A theoretical investigation of the rectangular microstrip antenna element

Derneryd, A.

doi:10.1109/tap.1978.1141890

Cited by 166 publications

(68 citation statements)

References 6 publications

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“…2. The average permittivity and conductivity of these layers at 2.4 GHz are: Muscle (ε r =52.79; σ =1.705), Fat (ε r =5.28; σ =0.1) and Skin (ε r =31.29; σ =5.0138) [22]. The thickness of Muscle, Fat and Skin layers are 23 mm, 8 mm and 2 mm respectively.…”

Section: Antenna Behavior On Flat-body Phantommentioning

confidence: 99%

Design and SAR Analysis of Wearable Antenna on Various Parts of Human Body, Using Conventional and Artificial Ground Planes

Ali¹,

Ullah²,

Khan³

et al. 2017

Journal of Electrical Engineering and Technology

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-This paper presents design and specific absorption rate analysis of a 2.4 GHz wearable patch antenna on a conventional and electromagnetic bandgap (EBG) ground planes, under normal and bent conditions. Wearable materials are used in the design of the antenna and EBG surfaces. A woven fabric (Zelt) is used as a conductive material and a 3 mm thicker Wash Cotton is used as a substrate. The dielectric constant and tangent loss of the substrate are 1.51 and 0.02 respectively. The volume of the proposed antenna is 113×96.4×3 mm 3 . The metamaterial surface is used as a high impedance surface which shields the body from the hazards of electromagnetic radiations to reduce the Specific Absorption Rate (SAR). For on-body analysis a three layer model (containing skin, fats and muscles) of human arm is used. Antenna employing the EBG ground plane gives safe value of SAR (i.e. 1.77W/kg<2W/kg), when worn on human arm. This value is obtained using the safe limit of 2 W/kg, averaged over 10g of tissue, specified by the International Commission of Non Ionization Radiation Protection (ICNIRP). The SAR is reduced by 83.82 % as compare to the conventional antenna (8.16 W/kg>2W/kg). The efficiency of the EBG based antenna is improved from 52 to 74 %, relative to the conventional counterpart. The proposed antenna can be used in wearable electronics and smart clothing.

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Section: Antenna Behavior On Flat-body Phantommentioning

confidence: 99%

Design and SAR Analysis of Wearable Antenna on Various Parts of Human Body, Using Conventional and Artificial Ground Planes

Ali¹,

Ullah²,

Khan³

et al. 2017

Journal of Electrical Engineering and Technology

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“…Goals (11) and (12) are constraints in order to obtain a solution meaningful from a physical standpoint, if we consider that the load L f corresponds to an equivalent slot located at the patch edge, and impedance Z f is the radiation impedance, similar to the previously proposed transmission lines models [13,14], in which the slot admittance was employed and calculated by approximated expressions. Goal (13) defines the level of accuracy desired between simulated impedance locus from circuital model and full-wave data, since in practice it is difficult to obtain equal impedance loci with both models.…”

Section: Adaptive Transmission Line Model (Atlm)mentioning

confidence: 99%

An Efficient Technique for Design of Electrically Thick Differentially-Driven Probe-Fed Microstrip Antennas

Paula¹,

Nascimento²,

Bianchi³

2014

PIER M

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Abstract-This paper presents a computationally efficient technique for designing electrically thick differentially-driven rectangular microstrip antennas with coaxial probe feed. It concerns the use of a transmission line model for probe positioning, along with a full-wave field simulator that yields accurate results with reduced number of required full-wave simulations. An electrically thick antenna was designed with the proposed technique to operate at 2442 MHz, having its radiation patterns and input impedance measured and compared against a single-feed rectangular microstrip antenna to demonstrate the advantages of using differential feed to reduce cross-polarization in H-plane.

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“…As an alternative to the effective permittivity analysis approach, we developed a transmission line (TL) model [15]. The model, for the simple substrate case, of two parallel TL branches with resistive loading at the end of each branch.…”

Section: Transmission Line Modelingmentioning

confidence: 99%

Wideband Conformal Antennas and Arrays

Bernhard¹,

Fladie²

2005

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A theoretical investigation of the rectangular microstrip antenna element

Cited by 166 publications

References 6 publications

Design and SAR Analysis of Wearable Antenna on Various Parts of Human Body, Using Conventional and Artificial Ground Planes

Design and SAR Analysis of Wearable Antenna on Various Parts of Human Body, Using Conventional and Artificial Ground Planes

An Efficient Technique for Design of Electrically Thick Differentially-Driven Probe-Fed Microstrip Antennas

Wideband Conformal Antennas and Arrays

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