Momwe mungasankhire RF Coaxial switch?

Kusintha kwa coaxial ndi njira yolumikizira ma electromechanical yomwe imagwiritsidwa ntchito posinthira ma siginecha a RF kuchokera kunjira ina kupita ku ina.Kusintha kwamtunduwu kumagwiritsidwa ntchito kwambiri pamasinthidwe omwe amafunikira pafupipafupi, mphamvu yayikulu, komanso magwiridwe antchito apamwamba a RF.Amagwiritsidwanso ntchito pafupipafupi pamakina oyesera a RF, monga tinyanga, kulumikizana kwa satellite, matelefoni, masiteshoni oyambira, ma avionics, kapena mapulogalamu ena omwe amafunikira kusintha ma siginecha a RF kuchokera mbali imodzi kupita kwina.

Sinthani doko
NPMT: kutanthauza n-pole m-kuponya, kumene n ndi chiwerengero cha madoko olowera ndipo m ndi chiwerengero cha madoko otuluka.Mwachitsanzo, chosinthira cha RF chokhala ndi doko limodzi lolowera ndi madoko awiri otuluka amatchedwa kuponya kamodzi, kapena SPDT/1P2T.Ngati RF switch ili ndi cholowetsa chimodzi ndi zotuluka 6, ndiye kuti tifunika kusankha SP6T RF switch.

Makhalidwe a RF
Nthawi zambiri timaganizira zinthu zinayi: Insert loss, VSWR, Isolation and Power.

Mtundu wa pafupipafupi:
Titha kusankha coaxial switch molingana ndi kuchuluka kwa ma frequency a system yathu.Ma frequency apamwamba omwe titha kupereka ndi 67GHz.Nthawi zambiri, timatha kudziwa kuchuluka kwa kusintha kwa coaxial kutengera mtundu wake wolumikizira.
Cholumikizira cha SMA: DC-18GHz/DC-26.5GHz
N cholumikizira: DC-12GHz
Cholumikizira cha 2.92mm: DC-40GHz/DC-43.5GHz
Cholumikizira cha 1.85mm: DC-50GHz/DC-53GHz/DC-67GHz
Cholumikizira cha SC: DC-6GHz

Avereji yamphamvu: Pansipa chithunzi chikuwonetsa masiwichi amagetsi apakati a db.

Voteji:
Kusintha kwa coaxial kumaphatikizapo koyilo yamagetsi ndi maginito, zomwe zimafuna magetsi a DC kuyendetsa chosinthira kupita kunjira yofananira ya RF.Mitundu yamagetsi yomwe imagwiritsidwa ntchito kwambiri posinthira coaxial ndi motere: 5V.12V.24V.28V.Nthawi zambiri makasitomala sangagwiritse ntchito voteji ya 5V mwachindunji.Timathandizira njira ya TTL kulola voteji yotsika ngati 5v kuwongolera kusintha kwa RF.

Mtundu wagalimoto:
Failsafe: Ngati palibe magetsi owongolera kunja, njira imodzi imakhala ikuchita nthawi zonse.Onjezani magetsi akunja, njira ya RF imayendetsedwa ndi ina.Magetsi akadulidwa, njira yakale ya RF ikuchita.
Latching: Chosinthira chamtundu wa latching chimafunikira magetsi mosalekeza kuti njira yowonekera ya RF igwire.Mphamvu yamagetsi ikatha, kuyendetsa kwa latching kumatha kukhalabe komaliza.
Nthawi zambiri Otsegula: Njira yogwirira ntchitoyi ndi yoyenera kwa SPNT yokha.Popanda magetsi owongolera, ma switch onse sakuyenda;Onjezani magetsi akunja ndikusankha njira yodziwika yosinthira;Pamene magetsi akunja sakugwiritsidwa ntchito, kusinthako kumabwerera kumalo kumene ma channels onse sakuyenda.

Chizindikiro: Ntchitoyi imathandizira kuwonetsa mawonekedwe a switch.