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Zotetezera Zokonzedwa USB RF Digital Step USB Yolamulidwa
Zochepetsera mphamvu zamagetsi zomwe zimakonzedwa ndi zipangizo zamagetsi zomwe zimathandiza kuwongolera digito komanso kusintha molondola kuchuluka kwa mphamvu zamagetsi.
Kawirikawiri amakhala ndi ma attenuator angapo omwe amawongoleredwa ndi zizindikiro za digito. Ma attenuator okonzedwa amatha kuwongoleredwa kudzera mu RS-232 kapena USB interfaces, zomwe zimapangitsa kuti zikhale zosavuta kuphatikiza mu machitidwe akuluakulu. Poyerekeza ndi ma attenuator osinthika amanja, amapereka kulondola kwapamwamba komanso kubwerezabwereza, zomwe ndizothandiza kwambiri pamapulogalamu omwe amafunikira kusintha pafupipafupi kapena kusintha bwino.
Ma attenuator a RF omwe angakonzedwe ali ndi makhalidwe awa:
1. Kukonza Mapulogalamu: Zizindikiro za digito kapena za analogi zingagwiritsidwe ntchito kuwongolera kuchepa kwa mphamvu, kukwera, ndi kusinthana pakati pa milingo ndi njira zosiyanasiyana zochepetsera mphamvu.
2. Kukhazikika: USB RF Digital Step Attenuator ili ndi mphamvu yokhazikika yochepetsera kutentha ndipo nthawi zambiri sikhudzidwa ndi kutentha kapena zinthu zina zachilengedwe.
3. Kuchita bwino kwambiri: M'magawo osiyanasiyana amagetsi aukadaulo, USB attenuator ili ndi mgwirizano wabwino wa Electromagnetic, kufanana, kutayika kochepa kwa insertion ndi magwiridwe ena abwino kwambiri.
4. Kuchepetsa mphamvu ya chipangizo: Chochepetsera mphamvu cha USB cholamulidwa ndi USB chingaphatikizidwe m'maphukusi ang'onoang'ono ndipo chili ndi kukula kochepa kwambiri.
Zotchingira zowongolera za USB zomwe zimayendetsedwa ndi mapulogalamu nthawi zambiri zimagwiritsidwa ntchito kutsanzira zochitika zenizeni za kuchepetsa chizindikiro ndikutsimikizira magwiridwe antchito a zida pansi pa mikhalidwe yosiyanasiyana ya mphamvu ya chizindikiro. Zimagwiritsidwa ntchito kwambiri mu mapulogalamu, machitidwe olumikizirana opanda zingwe, komanso kapangidwe ndi kuyesa ma circuits amagetsi ndi zigawo zake.
Makamaka, pulogalamu ya RF attenuator ikuphatikizapo:
1. Njira yolumikizirana: Gwiritsani ntchito chochepetsera mphamvu ya ma siginolo opanda zingwe kuti mupewe kukhudzidwa ndi ma siginolo amphamvu kwambiri pazida ndi makina.
2. Kuyeza zida: Gwiritsani ntchito chochepetsera masitepe chomwe chingakonzedwe kuti musinthe ma frequency molondola komanso kuchepetsa kuti mukwaniritse zofunikira zoyesera.
3. Zamlengalenga: Mu ndege, ukadaulo wa zakuthambo, ndi zida zoyendera, chochepetsera ma step a USB RF digital step chimagwiritsidwa ntchito poyesa ma circuit calibration ndi kuchepetsa ma attenuation.
4. Wailesi: Chotetezera mawailesi cha USB chimagwiritsidwa ntchito mumakampani opanga mawailesi kuti chiziwongolera ndikuchepetsa ma siginolo.
Qualwaveimapereka ma programmable band ndi ma dynamic range apamwamba kwambiri pa ma frequency mpaka 40GHz. Sitepe ikhoza kukhala 0.5dB ndipo ma attenuation range akhoza kukhala 80dB kapena kuposerapo. Ma programmable-attenuator athu amagwiritsidwa ntchito kwambiri m'malo ambiri.
Nambala ya Gawo | Kuchuluka kwa nthawi(GHz, mphindi.)  | Kuchuluka kwa nthawi(GHz, max.) | Kuchepetsa Kuchepa kwa Mphamvu(dB) | Gawo(dB, mphindi.) | Kulondola(+/-) | Kutayika kwa Kuyika(dB, max.) | VSWR | Nthawi Yosinthira(nS, max.) | Mphamvu(dB, max.) | Nthawi yotsogolera(masabata) |
|---|---|---|---|---|---|---|---|---|---|---|
| QPRA-9K-8000-80-1 | 9K | 8 | 0~80 | 1 | ±3dB | 9.5 | 2 | - | 24 | 3~6 |
| QPRA-20-18000-63.75-0.25 | 0.02 | 18 | 0~63.75 | 0.25 | ±2dB | 8 | 2 | - | 25 | 3~6 |
| QPRA-500-40000-63.5-0.5 | 0.5 | 40 | 0~63.5 | 0.5 | ±2dB | 12 | 2 | - | 25 | 3~6 |
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