Mwachidule yambitsani coupler yolunjika

1.Mu kachitidwe ka microwave, nthawi zambiri ndikofunikira kugawa njira imodzi ya mphamvu ya microwave munjira zingapo molingana, lomwe ndi vuto la kugawa mphamvu.Zigawo zomwe zimazindikira ntchitoyi zimatchedwa magawo ogawa mphamvu, makamaka kuphatikiza ma coupler owongolera, chogawa mphamvu ndi zida zosiyanasiyana zanthambi ya microwave.Zigawozi nthawi zambiri zimakhala zolumikizana ndi ma multi-port mutual instrument network, kotero lingaliro la netiweki ya microwave lingagwiritsidwe ntchito kusanthula.Directional coupler ndi gawo la madoko anayi lomwe lili ndi mawonekedwe olowera.Amapangidwa ndi mapeyala awiri a njira zopatsirana zolumikizidwa ndi zida zolumikizira.

2.Maguluwa amatengera njira yolumikizirana, kuphatikiza ma co-directional coupler ndi reverse directional coupler.Kutengera mtundu wake wotumizira, imatha kugawidwa kukhala ma waveguide directional coupler, coaxial directional coupler, stripline kapena microstrip directional coupler.Malinga ndi mphamvu zawo zolumikizirana, amatha kugawidwa kukhala ophatikizana amphamvu komanso ofooka otsogolera.Nthawi zambiri, ma couplers olunjika monga 0dB ndi 3dB ndi ophatikizana amphamvu, ma couplers olunjika monga 20dB ndi 30dB ndi omangika ofooka, ndipo ma coupler olunjika omwe ali ndi mainchesi a dB ndi ophatikizana apakatikati.Malinga ndi mphamvu zawo zoberekera, amatha kugawidwa m'magawo ocheperako amphamvu komanso owongolera mphamvu kwambiri.Malinga ndi gawo lotulutsa la chipangizocho, pali cholumikizira cha 90 ° chowongolera.

3.Performance index Performance index of directional coupler: coupling degree isolation degree orientation degree input standing wave ratio working bandwidth