A Waveguide Shunt Slot-Fed Microstrip Patch Antenna—Analysis Using the Method-of-Moments

Sood, Khagindra; Jyoti, Rajeev; Sharma, Shashi

doi:10.1109/tap.2013.2278485

Cited by 9 publications

(10 citation statements)

References 28 publications

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“…This problem can be solved numerically by the method of moment. In here, an approximate estimate of the unknown magnetic current distribution on slot surface has been mentioned from the previous study of a similar nature [16].…”

Section: Antenna Configurationmentioning

confidence: 99%

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High gain and wideband patch antenna with wide 3‐dB axial ratio bandwidth operating at TM ₀₁ and TM ₁₁ modes

Fakhte

Aryanian

2021

IET Microwaves Antenna & Prop

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A wideband and high gain circularly polarised patch antenna has been introduced. The proposed antenna combines an aperture coupled feeding with a T‐slot, four metallic vias and a patch with a diagonal slot to present high gain and wide 3‐dB axial ratio bandwidth (BW) characteristics. In this study, a rectangular patch (0.6 λ0 × 0.5 λ0 at f = 7.5 GHz) with a diagonal slot has been symmetrically located above the T‐slot at the height of 0.07 λ0. A WR90 waveguide with the length of 50 mm and a T‐slot in its extended outer wall has been used as a primary antenna that feeds the patch element. Four metallic vias with shunt inductive effects have been used to virtually enlarge radiating patch dimension, so they present a significant improvement in antenna gain, BW and axial ratio. The proposed antenna shows the BW of 30% with tgain of up to 12 dBi and an axial ratio BW of 21%. Due to its wideband, high gain, and wide 3‐dB axial ratio BW, this antenna is a good candidate for some applications, such as small satellites, and for the global positioning system the high gain, precision and flexibility of the system are crucial.

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Section: Antenna Configurationmentioning

confidence: 99%

“…where the parameters x 0 and L s , respectively, show the slot distance from the waveguide port and slot length. Also the electric current across the patch has been taken to be [16]:…”

Section: Antenna Configurationmentioning

confidence: 99%

High gain and wideband patch antenna with wide 3‐dB axial ratio bandwidth operating at TM ₀₁ and TM ₁₁ modes

Fakhte

Aryanian

2021

IET Microwaves Antenna & Prop

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“…Now, in order to find the optimized slot length and width, the starting point of the length is taken as 0.08 λ that is 4 mm , whereas the width is taken almost twice the length .…”

Section: Parametric Studymentioning

confidence: 99%

A wearable ultra-wideband antenna for wireless body area networks

Shafique

Khawaja

Tarar

et al. 2016

Microw. Opt. Technol. Lett.

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In this article, a compact and planar wearable ultra‐wideband (UWB) antenna is designed and characterised for wireless body area network (WBAN) applications. The antenna is designed and fabricated on two different substrates: a thin and flexible high‐end RT/Duroid 5880 substrate (h = 0.381 mm) and a low‐end FR4 substrate (h = 1.6 mm) having fabricated antenna dimensions of 86 mm × 72 mm and 75 mm × 61 mm, respectively. The dimensions of the proposed design for both the substrates are calculated using the well‐known transmission‐line model. The antennas are simulated using ADS momentum and CST microwave studio for evaluation of work using two different modelling techniques. The antenna structure consists of a rectangular radiating patch with a rectangular slot and a reduced ground plane to improve the impedance matching characteristics. An offset‐feed method is employed to enhance the overall patch bandwidth. The measured −10 dB impedance bandwidth and gain with the RT/Duroid 5880 and FR4 substrates are 7.1 GHz (3.5–10.6 GHz)/4.89 dBi and 7.2 GHz (3.8–11 GHz)/2.75 dBi, respectively. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1710–1715, 2016

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“…Details of the MOM derivation, expressions for the matrix terms and network parameters, and parametric studies with regard to the chief design variables have been reported by the authors separately [6]. Only coupled power variation with slot transverse offset and expressions for the far-field quantities are included here as these are relevant for succeeding computations on linear arrays.…”

Section: Mom-analysis Of the Wgmpa Elementmentioning

confidence: 99%

Linear array modules with prescribed excitations using waveguide shunt slot-fed microstrip patch elements

Sood¹,

Jyoti²,

Sharma³

2013

Int. J. Microw. Wireless Technol.

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A waveguide shunt slot-fed microstrip patch antenna (WGMPA) element is proposed and analyzed with method of moments (MOM) using entire-domain basis functions. The developed analysis has been utilized to obtain parametric observation of power-coupling versus transverse offset of feeding slot from the waveguide axis. Expressions for the radiation pattern as a summation of contributions of individual basis functions are reported. The proposed element is amenable to building-up series-fed linear arrays by a simple cascading of elements at the through-end of the feeding waveguide. The authors propose that arbitrary amplitude excitations may be applied to such linear arrays for desired tailored array pattern characteristics. The required transverse offsets for each array element may be computed using the reported parametric result. As a demonstration of concept, two distributions are designed – uniform amplitudes and Dolph–Chebyshev for reduced side lobes. Computed element patterns from MOM are used with an array factor formulation for arbitrary element positions. Both modules show radiation characteristics closely matching the expected directivity and sidelobe envelopes. Analysis validation is achieved using a proven finite element method (FEM)-based solver; the comparison is close and is reported. Efficacy of the waveguide shunt-slot fed patch element for building linear array modules with prescribed amplitude distributions is thus established.

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A Waveguide Shunt Slot-Fed Microstrip Patch Antenna—Analysis Using the Method-of-Moments

Cited by 9 publications

References 28 publications

High gain and wideband patch antenna with wide 3‐dB axial ratio bandwidth operating at TM ₀₁ and TM ₁₁ modes

High gain and wideband patch antenna with wide 3‐dB axial ratio bandwidth operating at TM ₀₁ and TM ₁₁ modes

A wearable ultra-wideband antenna for wireless body area networks

Linear array modules with prescribed excitations using waveguide shunt slot-fed microstrip patch elements

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A Waveguide Shunt Slot-Fed Microstrip Patch Antenna—Analysis Using the Method-of-Moments

Cited by 9 publications

References 28 publications

High gain and wideband patch antenna with wide 3‐dB axial ratio bandwidth operating at TM 01 and TM 11 modes

High gain and wideband patch antenna with wide 3‐dB axial ratio bandwidth operating at TM 01 and TM 11 modes

A wearable ultra-wideband antenna for wireless body area networks

Linear array modules with prescribed excitations using waveguide shunt slot-fed microstrip patch elements

Contact Info

Product

Resources

About

High gain and wideband patch antenna with wide 3‐dB axial ratio bandwidth operating at TM ₀₁ and TM ₁₁ modes

High gain and wideband patch antenna with wide 3‐dB axial ratio bandwidth operating at TM ₀₁ and TM ₁₁ modes