Magawo a magwiridwe antchito a RF switch

Ma RF ndi ma microwave amatha kutumiza ma siginecha bwino panjira yopatsira.Ntchito zosinthira izi zitha kudziwika ndi magawo anayi amagetsi.Ngakhale magawo angapo amakhudzana ndi magwiridwe antchito a RF ndi ma microwave, magawo anayi otsatirawa amawonedwa kuti ndi ofunikira chifukwa chakulumikizana kwawo mwamphamvu:

Kudzipatula
Kudzipatula ndiko kuchepetsa pakati pa kulowetsa ndi kutuluka kwa dera.Ndilo muyeso wa kudulidwa kwamphamvu kwa switch.

Kutayika kolowetsa
Kutayika koyika (komwe kumadziwikanso kuti kutayika kwapatsira) ndi mphamvu yonse yomwe imatayika pomwe chosinthira chili m'malo.Kutayika koyika ndiye gawo lofunikira kwambiri kwa opanga chifukwa kumatha kubweretsa mwachindunji kuchuluka kwa phokoso ladongosolo.

Kusintha nthawi
Kusintha nthawi kumatanthauza nthawi yofunikira kuti musinthe kuchoka pa "kuya" kupita ku "zimitsa" komanso kuchoka ku "zimitsa" kupita kugawo "pa".Nthawi ino imatha kufikira ma microseconds a switch yamphamvu kwambiri ndi ma nanoseconds amagetsi otsika kwambiri.Tanthauzo lodziwika bwino la nthawi yosinthira ndi nthawi yofunikira kuchokera pamagetsi owongolera omwe amafika 50% mpaka mphamvu yomaliza ya RF yofikira 90%.

Mphamvu processing mphamvu
Kuphatikiza apo, mphamvu yogwiritsira ntchito mphamvu imatanthauzidwa ngati mphamvu yayikulu yolowera ya RF yomwe switch imatha kupirira popanda kuwonongeka kwamagetsi kosatha.

Solid state RF switch
Ma switch a Solid state RF amatha kugawidwa m'mitundu yosawonetsa komanso mtundu wowunikira.Chosinthira chosawonetsa chili ndi cholumikizira chofananira cha 50 ohm pa doko lililonse lotulutsa kuti chikwaniritse chiwongola dzanja chochepa cha voltage Stand wave ratio (VSWR) m'maboma onse akunja ndi kunja.Chotsekereza cholumikizira chomwe chili padoko lotulutsa chimatha kuyamwa mphamvu yazizindikiro, pomwe doko lopanda chopinga chofananira chimawonetsa chizindikirocho.Pamene chizindikiro cholowetsa chiyenera kufalitsidwa mu chosinthira, doko lotseguka lomwe lili pamwambali limachotsedwa pazitsulo zofananira ndi terminal, motero zimalola mphamvu ya siginecha kuti ifalikire kwathunthu kuchokera pakusintha.Kusintha kwa mayamwidwe ndikoyenera kugwiritsa ntchito pomwe chiwonetsero cha echo cha gwero la RF chiyenera kuchepetsedwa.

Mosiyana ndi izi, ma switch owunikira alibe zida zopinga ma terminal kuti achepetse kutayika kwa madoko otseguka.Masiwichi owunikira ndi oyenera kugwiritsa ntchito zomwe sizikhudzidwa ndi kuchuluka kwa mafunde amagetsi okwera kunja kwa doko.Kuphatikiza apo, mu switch yowunikira, kufananitsa kwa impedance kumazindikirika ndi zigawo zina kupatula doko.

Chinthu chinanso chodziwika bwino cha masiwichi olimba-boma ndi mabwalo awo oyendetsa.Mitundu ina ya ma switch a solid-state imaphatikizidwa ndi ma drive oyendetsa magetsi olowera.Magawo owongolera magetsi oyendetsa ma driver awa amatha kukwaniritsa ntchito zina zowongolera - kupereka zofunikira pakalipano kuwonetsetsa kuti diode imatha kupeza voliyumu yakumbuyo kapena kutsogolo.

Ma switch a Electromechanical ndi solid-state RF amatha kupangidwa kukhala zinthu zosiyanasiyana zokhala ndi ma CD osiyanasiyana komanso mitundu yolumikizira - zinthu zambiri zosinthira ma coaxial zokhala ndi ma frequency ogwiritsira ntchito mpaka 26GHz zimagwiritsa ntchito zolumikizira za SMA;Kufikira 40GHz, 2.92mm kapena cholumikizira chamtundu wa K chidzagwiritsidwa ntchito;Kufikira 50GHz, gwiritsani ntchito cholumikizira cha 2.4mm;Kufikira 65GHz gwiritsani ntchito zolumikizira za 1.85mm.

 
Tili ndi mtundu umodzi53GHz LOAD SP6T Coaxial Switch:
Mtundu:
53GHzLOAD SP6T coaxial switch
Mafupipafupi ogwira ntchito: DC-53GHz
RF cholumikizira: Mkazi 1.85mm
Kachitidwe:
Kudzipatula kwakukulu: zazikulu kuposa 80 dB pa 18GHz, zazikulu kuposa 70dB pa 40GHz, zazikulu kuposa 60dB pa 53GHz;
Low VSWR: zosakwana 1.3 pa 18GHz, zosakwana 1.9 pa 40GHz, zosakwana 2.00 pa 53GHz;
Low Ins.less: zosakwana 0.4dB pa 18GHz, zosakwana 0.9dB pa 40GHz, zosakwana 1.1 dB pa 53GHz.

Takulandilani kugulu laogulitsa kuti mumve zambiri!