. The Bell System technical journal . UJ<OCct < zct cc L QUI 1- tflO Zli-Q-Z 5< oF ^,f, z o- bj 95 t-cr z JLlfi^ oooJ rw^^rw\. 338 BELL SYSTEM TECHNICAL JOURNAL antennas are used in either a lateral array, a longitudinal array, or acombination of the two. In the lateral array, the initial ends of the wave-antennas are spacedin the direction perpendicular to the axes of the antennas. Since itextends over space in the lateral direction, unless there be undue sacri-fice in desired signal, the lateral array can only reduce the width of thedirectional diagram. In a true longitudinal array,
. The Bell System technical journal . UJ<OCct < zct cc L QUI 1- tflO Zli-Q-Z 5< oF ^,f, z o- bj 95 t-cr z JLlfi^ oooJ rw^^rw\. 338 BELL SYSTEM TECHNICAL JOURNAL antennas are used in either a lateral array, a longitudinal array, or acombination of the two. In the lateral array, the initial ends of the wave-antennas are spacedin the direction perpendicular to the axes of the antennas. Since itextends over space in the lateral direction, unless there be undue sacri-fice in desired signal, the lateral array can only reduce the width of thedirectional diagram. In a true longitudinal array, the antennas are coaxial, but theirinitial ends are separated by an appreciable fraction of a wave-length. If the wave-antennas forming this type of array overlap oneanother, then the mutual impedance between them would greatlymodify their individual characteristics. In practice, a small amountof lateral spacing between the units of a longitudinal array is necessaryto make the mutual impedance negligible. When this type of arrayis properly designed, the reduction in directional receptivity due to thearray is principally in the b
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
