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HW4 - "3x10B.dzlm,f=3GHz,eap=68%=¢>:3X109=0.1m d2...

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Unformatted text preview: "3x10B .dzlm,f=3GHz,eap=68%=¢>/\:3X109=0.1m d2 are? «(1)2 1: 2= — =-—$ = = 2 @141? m‘ «(2) 4 4 0.785 m A ® 539 = 78:1 =r" Aem = 5013A]: Am. = aapA, = 0.68(0.785) = M: w 4 03) Am = EDD => Du _ ngem 41r 41w 411' D g —- = —— . = _' - = ' 0 A2 Am (0.1)2 (0 534) 0.01(0 534) 671 044 D0 = 671.044 = 28.268 dB = AemWL = 0.53400 x 10-6) PL -“= 5.34 x 10‘6 watts status mile = 1609.3 meters, 22,300(status miles) = 3.588739 x 107 m .n- _ 44122 _ 4w x (3.58874) 4.943 x 10 Iwatts/m . 2 .Aem = i—fi-DU, ('— D{) = 60 (13 = 106) («— A = 0.15 In) \ ' ' 0.15 2 . — ( ) -106 = 1790.493 1112 em _ 411' Am . P,- = (1790.493) - (4.943 x 10-15) =(8.85 x 10'18 watts.) r R=16x 103 m,f=2 GHz,Gm=20 (1B,?t = 100 watts, P, = 5 x 10"9 watts G9,. =? Gm = 20 dB = lologmwmmimn =-,~ Gm(dimensionless) = 102 = 100 ' Gm (dimensionless) = 100 _3><10"3 _2x109 Friis Trangniission Equation (2-119): P, A 2 P, 1 4w}: 2 1 E‘G“G°'(fi) ”Haw—EEK) (T) (16115) G _5x10-9 i 41r(16x103) 2 g ”j“ 100 100 0.15 1 _ 10 x 10—9 x 10“ 41(16) 2' — 104 0.15 f = 2 GHz => A = 0.15 meters = 1040340413)“ G0,. = 1,796,706.65 x 10“3 = 1.796? = 2.545 dB G0.- = 1.796? = 2.545 (13 ...
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