Printed Broadband Asymmetric Dual-Loop Antenna for WLAN/WiMAX Applications

Peng, Chia‐Mei; Chen, I-Fong; Yeh, Ji-Wei

doi:10.1109/lawp.2013.2273231

Cited by 19 publications

(7 citation statements)

References 6 publications

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“…* Correspondence: amin.honarvar@pel.iaun.ac.ir Due to the small size and low cost of such systems, there has been a surge of interest [4] in printed antennas. To cover multiple bands simultaneously, various antennas including a multiple mode monopole antenna, loop, and slot antenna have been proposed [4][5][6][7][8][9][10][11][12][13][14][15]. However, classic loop antennas are typically narrow band radiators that occupy much space.…”

Section: Introductionmentioning

confidence: 99%

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A hybrid multiband printed loop antenna for WLAN/WiMAX bands forapplications in MIMO systems

Shahshahani¹,

Honarvar²

2019

Turk J Elec Eng & Comp Sci

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In this article a thin hybrid multiband printed loop antenna is presented for application in multiple-input multiple-output (MIMO) systems. The proposed antenna has several advantages; for example, the pseudofilter feature of the proposed antenna is one of this antenna's advantages. Because of the antenna's width ( 9.5 mm), it can be used on the edges of the board. The first resonant frequency is generated by the original loop of the antenna. Incorporation of different embedded components, i.e. a subsidiary loop, extended ground-traces, parasitic patch, and the slits, results in the proposed antenna resonating as a multiband antenna. This antenna is adjusted in such a way that it resonant in WLAN ( 2.4 , 5.2 , and 5.8 GHz) and WiMAX ( 3.5 GHz) bands. Four antennas are used as a MIMO system that are sequentially and perpendicularly placed along the edges of the board. In conclusion, the antenna design is confirmed according to simulation results obtained from the constructed prototype and associated measuring results.

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Section: Introductionmentioning

confidence: 99%

“…In order to reduce or eliminate the system ground plane effects on antenna performance, modified one-wavelength loop antennas have been proposed. Furthermore, two planar asymmetric loops, to enhance the operating impedance bandwidth of the antenna, have been reported [15].…”

Section: Introductionmentioning

confidence: 99%

A hybrid multiband printed loop antenna for WLAN/WiMAX bands forapplications in MIMO systems

Shahshahani¹,

Honarvar²

2019

Turk J Elec Eng & Comp Sci

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“…Available literature has addressed a few challenges of antenna gain, bandwidth and limiting Q-factor [8][9][10][11][12]. Many antennas are presented in literature to be mechanically and electrically compact for both near-field and far-field applications [13][14][15][16]. Essentially, antenna performance and size are significantly interconnected.…”

Section: Introductionmentioning

confidence: 99%

Compact Planar Dual Band Antenna for Wlan Application

Upadhyaya¹

2017

PIER Letters

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A miniaturized dual-band microstrip antenna has been designed and analyzed for Wireless LAN application. The proposed antenna comprises a 29 × 29 mm 2 radiating patch, fed by a microstrip line on a 1.6 mm thick FR4 dielectric material substrate. The antenna measurement illustrates impedance bandwidth of around 10% at 2.4 GHz resonance and 6% at 5.5 GHz resonance. The measured stable return loss and radiation patterns are presented for the proposed dual-band electrically small microstrip antenna for wireless applications.

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“…It is clearly indicates that complicated structure and large size are main drawbacks for the antenna to integrate with portable mobile devices. Two asymmetric radiated loops used in and two pairs of complementary capacitively loaded loop slots employed in are new methods to implement multiband modes. Obviously, these structures are more complex for wireless applications.…”

Section: Introductionmentioning

confidence: 99%

Design of a compact triband monopole antenna for WLAN and WiMAX applications

Tang

Liu

Yin

et al. 2015

Micro & Optical Tech Letters

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curve. (a) indicating, both of pulse and ultrasonic can be taken as a signal or impurity. When calculating the SNR of specific disturbance, all of other disturbances are included into the denominator.Briefly, if two or more disturbances exist in the sensing fiber, the SNR of every disturbance is lower than the single disturbance and declines heavily as disturbances' number improves. Based on the experiments, all SNR should be no less than 0.3835 in multiple disturbances to let all disturbances be correctly located. Therefore, even that all disturbances have the same energy, the SNR is 0.33 for four disturbances, which are out of the range. So the limitation number of disturbances is three in this system.Satisfying the criterion, triple disturbances applied at 20 km, 70 km, and 100 km simultaneously are successfully located with driven voltage 4 V, 4 V, and 4V. As every disturbance's SNR declines, all peaks' height and the flatness of the location curve decline as compared with the two ultrasonic situations at the same conditions. Moreover, some random peaks come into being that sometime may be greater than the distance peak.In conclusion, multiple disturbances along sensing fiber in Sagnac interferometers are investigated in this article. Four situations, pulse to pulse, pulse to ultrasonic, ultrasonic to ultrasonic, and triple ultrasonic can all be precisely located by the improved twice-FFT algorithm. The distance peak is highly remarkable in the location curve after performing autocorrelation to the spectrum.Furthermore, location performance fading is observed as SNR decays as number of disturbances increases. Results of 42 groups indicate that the SNR of every disturbance should keep in a relatively strict region to be located correctly. The restriction of the experimental system is 0.3835, hence at most three disturbances can be correctly located, which have instructive significance on the multiple disturbances.

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Printed Broadband Asymmetric Dual-Loop Antenna for WLAN/WiMAX Applications

Cited by 19 publications

References 6 publications

A hybrid multiband printed loop antenna for WLAN/WiMAX bands forapplications in MIMO systems

A hybrid multiband printed loop antenna for WLAN/WiMAX bands forapplications in MIMO systems

Compact Planar Dual Band Antenna for Wlan Application

Design of a compact triband monopole antenna for WLAN and WiMAX applications

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