Wogawa mphamvu wa Wilkinsonndi dera logawa mphamvu. Pamene madoko onse agwirizana, amatha kudzipatula pakati pa madoko awiri otulutsa. Ngakhale kuti Wilkinson power divider ingapangidwe kuti igwire ntchito yogawa mphamvu iliyonse (mwachitsanzo, onani Pozar [1]), chitsanzo ichi chidzaphunzira nkhani ya kugawa kofanana (3dB). FDTD idzagwiritsidwa ntchito kupeza magawo ogawa a chipangizocho.
Wogawa mphamvu wa WilkinsonZokonda za Analogi
Gulu la kapangidwe ka "trace and load" limagwiritsidwa ntchito mu fayilo ya FDTD yoyeserera Wilkinson_ power_ divider. Ma parameter amagetsi ndi amagetsi a Wilkinson power divider amamangidwa ndikuyikidwa mu fsp. Mzere wotumizira wa microstrip umapangidwa pogwiritsa ntchito mbale yozungulira ya rectangular conductor (PEC) yokhala ndi miyeso iwiri yokhazikika yomwe imayikidwa pa substrate yokhuthala ya 1.59mm yokhala ndi dielectric constant ya 2.2. M'lifupi wofunikira wa gawo lililonse la mzere wotumizira umawerengedwa pogwiritsa ntchito equation. 3.195 ndi 3.197 mu Pozar [1] (onani fayilo ya script ya microstrip.lms mu chitsanzo cha microstrip) ndi 4.9mm (Z0=50 ohms) ndi 2.804 mm (√ 2Z0=70.7 ohms) motsatana. Mzere wotumizira wa mafunde a kotala umapangidwa pogwiritsa ntchito ma polygon a 2D opangidwa kukhala mphete. 3.194 mu Pozar [1] ndi λ g/4=55.5 mm. Chotsutsacho chimapangidwa pogwiritsa ntchito mbale ya rectangular ya 2D yomwe imafotokoza chinthu chokhala ndi R=100 ohms.
Madoko amaikidwa pa ma input ndi output traces kuti alowetse ma transmission line mode mu frequency range ya 0.5 - 1.5 GHz ndikuwerengera magawo ofalikira a chipangizocho. Kuti mudziwe zambiri pa makonda ake, onani tsamba la Madoko. Monga tafotokozera pansipa, source port idzasinthidwa pamanja kuti igwire ntchito ndi fire port imodzi panthawi.
Malo ophimba maukonde amayikidwa pa njanji iliyonse kuti athetse kutalika ndi m'lifupi mwake. Kapangidwe ka kupindika ndi angular ka trace ya nthambi kumafuna kuti kukula kwa gridi mu njira za x ndi y kukhale kofanana (dx=dy). Izi sizikutanthauza kuti njira zodyetsera ndi zotuluka zigwirizane ndi mzere wa coordinate. Kopi ya malo ophimba maukonde omwe amagwiritsidwa ntchito potsata nthambi imayikidwa kumanja kwa trace yotulutsa kuti ikhale ndi maukonde ofanana.
Mkhalidwe wa malire a PML absorption umazungulira dera lonse loyeserera, kupatula malire a z-minimum, omwe amatchulidwa ngati mkhalidwe wa malire achitsulo womwe umayeserera ndege yoyambira ya chingwe chotumizira cha microstrip.
Wogawa mphamvu wa Wilkinson Zotsatira ndi kusanthula
Chithunzi pamwambapa chikuwonetsa momwe ma frequency a scattering parameters amagwiritsidwa ntchito poyesa kusiyanitsa ndi kufalitsa komanso kugawa kwa magetsi pa 1GHz. Manambalawa amapangidwa ndi script pambuyo poti kuyeserera kwatha. Tiyenera kudziwa kuti zotsatirazi zitha kupezeka pa trajectory pogwiritsa ntchito ma meshes opyapyala kuposa omwe atchulidwa mu fayilo yoyeserera.
AnalogiWogawa mphamvu wa Wilkinsonimagwirizana bwino ndi madoko ake olowera (S11=- 40dB, f=1.0GHz) ndi otulutsa (S22=- 32dB, f=1GHz), ili ndi kusiyanitsa kwabwino (S32=- 43dB, f=1GHz), ndipo ma frequency ake apakati ndi 1.01GHz, omwe ali mkati mwa 1% ya ma frequency ogwiritsira ntchito kapangidwe ka 1GHz. Kuphatikiza apo, tawona kugawa mphamvu kofanana kwa 3dB (S31=- 3dB pa f=1GHz) ndi kusintha kosakwana 10% mu gulu la ma frequency a analog.
Si Chuan Keenlion Microwave ndi makina ambiri osankhidwa m'makonzedwe a narrowband ndi broadband, okhala ndi ma frequency kuyambira 0.5 mpaka 50 GHz. Amapangidwira kuti azitha kugwiritsa ntchito mphamvu yolowera ya ma watts 10 mpaka 30 mu makina otumizira mawaya 50. Mapangidwe a microstrip kapena stripline amagwiritsidwa ntchito, ndipo amakonzedwa kuti agwire ntchito bwino kwambiri.
Tikhozanso kusintha Power Divider malinga ndi zomwe mukufuna. Mutha kulowa mutsamba losinthira kuti likupatseni zofunikira zomwe mukufuna.
Sichuan Keenlion Microwave Technology Co., Ltd.
Imelo:
sales@keenlion.com
tom@keenlion.com
Nthawi yotumizira: Dec-06-2022
