. The Bell System technical journal . f\ \. -- r ^^^ , n 1 x^ --^\ %^ • ^35^^** >- !^^ / .A Syffon Maine OitmuSitectiM in^l. rj^ .fitWT Fig. 12 TRANSATLANTIC RADIO TELEPHONY 339 quite evidently combines the narrowing of the directional diagramdue to the lateral array and the reduction of the back end area of the. 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170360 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190ANGLES OF INCIDENCE (e) - DEGREES 180180 Fig. 13—Wave-antenna array directional characteristic. Relative directional recep-tivity of lateral array of t
. The Bell System technical journal . f\ \. -- r ^^^ , n 1 x^ --^\ %^ • ^35^^** >- !^^ / .A Syffon Maine OitmuSitectiM in^l. rj^ .fitWT Fig. 12 TRANSATLANTIC RADIO TELEPHONY 339 quite evidently combines the narrowing of the directional diagramdue to the lateral array and the reduction of the back end area of the. 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170360 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190ANGLES OF INCIDENCE (e) - DEGREES 180180 Fig. 13—Wave-antenna array directional characteristic. Relative directional recep-tivity of lateral array of two Houlton antennas. (Short) 1 U ^ ; ^ ^ - -COMPUTED DIRECTIONAL CHARACTERISTIC (0-l80°)-COMPUTED DIRECTIONAL CHARACTERISTIC (l80°-360 ) \ • OBSERVED VALUES (0-180°)o OBSERVED VALUES (180°-360°) ^ LENGTH= INDIVIDUAL ANTENNAS UJ (JUJ OJ a -J ! _i UJ ^ A. ATTENUATION = PER RATIO = ANGLE = RADIANS ^; ANTENNA DIRECTION = N 56° 7E s \ ARRAY V LONGITUDINAL SPACING = KM. LATERAL SPACING = KM. \ , DESIRED SIGNALS COMBINED IN PHASE AND AT EQUAL AMPLITUDES ,927 \ \ v\ \\ \.\ V ( ^ • ^J^ ■^ • ; -£._. -.::i7- .*-* rrr r-j^ ~w-~ 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 I8C360 350 34
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
