
dual-byaand blade antenna

dual-byaand blade antenna anedi oka rakamaina "blade antenna", idhi oka vimaanaaniki velupala blade aakaaramlo unna aerodynamic fairing roopamlo daani gaali lagadanni tagginchadaaniki amarchabadina monopole whip antenna. dheenini avianics radeo communication vyavasthalu upayogistaayi. dual byaand rakam samarthavanthamaina sarvadisa coverage pondadaaniki "plain und slat" designu upayogistundi, tadwara idhi rendu ververu radeo bandlalo panicheyagaladu.
parichayam.
oka vilakshanhamaina monopole antenna sarvadisaatmaka radiation namuunaanu kaligi untundi; idhi antenna akshaniki lambamgaa unna anni ajimutal disalalo samaana radeo saktini prasarimpajestundi, signal shakti ettulo unna konamtho shoonya (sunna vikiranam shakti yokka binduvu) kuu taggutundi. 
monopole antennanu diapol antennaga bhaavinchavachchu, ikkada diapol antenna yokka oka chivara ippudu aaa monopole antennaku ground plain avutundi. eee sambhaavita aalochanaa vidhanam dwara, monopole antenna nundi veluvade radiation ilanti dvidhruva antenna yokka sagam sthalamlo undani sulabhamgaa nirdhaaranaku raavacchu. anduvalla, garishta labham saadhaarana dvidhruvam yokka garishta labham kante rendu retlu ledhaa adanamgaa 3 db untundi. anduvalla monopole antennaku garishta nominal viluva sumaru 5.15dbi.
stutzman daanini kluptamgaa eee krindi vidhamgaa perkonnaduh
eee vyaasam oka rakamaina dual byaand blade monopolsnu cover chestundi. idhi monopole lopala unna slat. marinta sambhaavita avagahana kosam karyakalapala yokka konni graphics ivvadaaniki ganana vidyudayaskaanta namuunaa (sii. ii. emm) upayoginchabadutundi.
dual byaand dual modlo panichestundi
idhi oom yokka chattam v = ir aadhaaramgaa panichestundi.
ikkada v = voltage, i = current mariyu r = resistance.
siddhaantam.
monopoles.
cheppina dvidhruva antennatho polchinappudu anni radiation sagam valuemlo sambhavistundani telusukovadam dwara dvidhruva antenna utpannaalanu tanikhi cheyadam dwara monopole sameekaranaalanu pondavacchu. idhi eee krindi sameekaranaalaku daariteestundihi
"darsakatvam"
suutram _ 1
idhi suutram _ 2 yokka nirvachanam dwara dvidhruvaaniki intaku mundu perkonna garishta labha sambandhaaniki neerugaa daariteestundi, ikkada suutram _ 3 anedi antenna radiation saamarthyam.
"impedence"
suutram _ 4
"radiation nirodhakata"
suutram _ 5
anusandhaaninchabadina radiation resistance artical yokka vibhagam 1loe chudavachu.
blade antennalu.
blade antenna anedi vistruta byaand monopolnu (sannani wire monopole thoo polchinappudu) srushtinche prayatnam. chaalaa blade antennalu trapezoidal aakaaramlo untaayi. aerodynamic prayojanaala kosam eee aakaaramlo vaividhyaalu cheyabaddaayi mariyu merugaina broad byaand paniteerunu saadhinchadaaniki natchs pravesapettabaddaayi. eee rakamaina monopole antenna saadhaaranamgaa vhcf mariyu yuhechf frequency paridhi kosam vimanayanamlo upayoginchabadutundi.
marinta samacharam kosam "antenna injaneering handbook" chudandi.
slat antennalu.
slat antennanu vyatiraeka dhruveekaranatho dvidhruvamgaa chudavachu. idhi slat yokka atichinna sarala parimaanamlo ii-feeled yokka dhoranini sett chese vilakshanhamaina feed kaaranamgaa untundi. niluvu ledhaa kshitija samaantara slat antennanu daani puurakamgaa (dvidhruvam) 'anuvadinchadaaniki' eee krindi sameekaranaalanu upayoginchavachhuh
suutram _ 6
ikkada subscript s anedi terapai teranu suuchistumdi mariyu subscript c anedi daani puurakam (dvidhruvam) nuu suuchistumdi. adanamgaa, suutram _ 7, ikkada suutram _ 8 sanklishta paaragamyata mariyu suutram _ 3 anedi okati prasaristunna madhyamam yokka sanklishta anumati. idhi aparimita maadhyamgaa bhaavinchabadutundi. adanamgaa, anni slat sameekaranaalu tarangadairghyam (suutram _ 10) kante chaalaa takkuva screen mandaanni kaligi untaayi. ivi nijamani bhavinchakapothe, anchulu mariyu vidhaanaala unikini vismarinchalemu.
idhi cabinet suutram dwara nirvachinchabadindi mariyu booker yokka podigimpu dheenini marinta vistaristundi 
dhruveekarananu chaerchadaaniki suutram. cabinet suutram nundi saralamaina sameekaranaalu rachayita input kaligi unna link cheyabadina pageelo perkonabaddaayi.
dual byaand antennalu.
dual byaand antennalu kotta aalochana kaadu. aneka samvatsaraalugaa aneka tayaareedaarulu rendu ververu bandlalo panichese antennalanu roopondinchadaaniki bahula muulakaalanu militam chesaaru (logg-periodic antenna vanti frequency independent antennalu anie pilavabade vaatitho dheenini gandaragolaniki guri cheyavaddu).
