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Planar Multibeam Array Antenna With Rotman Lens Beamformer For 5 Ghz Band Wireless Applications
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نویسنده
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Shokouhi Farid ,Hossein Firouzeh Zaker
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منبع
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Journal Of Communication Engineering - 2020 - دوره : 9 - شماره : 2 - صفحه:258 -270
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چکیده
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A planar multi-beam array with a co-planar rotman lens beamformer is introduced for wireless applications. the array consists of 8 linear series-fed subarrays with proximity-coupled patch elements. the rotman lens feeds the subarrays through coupling slots. to reduce beam squinting, the subarrays are fed from the center. the coupling slot feeds each arm of a subarray 180° out of phase. to compensate out-of phase feeding, two feeding arms of each subarray are designed in the opposite direction. also, cross-polar radiation is reduced significantly. in order to reduce the size of radiating patches to fit within array cell size, they are formed by four sub-patches with indentions and are fed by microstrip line from feed layer with two matching sections to improve the bandwidth. measured results of the array structure in terms of the s-parameter of beam ports and radiation patterns are presented.
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کلیدواژه
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Beamforming Network ,Microstrip Antenna ,Planar Array ,Rotman Lens ,Series-Feds
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آدرس
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Isfahan University Of Technology, Department Of Electrical And Computer Engineering, Iran, Isfahan University Of Technology, Department Of Electrical And Computer Engineering, Iran
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پست الکترونیکی
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zhfirouzeh@cc.iut.ac.ir
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Authors
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