Izixhumi ze-SMA ze-Feeder azikho nje enye icandelo le-RF-ngamahashe okusebenza angasetyenziswanga kwiinkqubo zokusasaza umqondiso apho ukuthembeka kungenakuxoxisana. Sibabonile besilela phantsi kwebhayisekile eshushu kwizikhululo zangaphandle. Sibajongile bebambelele-ngaphandle kokukhukuliseka okanye ilahleko-emva kwe-5,000 yemijikelo yokukhwelana kwiilebhu zovavanyo eziphathwayo. Kwaye seva iinjineli zisithi, *"Ukuba i-SMA yesondlo ihlala izinzile, ikhonkco lonke lihlala liqikeleleka."* Ayiyontetho yokuthengisa leyo. Yinyaniso eqinisekisiweyo entsimini.

Yintoni eyenza i-SMA yesondlo ibe ngaphezulu kunesiqhagamshelo nje?

I-SMA yesondlo ayichazwanga ngokudityaniswa kwayo ngentambo yodwa. Ukusebenza kwayo kuxhomekeke kwizinto ezintathu eziguquguqukayo zehlabathi lokwenyani: ukungaguquguquki kwe-impedance kuwo wonke ama-frequency bands (ngokuqhelekileyo yi-50 Ω ±0.3 Ω ukusuka kwi-DC ukuya kwi-18 GHz), ukuphindaphinda komatshini phantsi kokungcangcazela, kunye nokuqina kojongano ngokuchasene ne-oxidation kunye ne-galling. Uninzi lweentsilelo esizifumeneyo azibanganga ngenxa yoyilo lwesinxibelelanisi-kodwa ulungelelwaniso lwekhebula olungahambelaniyo, usetyenziso lwetorque engahambelaniyo, okanye ukusebenzisa imikhono ye-dielectric engalinganiswanga kwiindawo zokufuma okuphezulu.

Iziqhagamshelo zeSMA zokwenyani ze-Fieder-grade zisebenzisa imizimba yobhedu enesilivere ene-PTFE okanye izithinteli ezandisiweyo ze-PTFE-hayi i-polyethylene eqhelekileyo. Iphini eliphakathi kufuneka ligcine i-<0.02 mm runout emva kokudibana ngokuphindaphindiweyo. Ilahleko yokufaka ihlala ngaphantsi kwe-0.15 dB kwi-6 GHz xa ifakwe ngokufanelekileyo. Ilahleko yokubuyisela idlula i-30 dB ukuya kwi-12 GHz. La manani abalulekile kuba achaphazela ngokuthe ngqo izinga le-bit error rate kwi-5G fronthaul links kunye nokuzinza kwesigaba kwi-pased-array radar feeds.

Sivavanya yonke ibhetshi ngokuchasene ne-MIL-STD-348B yokusebenza kweRF kunye ne-IEC 61169-10 yokunyamezela koomatshini. Akukho ndlela zimfutshane. Hayi "ulungile ngokwaneleyo." Ngenxa yokuba kwiinkqubo ze-eriyali ezisasazwayo okanye ukuseta uvavanyo lwe-EMC, uqhagamshelo oluseludinini olunye luphumela ekungaqinisekani kwenqanaba lenkqubo.

Kutheni i-SMA eqhelekileyo ingonelanga-kwaye kufuneka ujonge ntoni endaweni yoko

Abanye banokuphikisa ukuba nayiphi na i-SMA ebhalwe "ibakala le-RF" iya kwenza. Nangona kunjalo, iziqhagamshelo ezisemgangathweni zentengiso ye-SMA zihlala zitsiba ulawulo lwe-impedance kwindawo yotshintsho, zisebenzisa ubungqingqwa beplating obungahambelaniyo, kunye nokungabikho kweziqinisekiso zezinto ezinokulandeleka. Ukuziqhelanisa, oko kuthetha ukuba phezulu kwe-VSWR spikes ngaphezulu kwe-8 GHz, unxibelelwano oluphakathi ngexesha lokwandiswa kwe-thermal, kunye nokunxitywa kwangaphambi kwexesha emva komjikelo we-1,200-hayi i-5,000+ elindelweyo kwi-mission-critical feeders.

