. The Bell System technical journal . fects due to the proximity 84 BELL SYSTEM TECHNICAL JOURNAL of the earth. The latter have specifically been omitted in this dis-cussion. Fig. 20 shows roughly the calculated directional characteristics ofa typical stacked array incorporating both horizontal and verticaldirectivity. The planes passed through the diagram serve only asconvenient references to assist in visualizing the horizontal and verticaldiagrams. Earth effects of course, have been ignored. Appendix A general case of linear arrays which includes those used exten-sively in short-wave radio
. The Bell System technical journal . fects due to the proximity 84 BELL SYSTEM TECHNICAL JOURNAL of the earth. The latter have specifically been omitted in this dis-cussion. Fig. 20 shows roughly the calculated directional characteristics ofa typical stacked array incorporating both horizontal and verticaldirectivity. The planes passed through the diagram serve only asconvenient references to assist in visualizing the horizontal and verticaldiagrams. Earth effects of course, have been ignored. Appendix A general case of linear arrays which includes those used exten-sively in short-wave radio work, consists of a number of sources equi-spaced and equiphased along each of the three principal coordinateaxes such that the space between sources is made up of rectangularparallelopipeds with the individual sources located at each may be regarded as A^ parallel planes each made up of N parallelcolumns where each column is made up of n individual radiating ele-ments. The arrangement is made more evident by Fig. 21. The.
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