Tasirin tsaka-tsaki (PIM) a cikin tashoshin tushe

An san na'urori masu aiki don samun tasirin da ba na layi ba akan tsarin. An ƙirƙiri dabaru iri-iri don haɓaka aikin irin waɗannan na'urori a lokacin ƙirar ƙira da aiki. Yana da sauƙi a manta cewa na'urar da ba ta dace ba kuma zata iya gabatar da tasirin da ba na kan layi ba wanda, yayin da wasu lokuta ƙanƙanta, na iya yin tasiri sosai akan aikin tsarin idan ba a gyara ba.

PIM yana nufin "matsala mara kyau". Yana wakiltar samfurin tsaka-tsaki da aka samar lokacin da ake watsa sigina biyu ko fiye ta hanyar na'urar da ba ta dace ba tare da halaye marasa kan layi. Haɗin gwiwar sassan da ke da alaƙa gabaɗaya yana haifar da sakamako mara kyau, waɗanda aka fi bayyana su musamman a mahaɗin ƙarfe daban-daban guda biyu. Misalai sun haɗa da saƙon haɗin kebul, mahaɗa mara tsabta, mara kyau na duplexers, ko eriya masu tsufa.

Intermodulation mai wucewa babbar matsala ce a cikin masana'antar sadarwar salula kuma yana da matukar wahala a magance shi. A cikin tsarin sadarwar salula, PIM na iya haifar da tsangwama, rage hankalin mai karɓa, ko ma toshe sadarwa gaba ɗaya. Wannan tsangwama na iya shafar tantanin halitta da ke samar da shi, da kuma sauran masu karɓa a kusa. Misali, a cikin LTE band 2, kewayon saukarwa shine 1930 MHz zuwa 1990 MHz kuma kewayon haɓaka shine 1850 MHz zuwa 1910 MHz. Idan guda biyu masu jigilar kaya a 1940 MHz da 1980 MHz, bi da bi, suna watsa sigina daga tsarin tashar tushe tare da PIM, haɗin gwiwar su yana samar da wani sashi a 1900 MHz wanda ya fada cikin rukunin karɓa, wanda ke shafar mai karɓa. Bugu da kari, intermodulation a 2020 MHz na iya shafar wasu tsarin.

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Yayin da bakan ya zama cunkoson jama'a kuma tsarin raba eriya ya zama ruwan dare gama gari, yuwuwar haɗuwar dillalai daban-daban da ke samar da PIM yana ƙaruwa. Hanyoyi na al'ada don guje wa PIM tare da tsara mita suna ƙara zama marasa yiwuwa. Baya ga ƙalubalen da ke sama, ɗaukar sabbin tsare-tsare na dijital kamar CDMA/OFDM yana nufin cewa ƙarfin kololuwar tsarin sadarwa kuma yana ƙaruwa, yana mai da matsalar PIM “mafi muni”.

PIM babbar matsala ce kuma mai tsanani ga masu samar da sabis da masu siyar da kayan aiki. Ganowa da warware wannan matsala gwargwadon yiwuwa yana ƙara amincin tsarin kuma yana rage farashin aiki.

Kamar yadda mai zanenRF Duplexers, Jingxin na iya taimaka muku game da batun RF duplexers, da keɓance abubuwan da suka dace bisa ga maganin ku. Ana iya tuntuɓar ƙarin dalla-dalla tare da mu.


Lokacin aikawa: Janairu-06-2022