Umahluko ubonakala kwiindawo ezintathu:

Sitshintshe ngaphezu kwe-200 yelifa lelifa elisileleyo kwi-telecom tower retrofits-kwaye ngalo lonke ixesha, unobangela wengcambu ubuyela emva kokungahambelani kwejiyometri yojongano lwentambo, hayi i-eriyali okanye iamplifier.

Ukufakela akuyonto iKhethayo-Yinxalenye yeNgcaciso

I-SMA yesondlo yenza kuphela kunye nokufakwa kwayo. I-torque ibalulekile-kodwa kunjalo nokulandelelana. Sicacisa i-7-9 in-lb yensimbi engenasici, i-5-7 in-lb yobhedu. Kodwa i-torque yodwa ayizukulungisa ukulungiswa kwentambo engalunganga. Ubunzulu bokuhluba kufuneka buhambelane ne-dielectric stop ye-dielectric. I-braid coverage kufuneka ifane-ingajijwa, ingagqithwanga. Kwaye amalungu e-solder? Zihamba kuphela kwi-conductor yangaphandle-hayi i-shield braid, kungekhona i-foil, kungekhona zombini. I-misstep enye yazisa ukungaqhubeki okubonisa amandla endaweni yokuwahambisa.

Ukuqinisekiswa kwehlabathi lokwenyani kubandakanya:

Oku akukho overkill. Yindlela yokuphepha ukufumanisa ukuba indawo yakho yeeyure ezingama-24 iyasilela kwi-3 am kuba enye i-SMA yesondlo iphuhlise ilahleko yokubuya kwe-12 dB kwi-3.5 GHz ngobusuku.

Ukuthembeka kuQala phambi kokuJika kokuQala kweWrench

I-Zibo Jixiang Machinery Co., Ltd. ayenzi izihlanganisi ze-SMA ezondlayo-kwaye ayinakuze. Ubuchwephesha bethu bulele kwizityalo zokudibanisa ikhonkrithi, iinkqubo zodaka olomileyo, kunye nezisombululo zokuxuba i-asphalt-apho imfezeko yomqondiso ibalulekile ngaphantsi kweendlela zomthwalo wesakhiwo kunye nokuhamba kwezinto eziphathekayo. Kodwa thina *siya* sidibanisa ujongano lwe-SMA yesondlo kwiikhabhathi zethu zolawulo oluzenzekelayo, amasango okubeka iliso okude, kunye neemodyuli ze-telemetry zezityalo ezinikwe amandla yi-IoT. Kwaye kwezo zicelo, sikhankanya kuphela amacandelo e-SMA e-feeder aqinisekisiweyo kwi-IPC-A-620 Class 3 kwaye avavanywe nge-IEC 60512-2-1.

Kuba ukuthembeka ayisiyonto. Yisiseko. Yiloo nto evumela ukuba isityalo sekhonkrithi sisebenze ngokuqhubekayo kwiinyanga ezili-18 ngaphandle kokuyeka unxibelelwano lwe-PLC-kwanakwiindawo ezinqabileyo ezinothuli okanye iindawo zokutshiza ityuwa elunxwemeni. Yiyo loo nto i-SjGZD060-3G yethu isityalo sodaka olomileyo sigcina ukuchaneka kwedosi ngaphakathi kwe-±0.5% kwiibhetshi ezingama-5,000, ngelixa i-RF telemetry yayo ihlala itshixiwe kumbindi we-SCADA node.

I-SMA yesondlo ingaphezulu kwentsimbi kunye neplastiki. Likhonkco lokuqala kwikhonkco lokuthembela-ukusuka kwinzwa ukuya kumncedisi, ukusuka kwisixhobo sentsimi ukuya kwideshibhodi yefu. Yikhethe njengoko ukhetha ikhonkrithi yesiseko sakho: ngokulandeleka okupheleleyo, uvavanyo olubhaliweyo, kunye nokunyamezelana okungafaniyo.