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Anteenooyinka Hagaha Hawada ee Slotted - Mabaadi'da Naqshadeynta

Jaantuska 1aad wuxuu muujinayaa jaantuska hagaha hirarka ee caadiga ah, kaas oo leh qaab-dhismeed hagaha hirarka oo dheer oo cidhiidhi ah oo leh god dhexe. Godkan waxaa loo isticmaali karaa in lagu gudbiyo hirarka elektromagnetic-ka.

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Jaantuska 1. Joomatari ee anteenooyinka hagaha hirarka ee ugu badan.

Anteenada hore (Y = 0 wejiga furan ee ku jira diyaaradda xz) ayaa la quudiyaa. Dhamaadka fog badanaa waa wareeg gaaban (xarun bir ah). Hagaha hirarka waxaa ku kici kara dipole gaaban (oo laga arkay dhabarka anteenada godka godka) ee ku taal bogga, ama hagaha hirarka kale.

Si aan u bilowno falanqaynta anteenada Jaantuska 1aad, aan eegno qaabka wareegga. Hagaha hirarka laftiisu wuxuu u shaqeeyaa sidii xariiq gudbin, godadka ku jira hagaha hirarkana waxaa loo arki karaa inay yihiin marinno is barbar socda (isku mid ah). Hagaha hirarka waa mid gaaban, sidaa darteed qaabka wareegga qiyaas ahaan waxaa lagu muujiyay Jaantuska 1aad:

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sawirka 2. Qaabka wareegga ee anteenada hagaha hirarka ee daloolsan.

Meesha ugu dambeysa waa masaafada "d" ilaa dhammaadka (taas oo ah mid gaaban, sida ku cad Jaantuska 2), qaybaha godkana waxaa loo kala fogeeyay masaafada "L" midba midka kale.

Cabbirka godka ayaa hagi doona hirarka. Lugta hirarka hagaha waa hirarka ku jira hagaha hirarka. Mowjadda hagaha ( ) waa shaqo u dhiganta ballaca hagaha hirarka ("a") iyo hirarka booska bannaan. Habka TE01 ee ugu badan, hirarka hagitaanka waa:

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Masaafada u dhaxaysa booska ugu dambeeya iyo dhammaadka "d" waxaa badanaa loo doortaa inay tahay hirarka rubuc. Xaaladda aragtiyeed ee khadka gudbinta, khadka is-hortaagga wareegga gaaban ee rubuc-hirarka ee loo gudbiyo hoos waa wareeg furan. Sidaa darteed, Jaantuska 2 wuxuu hoos ugu dhacayaa:

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sawirka 3. Qaabka wareegga hagaha hirarka ee la dalooliyay iyadoo la adeegsanayo isbeddelka hirarka rubuc-hirarka.

Haddii halbeegga "L" loo doorto inuu yahay nus hirar, markaa iska caabinta ž ohmic ee gelinta waxaa lagu arkayaa masaafada nus hirarka z ohms. "L" waa sabab ay naqshaddu u noqoto qiyaastii nus hirar. Haddii anteenada godka hagaha hirarka loo qaabeeyey sidan, markaa dhammaan boosaska waxaa loo tixgelin karaa kuwo is barbar socda. Sidaa darteed, gelitaanka gelinta iyo iska caabinta gelinta ee safka daloolka ee curiyaha "N" si dhakhso ah ayaa loo xisaabin karaa:

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Impedance-ka gelinta ee hagaha hirarka waa shaqo ka mid ah Impedance-ka booska.

Fadlan ogow in xuduudaha naqshadda kor ku xusan ay ansax yihiin oo keliya hal mar oo keliya. Marka soo noqnoqoshadu halkaas ka soo baxdo, naqshadda hagaha hirarka ayaa shaqayn doonta, waxaa jiri doona burbur ku yimaada waxqabadka anteenada. Tusaale ahaan ka fikirka astaamaha soo noqnoqoshada hagaha hirarka daloolsan, cabbiraadda muunad ahaan shaqo soo noqnoqosha ah ayaa lagu muujin doonaa S11. Hagaha hirarka waxaa loogu talagalay inuu ku shaqeeyo 10 GHz. Tan waxaa lagu shubaa quudinta isku-xidhka hoose, sida ku cad Jaantuska 4.

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Jaantuska 4. Anteenada hagaha hirarka ee daloolsan waxaa quudiya quudin isku xiran.

Shaxda S-parameter-ka ee ka dhalatay ayaa hoos lagu muujiyey.

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FIIRO GAAR AH: Anteenadu waxay leedahay hoos u dhac aad u weyn oo ku yimaada S11 qiyaastii 10 GHz. Tani waxay muujinaysaa in inta badan isticmaalka korontada lagu shubo inta jeer ee la isticmaalo. Baaxadda anteenada (haddii lagu qeexo S11 waa ka yar tahay -6 dB) waxay ka bilaabataa qiyaastii 9.7 GHz ilaa 10.5 GHz, taasoo siinaysa baaxadda jajaban ee 8%. Xusuusnow in sidoo kale ay jirto resonance ku dhawaad ​​​​6.7 iyo 9.2 GHz. Ka hooseeya 6.5 GHz, ka hooseeya inta jeer ee hagaha mawjadaha la jarayo oo ku dhawaad ​​​​tamar ma jirto. Sawirka S-parameter ee kor lagu muujiyay wuxuu bixinayaa fikrad wanaagsan oo ah sifooyinka soo noqnoqda hagaha mawjadaha la jaray ee bandwidth-ka.

Qaabka shucaaca saddex-geesoodka ah ee hagaha hirarka daloolsan ayaa hoos lagu muujiyay (tan waxaa lagu xisaabiyay iyadoo la adeegsanayo xirmo elektromagnetic ah oo tiro ahaan loo yaqaan FEKO). Faa'iidada anteenadani waa qiyaastii 17 dB.

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Ogsoonow in diyaaradda XZ (H-plane), balaca galka uu aad u cidhiidhi yahay (2-5 digrii). diyaaradda YZ (ama E-plane), balaca galka ayaa aad u weyn.

Soo bandhigida wax soo saarka taxanaha Antenna Waveguide Slotted:

 
 
 

RM-SWA910-22,9-10GHz


Waqtiga boostada: Jan-05-2024

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