Achogawa mphamvuimagawa chizindikiro cholowera m'ma signal awiri (kapena angapo) otulutsa. Pachifukwa chabwino, chogawa mphamvu chingaganizidwe kuti sichinatayike, koma nthawi zonse pamakhala kutayika kwa mphamvu. Chifukwa ndi netiweki yobwezerana, chophatikiza mphamvu chingagwiritsidwenso ntchito ngati chophatikiza mphamvu, pomwe ma doko awiri (kapena angapo) amagwiritsidwa ntchito kuphatikiza ma signal olowera mu output imodzi. Mwachiphunzitso, chogawa mphamvu ndi chophatikiza mphamvu zitha kukhala gawo lomwelo, koma m'machitidwe pakhoza kukhala zofunikira zosiyanasiyana za zophatikiza ndi zogawa, monga kusamalira mphamvu, kufananiza magawo, kufananiza ma port ndi kudzipatula.
Zogawa mphamvu ndi zophatikiza nthawi zambiri zimatchedwa zogawa mphamvu. Ngakhale izi ndi zolondola mwaukadaulo, mainjiniya nthawi zambiri amasunga mawu oti "splitter" kutanthauza kapangidwe kotsika mtengo koteteza mphamvu komwe kamagawa mphamvu pa bandwidth yayikulu kwambiri, koma kumakhala ndi kutayika kwakukulu komanso kugwiritsa ntchito mphamvu pang'ono.
Mawu oti "wogawa" nthawi zambiri amagwiritsidwa ntchito pamene chizindikiro cholowera chidzagawidwa mofanana pa zotuluka zonse. Mwachitsanzo, ngati pali ma doko awiri otulutsa, chilichonse chidzapeza zochepa pang'ono kuposa theka la chizindikiro cholowera, makamaka -3 dB poyerekeza ndi chizindikiro cholowera. Ngati pali ma doko anayi otulutsa, doko lililonse lidzapeza pafupifupi kotala la chizindikiro, kapena -6 dB poyerekeza ndi chizindikiro cholowera.
Kudzipatula
Posankha mtundu wa chogawaniza kapena chophatikiza chomwe mungagwiritse ntchito, ndikofunikira kuganizira za kudzipatula. Kudzipatula kwakukulu kumatanthauza kuti zizindikiro zamwadzidzidzi (mu chophatikiza) sizimasokonezana, ndipo mphamvu iliyonse yomwe sinatumizidwe ku chotulutsa imatayika m'malo motumizidwa ku doko lotulutsa. Mitundu yosiyanasiyana ya zogawaniza imagwira ntchito izi m'njira zosiyanasiyana. Mwachitsanzo, mu chogawaniza cha Wilkinson, chotsutsa chimakhala ndi mtengo wa 2Z0 ndipo chimamangiriridwa pazotulutsa. Mu cholumikizira cha quadrature, doko lachinayi limakhala ndi terminal. Kutha kwa terminal sikutaya mphamvu pokhapokha ngati china chake choipa chachitika, monga amp imodzi yalephera kapena ma amplifiers ali ndi magawo osiyanasiyana.
Mitundu ya Ogawa
Pali mitundu yambiri ya ma power dividers kapena ma combiners. Ena mwa omwe ndi odziwika bwino ndi awa:
Wogawaniza wa Wilkinson amagawa chizindikiro cholowera m'ma signal awiri ofanana a gawo lotulutsa, kapena kuphatikiza ma signal awiri ofanana a gawo kukhala chimodzi chosiyana. Wogawaniza wa Wilkinson amadalira ma transformer a ma quarter-wave kuti agwirizane ndi doko logawanika. Choletsa chimayikidwa kudutsa zotuluka, komwe sichimavulaza chizindikiro cholowera pa Port 1. Izi zimathandizira kwambiri kudzipatula ndipo zimalola ma doko onse kuti azigwirizana ndi impedance. Mtundu uwu wa chogawaniza nthawi zambiri umagwiritsidwa ntchito m'ma system a ma radio frequency ambiri chifukwa umapereka kudzipatula kwakukulu pakati pa ma port otulutsa. Mwa kugawa magawo ambiri a ma quarter-wave, Wilkinson amatha kuthana mosavuta ndi ma bandwidth a 9:1 a machitidwe ankhondo zamagetsi.
Monga momwe dzinalo likusonyezera, chogawa mphamvu cha RF/microwave chidzagawa chizindikiro cholowera m'ma siginecha awiri ofanana komanso ofanana (monga mu gawo). Chingagwiritsidwenso ntchito ngati chophatikiza mphamvu, pomwe doko lofala ndi chotulutsa ndipo ma doko awiri ofanana amagetsi amagwiritsidwa ntchito ngati zolowetsa. Mafotokozedwe ofunikira akagwiritsidwa ntchito ngati chogawa mphamvu akuphatikizapo kutayika kwa kulowetsa, kuchuluka kwa amplitude ndi gawo pakati pa mikono, ndi kutayika kobwerera. Pa kuphatikiza mphamvu kwa zizindikiro zosagwirizana, kufotokozera kofunikira kwambiri ndi kudzipatula, komwe ndi kutayika kwa kulowetsa kuchokera ku doko limodzi lamagetsi lofanana kupita ku lina.
Zogawa MphamvuMawonekedwe
• Zogawa mphamvu zingagwiritsidwe ntchito ngati zophatikiza kapena zogawa
• Magawo amagetsi a Wilkinson ndi High isolation amapereka njira yodzipatula kwambiri, yoletsa kulankhulana pakati pa ma doko otulutsa
• Kuyika kochepa ndi kutayika kobwerera
• Wilkinson ndi zogawa mphamvu zotsutsa zimapereka mphamvu zabwino kwambiri (<0.5dB) amplitude ndi (<3°) phase balance
Si Chuan Keenlion Microwave ndi makina ambiri ogawa magetsi a njira ziwiri mu mawonekedwe a narrowband ndi broadband, omwe amaphimba ma frequency kuyambira DC 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.
Mayunitsi amabwera ndi zolumikizira zachikazi za SMA kapena N, kapena zolumikizira za 2.92mm, 2.40mm, ndi 1.85mm za zida zama frequency apamwamba.
Tikhozanso kusintha chogawa mphamvu malinga ndi zomwe mukufuna. Mutha kulowa patsamba losinthira kuti mupereke zofunikira zomwe mukufuna.
Nthawi yotumizira: Ogasiti-09-2022
