Bandwidth Enhancement of Microstrip Line and CPW-Fed Asymmetrical Slot Antennas

Mitra, Debasis; Das, Debasish; Chaudhuri, Sheli Sinha

doi:10.2528/pierl12032204

Cited by 31 publications

(12 citation statements)

References 15 publications

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“…The requirement of high transmission rate at short ranges signifies the need of wideband feature with respect to wearable antenna. Several bandwidth enhancement techniques have been implemented using rigid substrates such as parasitic coupling and inductive loading [1], asymmetrical slots with CPW feed and microstrip feed [2] and with non-rigid substrates in [3,4]. The wideband antenna in [3] incorporates a T-shaped monopole antenna with parasitic elements for bandwidth enhancement.…”

Section: Introductionmentioning

confidence: 99%

An Effective Sar Reduction Technique of a Compact Meander Line Antenna for Wearable Applications

Bhattacharjee¹,

Mitra²,

Chaudhuri³

2017

PIER M

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Abstract-In this paper, a symmetrically structured meander line antenna placed around a T-shaped junction with truncated ground planes is proposed for wearable applications. The designed antenna has a percentage bandwidth of 69.04% covering the GSM 1800 band industrial scientific and medical (ISM) 2.4-2.5 GHz band, 4G LTE band 7 (2.5-2.69 GHz). The antenna is compact in nature with a size of 30× 40× 1.6 mm 3 . SAR reduction is achieved without the attachment of any additional unit. It is found that the application of designed truncated ground planes around positions of high electric field (E-field) region is an effective solution for reduction of Specific Absorption Rate (SAR) significantly through field cancellation technique. Maximum temperature elevation due to electromagnetic wave absorption has also been computed. The antenna is simulated over a homogenous human dry skin model as well as over a head model. The proposed design is fabricated and measured, and it is found to be compatible for real world applications while considering its miniaturization, radiation patterns and SAR limitations.

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Section: Introductionmentioning

confidence: 99%

An Effective Sar Reduction Technique of a Compact Meander Line Antenna for Wearable Applications

Bhattacharjee¹,

Mitra²,

Chaudhuri³

2017

PIER M

Self Cite

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“…Ultrawideband (UWB) techniques have many advantages, such as higher data rates, immunity to multipath cancellation, increased communication operational security, and low interference to legacy systems . Interestingly the planar microstrip antennas with CPW fed posses the features such as ultrawide impedance bandwidth, omni directional radiation pattern, constant gain, high radiation efficiency, constant group delay, low profile, and easy manufacturing . Federal Communications Commission (FCC) ruled that UWB can be used for data communications as well as radar and safety applications .…”

Section: Introductionmentioning

confidence: 99%

CPW-fed step-shaped microstrip antenna for UWB applications

Jose

Lethakumary

2015

Microw. Opt. Technol. Lett.

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A compact and simple CPW‐fed step‐shaped microstrip antenna for ultrawideband applications is presented. The antenna offers a wide bandwidth from 4.4 to 11 GHz with an impedance bandwidth of 85.7%. The antenna also offers an average gain of 4.65 dBi in the entire band with good radiation characteristics. The antenna posses an overall dimension of 30 × 25 × 1.6 mm3 when fabricated on FR4 epoxy substrate of dielectric constant 4.4 and thickness 1.6 mm. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:589–591, 2015

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“…Nowadays, with the rapid development of smart and multifunctional communication systems, antennas and antenna arrays with wide frequency coverage and reliable radiation properties are demanded [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Among various kinds of antennas, the slot loop antenna (SLA) has raised research interests in academic and industrial fields for its simple configuration and good radiation properties.…”

Section: Introductionmentioning

confidence: 99%

Wide Slot Loop Antenna With Distance-Adjustable Back-Reflector for Multiple Narrowband Antennas Replacement

Peng

Qi²,

Jiao³

2013

PIER

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Abstract-In this paper, a wide slot loop antenna with an adjustable back-reflector is introduced. Five working statuses are defined by simply adjusting the distances between the radiator and the reflector. Measured results show the total available operating band with better than 10 dB return loss ranges from 0.84 GHz to 3.04 GHz (113.4%). The radiation properties of the array are tested in an anechoic chamber. Stable unidirectional radiations with more than 8.3 dB gains are observed in the working band. Apart from that, the straightforward two-portion arrangement of the design provides costeffective solution for mass production. All these features make the antenna an appropriate substitute for multiple narrowband antennas.

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Bandwidth Enhancement of Microstrip Line and CPW-Fed Asymmetrical Slot Antennas

Cited by 31 publications

References 15 publications

An Effective Sar Reduction Technique of a Compact Meander Line Antenna for Wearable Applications

An Effective Sar Reduction Technique of a Compact Meander Line Antenna for Wearable Applications

CPW-fed step-shaped microstrip antenna for UWB applications

Wide Slot Loop Antenna With Distance-Adjustable Back-Reflector for Multiple Narrowband Antennas Replacement

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