dual byaand blade antennanu roopondinchadaaniki oka maargam emitante, blade antennalo suutram _ 11 kante takkuva ledhaa kramamlo unna slaatnu srushtinchadam, tadwara takkuva frequency slaatnu 'chudakudadu' (idhi oka niyamam, oka nirmaanampai suutram _ 11 kante takkuva discontinuity dwara srushtinchabadina kalavarapaatuku chaalaa takkuva).
ganana vidyudayaskaanta namuunaa (sii. ii. emm).
ganana vidyudayaskaanta namuunaa (sii. ii. emm) antenna namuunaanu sankhyaaparamgaa lekkinchadaaniki vividha paddhatulanu upayogistundi.
sikshana laeni kantiki, idhi oka chinna prakriyagaa anipinchavacchu. ayithe, kontha parisoedhana mariyu aalochanatho, anni sthaanika nirmaanaalu pratibimbam, shoshana, vakreebhavanam, anchu ledhaa vikiranam nirmaanamloo bhaagam kavadam dwara radiation namuunaanu prabhaavitam chestayani grahistaaru. sthaanikamgaa laeni konni nirmaanaalu kooda eee vastuvulaku kaaranamavutaayi mariyu addanki mariyu 'rii-radiation' thoo sahaa marinni. deenni drushtilo unchukuni, ganana gajibijigaa maaravacchu.
semlo bahula algorithamlu unnaayi. veetilo moments methed (maam), finite element methed (fem) mariyu unifam theory off defraction (yutidi) unnaayi conny veetike parimitam kaadu. free-spacelo eee paddhatulanu upayoginche software pyaakaejeelaku rendu udaaharanalu pheko mariyu whip-dii. ikkada chuupina udaaharanalu whip-dii nundi vachayi. dayachesi gurthunchukondi, eee software pyaakaejeelanu prakriyanu ardham chesukunna mariyu lekkinchinadi nijamainadaa ledhaa modal mariyu input detaalo lopam tappudu avtput daetaanu utpatti chesinda anie nirnayinchagala evarainaa upayoginchaali (chettanu chettagaa samanam anie paatha saameta).
dual byaand blade antenna udaaharana.
eee udaaharana biomedical telemetry kosam 460 mhz vadda sumaru frequency kosam oka designu upayogistundi mariyu oke packagelo gps frequency ell1 (1575.42 emhechz) (neenu oke antenna cheppadaniki sankochistunnanu endukante rendu radiating elements unnaayi, dheeniki rendu baalanlu saripoyela avasaram). ivi yea transmission lineku saripovani dayachesi gurthunchukondi. anduvalla, design upayogam kosam aacharanatmakamgaa undadu. idhi pradarsana prayojanaala kosam matrame.
krinda meeru anukaranala kosam upayoginche saralamaina vaatini chuustaaru. bhuusthaayi vimanam 460 mhz vadda tarangadairghyaaniki rettimpu untundi.
blade mariyu slat rendintikee l1 vadda kshitija samaantara radiation namuunaala poolika krinda undhi. slat manchi laabhamtho 8 dvidhruva namuunaanu pradarsistundi. blade inca prasaristunnappatiki, geyin takkuvagaa untundi mariyu namuunaa chaalaa lobeegaa undi shoonyaalanu srushtistundi. dayachesi gamaninchandi, pedda chitram kosam, prati sheershikalooni linknu anusarinchandi ledhaa chitrampai click cheyandi (meeru chitraanni click chesthe adhi merugaina naanhyatanu kaligi untundi).
rendu muulakaala dhruveekarananu kooda gamaninchavacchu. mundu cheppinatlugaa, slat yokka dhruveekarana daani feed kaaranamgaa untundi, idhi saadhaaranamgaa atichinna sarala parimaanamlo untundi. anduvalla, eee slat ground plain kuu sambandhinchi addamgaa dhruveekarinchabadindi mariyu ground plain kuu sambandhinchi blade niluvugaa dhruveekarinchabadindi.
ikkada manam 460 mhz kosam niluvugaa dhruveekruta radiation namuunaalu ledhaa vpol nii chustunnamu.
ikkada pradarsinchinappudu blade mariyu slat elements rendintikee hpol radiation namuunaanu chudavachu.
mugimpu.
munupati vibhagam prakaram, dual byaand blade antenna dhruvanata vaividhyamgaa alaage dual bandga undavacchani chudavachu. eee udaaharana kosam enchukunna byaandlu frequencylo saapekshamgaa daggaragaa untaayi mariyu atuvanti parikaram yokka saktiki paelavamaina udaaharananu istayi, ayinappatikee idhi emi puurti cheyavacho chakkaga vivaristundi. taginanta real estate ichinatlayithe, manchi coverage mariyu vyatiraeka dhruveekaranatho rendu chaalaa vibhinnamaina byaandlanu cover cheyavachu.
takkuva frequency monopole yokka radiation namuunaapai deerghachaturasraakaara slat radiating element prabhavam chaalaa takkuvagaa undani kooda idhi spashtamgaa vivaristundi. blade yokka operation frequencylo padava vanthu kante slaatnu takkuvagaa unchadam telivainadani gatamlo perkonna brotanavella niyamam perkonadam dheeniki kaaranam. anduvalla, aaa frequency slaatnu 'chudadu'.
eee paddhatiloo rendu amsaalanu kalapadam dwara, okati tayaareeloo kharchulanu aadaa chestundi mariyu antennanu amarchadamlo real estatenu aadaa chestundi. prati vikiranam moolakam ververu feed nirmaanaanni kaligi undaali mariyu chaalaa matuku ververu saripolika netvarknu kaligi undaali anie mallii perkonadam gamaninchadagga vishayam.

