Nigute ushobora guhitamo RF ya sisitemu muri sisitemu yo kugerageza byikora?

Muri sisitemu yo gupima microwave, RF na microwave byahinduwe bikoreshwa cyane mugukoresha ibimenyetso hagati yibikoresho na DUTs.Mugushira sisitemu muri sisitemu ya matrix, ibimenyetso biva mubikoresho byinshi birashobora kunyuzwa kuri DUT imwe cyangwa nyinshi.Ibi bituma ibizamini byinshi birangira ukoresheje igikoresho kimwe cyo kugerageza bitabaye ngombwa ko uhagarika kenshi kandi ugahuza.Kandi irashobora kugera kuri automatike yuburyo bwo kwipimisha, bityo igatezimbere imikorere yikizamini mubidukikije.

Ibipimo byingenzi byerekana imikorere yo guhindura ibice

Muri iki gihe inganda zihuta cyane zisaba gukoresha ibikoresho byinshi kandi bisubirwamo bisubirwamo mubikoresho byo kwipimisha, guhinduranya interineti, hamwe na sisitemu yo kwipimisha mu buryo bwikora.Ihinduranya risobanurwa ukurikije ibiranga ibi bikurikira:

Ikirangantego

Imirongo yumurongo wa RF na microwave ikoreshwa kuva kuri 100 MHz muri semiconductor kugeza kuri 60 GHz mu itumanaho rya satelite.Umugereka wikizamini hamwe numurongo mugari wakazi wongereye ubworoherane bwa sisitemu yo kwipimisha bitewe no kwaguka kwinshi.Ariko inshuro nini yo gukora irashobora kugira ingaruka kubindi bipimo byingenzi.

Igihombo

Gutakaza kwinjiza nabyo ni ngombwa mugupima.Igihombo kirenze 1 dB cyangwa 2 dB bizahuza urwego rwo hejuru rwikimenyetso, byongere igihe cyo kuzamuka no kugwa.Mubihe byinshi byogukoresha ibidukikije, gukwirakwiza ingufu zingirakamaro rimwe na rimwe bisaba igiciro cyinshi ugereranije, bityo igihombo cyinyongera cyatangijwe na electronique ya mashini muburyo bwo guhindura ibintu bigomba kugabanywa bishoboka.

Garuka igihombo

Igihombo cyo kugaruka kigaragarira muri dB, ni igipimo cyumubyigano uhagaze (VSWR).Gutakaza igihombo biterwa no kudahuza impedance hagati yumuzunguruko.Muri microwave yumurongo wa interineti, ibiranga ibintu hamwe nubunini bwibigize urusobe bigira uruhare runini muguhitamo inzitizi ihuye cyangwa idahuye iterwa ningaruka zo gukwirakwiza.

Guhuza imikorere

Ihuzagurika ryimikorere mike yo kwinjiza irashobora kugabanya amakosa yatanzwe muburyo bwo gupima, bityo bikazamura neza ibipimo.Guhuzagurika no kwizerwa byimikorere ya switch byemeza ibipimo byukuri, kandi bigabanya ibiciro bya nyirubwite mugukwirakwiza kalibrasi no kongera igihe cyo gukora sisitemu yo gukora.

Kwigunga

Kwigunga ni urwego rwo kwiyongera kw'ibimenyetso bidafite akamaro byagaragaye ku cyambu cy'inyungu.Mugihe kinini, kwigunga biba ngombwa cyane.

VSWR

VSWR ya switch igenwa nuburinganire bwimashini no kwihanganira inganda.VSWR ikennye yerekana ko hariho ibitekerezo byimbere biterwa no kudahuza impedance, kandi ibimenyetso bya parasitike biterwa nibi bitekerezo bishobora kuganisha ku guhuza ibimenyetso (ISI).Ibi bitekerezo mubisanzwe bibaho hafi yumuhuza, kubwibyo guhuza neza guhuza no guhuza imitwaro neza nibisabwa bikomeye byo kugerageza.

Guhindura umuvuduko

Umuvuduko wo guhinduranya usobanurwa nkigihe gikenewe kugirango icyambu cyo guhinduranya (ukuboko guhinduranya) kuva kuri "kuri" ukajya "kuzimya", cyangwa kuva "kuzimya" ukajya "kuri".

Igihe gihamye

Bitewe nuko igihe cyo guhinduranya kigaragaza gusa agaciro kagera kuri 90% byagaciro gahamye / kanyuma kerekana ibimenyetso bya RF, igihe cyo guhagarara gihinduka imikorere yingenzi ya reta ihinduranya ibintu bisabwa neza kandi neza.

Imbaraga

Imbaraga zo gutwara zisobanurwa nkubushobozi bwa switch yo gutwara imbaraga, zifitanye isano rya hafi nigishushanyo nibikoresho byakoreshejwe.Iyo hari imbaraga za RF / microwave kuri port ya switch mugihe cyo guhinduranya, guhinduranya ubushyuhe bibaho.Guhindura ubukonje bibaho mugihe ibimenyetso byavanyweho mbere yo guhinduranya.Guhindura ubukonje bigera kumurongo wo hasi uhangayikishijwe no kuramba.

Kurangiza

Mubikorwa byinshi, 50 Ω umutwaro wo kurangiza ni ngombwa.Iyo switch ihujwe nigikoresho gikora, imbaraga zigaragara zinzira zitarangiye imitwaro irashobora kwangiza isoko.Imashini zikoresha amashanyarazi zirashobora kugabanywamo ibyiciro bibiri: abafite imizigo irangiye nabadafite imitwaro.Guhindura leta ikomeye birashobora kugabanywamo ubwoko bubiri: ubwoko bwimitsi nubwoko bwerekana.

Amashusho

Kumena amashusho birashobora kugaragara nkibimenyetso bya parasitike bigaragara ku cyambu cya RF iyo nta kimenyetso cya RF gihari.Ibi bimenyetso biva mumashanyarazi yakozwe na shoferi ya switch, cyane cyane kuva imbere ya voltage yimbere isabwa kugirango utware umuvuduko mwinshi wa diode ya PIN.

Ubuzima bw'umurimo

Igihe kirekire cya serivisi kizagabanya ikiguzi nimbogamizi zingengo yimari ya buri cyerekezo, bigatuma ababikora barushanwe kumasoko yumunsi.

Imiterere ya switch

Uburyo butandukanye bwuburyo bwo guhinduranya butanga ubworoherane bwo kubaka matrices igoye hamwe na sisitemu yo kwipimisha mu buryo bwikora kuri porogaramu zitandukanye.

Igabanijwemo igice kimwe muri bibiri hanze (SPDT), kimwe kuri bitatu hanze (SP3T), bibiri muri bibiri hanze (DPDT), nibindi.

Ihuza ryerekana muri iyi ngingo ：https://www.chinaaet.com/article/3000081016