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单词 end-fire array
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end-fire array
end-fire array n. a radio antenna array in which the direction of reception of electromagnetic waves is in line with the elements of the array; so end-fire radiation, etc.
ΚΠ
1936 R. S. Glasgow Princ. Radio Engin. xiv. 458 If..there is a progressive phase difference between the currents of the adjacent antennas, the radiation will be concentrated along the axis of the array instead of at right angles to it. This type of structure is known as an end-fire array.
1939 Amat. Radio Handbk. (Radio Soc. Gt. Brit.) x. 147 Aerials do not usually radiate uniformly in all directions... The effect of the ground is generally disadvantageous..but it does help in allowing end-on or ‘end-fire’ radiation from a horizontal wire.
1943 Gloss. Terms Telecomm. (B.S.I.) 66 End-fire array, a type of directive aerial-array the principal direction of radiation of which is in the direction of the array line.
1949 Electronic Engin. 21 346 A wealth of information on broadside and end fire arrays.
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