4.4 y 4.7. Área Efectiva y Fórmula de Transmisión de Friis

 

 

]@BUÇL @D@I]UBGLNKÁ]AIL 

=.=. Lkìdasas m` btrbs tapbs m` lkt`kl `sp`iald`s. Lkt`kl mapbdb m` g`mal bkml. @k `d lkìdasas m`d mapbdb `d`g`ktld (ibrtb b c`rtzalkb) s` m`slrrbddlrbk `xpr`sabk`s plrl dbs ilgpbs `dáitraib y glnkátaib rlmalmbs pbr uk mapbdb ibrtb m` dbknatum guicb gìs ibrtl qu` . Lcbrl s` utadazlrìk `sls `iuliabk`s ibgb els` plrl bet`k`r `iuliabk`s plrl dbs ilgpbs rlmalmbs rlmalmb s pbr ukl lkt`kl mapbdb m` g`mal bkml, ddlglml lsç pbr su dbknatum . Ibgb s` gu`strl `k dl janurl 1

  7  /5

Janurl 16 Mapbdb m` g`mal bkml ibk ldag`ktliaùk i`ktrld.

@d mapbdb m` g`mal bkml s` ibgpbk` m` uk m`dnlmb cadb ibkmuitbr ldag`ktlmb `k su i`ktrb pbr uk n`k`rlmbr ibk`itlmb l dls t`rgakld`s m` dl lkt`kl g`malkt` ukl dçk`l m` trlksgasaùk. Dl ibrra`kt` qu` jduy` l trlvás m`d cadb ibkmuitbr ta`k` ukl mastraeuiaùk sagátrail ibk r`sp`itb ld i`ktrb m`d mapbdb y dl ibrra`kt` ta`k` qu` s`r i`rb `k dbs `xtr`gbs. Glt`gìtailg`kt`,  s` m`t`rgakl lsç6  s`

 ( ) () 7 ((+) +) () 7 ()    ∕ = ≭  ≭ =  7   ?=   ? ∕ /  

@xpr`slmb `k jlsbr

Mbkm`

 7 

Dl `iuliaùk

 

.

 

   

 

ml ukl `xpr`saùk plrl , `d ilgpb d`flkb (l ukl mastlkial mastlki al U) rlmalmb pbr uk mapbdb . Lmlptlkmb `sl ibrtb m` dbknatum   iulkmb s` `xiatl g`malkt` ukl ibrra`kt` `xpr`saùk l uk s`ng`ktb m` mapbdb akjakat`sagld m` dbknatum , `xiatlmb pbr ukl ibrra`kt`  y dbildazlmb l ukl mastlkial s m`d puktb m` bes`rvliaùk (Janurl 1(e)).  y _br db tlktb,

()

 

 

]@BUÇL @D@I]UBGLNKÁ]AIL 

()7  = ? ()  ∕  / () ()7 ()   / ()

 

y `d ilgpb glnkátaib lsbialmb `s

 

?

@d ilgpb d`flkb prbmuiamb pbr dl rlmaliaùk m` tbml dl lkt`kl s` beta`k` akt`nrlkmb dbs ilgpbs m` tbmbs dbs mapbdbs c`rtzalkbs qu` jbrglk dl lkt`kl6

=

 7 7∕ = 

 

 Lkt`s m` ildiudlr `stl akt`nrld, s` m`e` cli`r ukl lprbxagliaùk, ddlglml lprbxagliaùk m` rlyb plrld`db, dl iuld ibksast` `k6

≀∕ ≀∕   7  =? ()  ∕     / ()  

Ibgb s` pu`m` lpr`ialr `k dl janurl 1(e). Yustatuy`kmb dl `iuliaùk

 

plrl s `k `d jlitbr m` jls` m` dl `iuliaùk (L) ( ibk  `k iuldqua`r plrt` m` dl `xpr`saùk, s` ta`k`

) y r``gpdlzlkmb s ibk U y

 



 

 

 

]@BUÇL @D@I]UBGLNKÁ]AIL 

 Lcbrl6