20091109Lect31Part2_P5_9Array

20091109Lect31Part2_P5_9Array - leI'-w~ 1~~D pvie cJ(!vf!...

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·..---. ... 5.9 An AM broadcast-band transmitting station consists of two vertical 'T<z>" monopoles above earth. The two antennas are separated by 164 feet and t .-<, L the transmitting frequency is 1500 kHz. The antennas are fed with signals of equal amplitude and a phase difference of 135°. Sketch the electric field pattern at the surface of the earth. t 6 Lf +t::- (6,-( f+ . .:;- 3 ~ Zb ,-f~ = .5'0 M =- '~I 'f ' . 4.s.sv (V\ p ~f~1) j 0, The q t) ~~ t1t1: S cc -e elec .(, I"u{ (y s 1wf ct~cI fIlCtr te .' ., ' 'I~f rl. seflleJ C{$ '_ t-let {ZtliYj PtpC ~ ., ,/~S5(jyY}p ~(C1) 2; The ql) !-e.,IUfS C{ re eCec~' Jo m hl$h C?IlJ are 1'1). (Vl.{j'tCl{J ..s I 1< ~=4c !~ 7/// ;,/i L 7;J?i 7 / tjO / }777~ y , ~(VL-/\d :x (5 1 53) Iv. 2e , : .' . ' "E e ::. Z e J~ x{Mf e -Jfo('1 X [O~(1T J 5M 6 )/i1~ -1)< .' . r' (.0. b o . " •... o ('('l.OI){)fQ~ PUJlefN .c:e. .,r~1 feecfcr. ' 0{ - 13S l,Sphll,e dl /Jef'tYlc:.f bJl~t1 tff :~cf [V(/'t'1'1h oM ==- J 60 Fee) i.V~ Pee) is 9'vf.1 hI L::g (;,-.tq ) ~ (e):: (os[Qr .elL\:,)w;'&],- cost If~/~) ~·/t'J e
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P 5'" q C Of), ·t li4vt? d __ . _ For +he ~u-ar
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Unformatted text preview: leI'-w~ 1~~D pvie cJ(!vf! a: (Jerfec j fj/Vu4(/~;e. ,,.-_-+_X?-.2J1::. !po 12 ;,. )l. {1 0 .: _ '/z. . _ _-_-__- -+-E(Eit=~05 [(rr&amp; )(05G1-~) ~ COS[!Co5G]-________ ~'/~&amp; _ _ _. . SI_fl:CJ_ _ _ / _ __ -l--EI;LJ~::~kLl{ __ d 120 ~ VV__-~4Ll~ &lt;:errrJir kckt IS .. ~~Slltb-fi_~_~J-':JOS[~-5Mdto.s] __--_----! 4+ +6 svrC&amp;\Q._Q+ ~ e&amp;(J]1~G. =: 90 t f( 8 :: Co S ( 1! (0.5 era 'l-. Cos [ 1 x o J ::: ..1 , - - _.- ~ {-&quot; Cloo '&quot;I - ---.----COSCLfS'Sll)tQ-671)OJ 2n&lt;l L(JL q Ell kr- ~ SiN x L[ S ~ A ifVJt rCR&lt;., kr-.,. ... .,. ..,--'lO-100 ~tLO-t20-(30-(3)-tLfb-L ttS---L so-L6O-/70 &quot;--LW 2&quot;kr 610 RfS '--0 38-2 .-0,3&quot;11-0,-339 ~ot~8Y .-0,20 &quot;7-. o\.~6 2--alL' 2 .--0 .ss o +0, l2Y &quot;1 o, 2S&quot;L( to ,,3e3 ..---. ..... ,. [h II: I' I 1 t 1-~ , r [ ~ t I I I I I : l I I I r f I I o...
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20091109Lect31Part2_P5_9Array - leI'-w~ 1~~D pvie cJ(!vf!...

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