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- W2138839718 abstract "The principles of using radiating microstrip resonators as elements in a frequency scanning antenna array are described. The resonators are cascade-coupled. This gives a scan of the main lobe due to the phase-shift in the resonator in addition to that created by the transmission line phase-shift. Experimental results in <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>X</tex> -band, in good agreement with the theory, show that it is possible to scan the main lobe an angle of <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>pm30deg</tex> by a variation of the frequency <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>pm300</tex> MHz, and where the 3 dB beamwidth is less than <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>10deg</tex> . The directivity was 14.7 dB, while the gain was 8.1 dB. The efficiency might be improved by a trade-off between the efficiency and the scanning angle, or by using a better amplitude distribution." @default.
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- W2138839718 date "1979-03-01" @default.
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- W2138839718 title "Frequency scanning microstrip antennas" @default.
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- W2138839718 doi "https://doi.org/10.1109/tap.1979.1142049" @default.
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