A Wide Coverage S-Band Array with Dual Polarized Connected Bowtie Antenna Elements
Широкопокрывная S-диапазонная антенная решетка с двуполяризованными связанными элементами — эллиптическими антеннами типа "бабочка"
2019-07-01
SCID: 54.1/8n7txpvz
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S-band (3 GHz)active reflection coefficientconnected antenna elementsdual polarized bowtie antennawide-scan phased array
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Abstract (AI)
A low profile dual polarized bowtie antenna element is studied for an S-band (3 GHz) wide-scan application in a large-scale (nearly an infinitely large) uniformly excited phased array. The study shows that the array with such elements, when connected, is capable of scanning up to ±75° at E-plane and ±15° at H-plane for horizontal and vertical polarizations respectively. The bandwidth of the infinite array with such elements across these scan angles is 10% and 25% for the active reflection coefficient of -10 dB and -5 dB respectively.
Key Findings
1
A low-profile dual-polarized bowtie antenna element is proposed for S-band (3 GHz) wide-scan phased arrays.
2
Across these scan angles, the infinite array bandwidth is 10% for an active reflection coefficient of -10 dB.
3
Across these scan angles, the infinite array bandwidth is 25% for an active reflection coefficient of -5 dB.
4
The connected array achieves ±15° scan in the H-plane for vertical polarization.
5
When elements are connected in a large uniformly excited array, scanning capability reaches ±75° in the E-plane for horizontal polarization.
Research Object
Connected dual-polarized bowtie antenna element in a uniformly excited large-scale S-band phased array
Research Subject
Array scanning performance and bandwidth (scan limits ±75° E-plane, ±15° H-plane; active reflection coefficient bandwidths 10% at -10 dB and 25% at -5 dB) for horizontal and vertical polarizations
Publication Details
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2019-07-01
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