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- W1969383791 abstract "This research presents a rectangular ring antenna excited by a circular disc monopole (CDM) mounted in front of a square reflector. The proposed antenna is designed to cover a frequency range of 2.300–5.825 GHz and thereby is suitable for WiMAX applications. Multiple parametric studies were carried out using the CST Microwave Studio simulation program. A prototype antenna was fabricated and experimented. The measurements were taken and compared with the simulation results, which indicates good agreement between both results. The prototype antenna produces an impedance bandwidth (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mo stretchy=false>|</mml:mo><mml:msub><mml:mrow><mml:mi>S</mml:mi></mml:mrow><mml:mrow><mml:mn>11</mml:mn></mml:mrow></mml:msub><mml:mo stretchy=false>|</mml:mo></mml:math>< −10 dB) that covers the WiMAX frequency range and a constant unidirectional radiation pattern (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M2><mml:mi mathvariant=normal>θ</mml:mi><mml:mo>=</mml:mo><mml:msup><mml:mrow><mml:mn>0</mml:mn></mml:mrow><mml:mrow><mml:mo>°</mml:mo></mml:mrow></mml:msup></mml:math>and<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M3><mml:mi mathvariant=normal>∅</mml:mi><mml:mo>=</mml:mo><mml:msup><mml:mrow><mml:mn>90</mml:mn></mml:mrow><mml:mrow><mml:mo>°</mml:mo></mml:mrow></mml:msup></mml:math>). The minimum and maximum gains are 3.7 and 8.7 dBi, respectively. The proposed antenna is of compact size and has good unidirectional radiation performance. Thus, it is very suitable for a multitude of WiMAX applications." @default.
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- W1969383791 date "2014-01-01" @default.
- W1969383791 modified "2023-09-24" @default.
- W1969383791 title "Rectangular Ring Antenna Excited by Circular Disc Monopole for WiMAX System" @default.
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- W1969383791 doi "https://doi.org/10.1155/2014/769816" @default.
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