for compact Hepta band printed inverted F antenna with circular polarization

Hatami

Naser‐Moghadasi

2018

Micro & Optical Tech Letters

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“…Therefore, the energy lost into the substrate will reduce and the energy coupled to the radiated field will increase . Implementation various forms and shapes of metamaterial and EBG unit cells to decrease the coupling have been noticed . MNG's metamaterial are applied as a planar EBG to decrease the mutual coupling between microstrip patch antennas, which causes a −18dB loss and also 60% loss in radiated power .…”

Section: Introductionmentioning

confidence: 99%

Compact meandered‐shape electromagnetic bandgap structure using in a microstrip array antenna application

Toolabi

Sadeghzadeh

Nasser-Moghadasi

2016

Micro & Optical Tech Letters

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In this letter, a novel spiral shape for electromagnetic bandgap structure (EBG) is presented for array structure. By implementation of the spiral formation, the inductance of the EBG unit cell will be increased and the unit cells are compacted around 36% for 3.6 GHz in comparison to conventional EBG unit cells. The prototype model of unit cells is used for 2 × 2 element microstrip patch array antenna with slot feed for improving the radiation gain of the antenna by reducing the mutual coupling effect of the antenna. Suppression of surface waves using EBG has improved the gain about 1.2 dB. Finally, an antenna prototype was fabricated and tested. Good agreement between simulation and measurement is obtained that verified the performance of the proposed structure. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2084–2088, 2016

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“…Many techniques to reduce the mutual coupling or to increase the port isolation of antenna arrays have been proposed in literatures [3][4][5][6][7][8][9][10][11][12]. The element isolation can be increased by properly arranging the antennas in different orientations, for example, an antenna cube [3].…”

Section: Introductionmentioning

confidence: 99%

“…The decoupling networks [6,7] can be designed to increase port isolation. Mutual coupling can also be reduced by introducing defected ground structure (DGS) [8,9], implementing electromagnetic bandgap structures (EBG) [10] or using neutralization lines [11,12]. Most of the studies presented in literature reveal a single operating band MIMO antenna system.…”

Section: Introductionmentioning

confidence: 99%

Compact Dual-Frequency Microstrip Antenna Array With Increased Isolation Using Neutralization Lines

Yu¹,

Yi²,

Liu³

et al. 2015

PIER Letters

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Abstract-An effective technique utilizing neutralization lines to increase the isolation of a compact two-element dual-frequency microstrip antenna array is proposed in this paper. Two neutralization lines connect the two elements at the edge of each radiating patch. The positions and lengths of the two neutralization lines are studied to get the best performance of element isolation. A prototype of the proposed design was fabricated to validate the results. The measured results agree well with the simulated ones. It is shown that an increase of about 25 dB at the lower frequency and that of 17 dB at the upper frequency in isolation between the two antennas have been achieved.

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Compact S-Shaped EBG Structures for Reduction of Mutual Coupling

Cited by 27 publications

References 23 publications

Split ring resonator metamaterial loads for compact Hepta band printed inverted F antenna with circular polarization

Split ring resonator metamaterial loads for compact Hepta band printed inverted F antenna with circular polarization

Compact meandered‐shape electromagnetic bandgap structure using in a microstrip array antenna application

Compact Dual-Frequency Microstrip Antenna Array With Increased Isolation Using Neutralization Lines

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