Ana amfani da ƙaramar ƙaramar ƙarar amo gabaɗaya azaman ƙarami mai ƙarfi ko matsakaici-mita preamplifier don nau'ikan masu karɓar radiyo iri-iri, da haɓaka da'ira don kayan gano lantarki mai ƙarfi. Lokacin ƙarfafa sigina masu rauni, hayaniyar da abin ƙara zai iya haifarwa na iya tsoma baki tare da siginar. Saboda haka, ana fatan rage wannan amo don inganta sigina-zuwa amo na fitarwa. Lalacewar rabon siginar-zuwa amo da abin ƙarawa ya haifar yawanci ana bayyana shi ta hanyar amo na F.
Ƙaramar ƙaramar ƙararrawawani muhimmin bangare ne na da'irar mai karɓa, wanda ke aiwatarwa da kuma canza siginar da aka karɓa zuwa bayanai. LNAs ana nufin su kasance kusa da na'urar karɓa don rage asarar tsoma baki. Suna ba da gudummawar ƙaramar ƙaramar amo (bayanan mara amfani) zuwa siginar da aka karɓa tun da wani zai ƙara ƙasƙantar da siginar da aka rigaya ya raunana. Ana amfani da LNA lokacin da rabon sigina-zuwa-amo (SNR) yayi girma kuma yana buƙatar ragewa da kusan 50% yayin da ake ƙara ƙarfi. Bangaren farko na mai karɓar sigina shine LNA, yana mai da shi muhimmin sashi a cikin tsarin sadarwa.
Aikace-aikace na ƙaramar ƙaramar ƙararrawa
LNA ta ɗan sami farkon haɓaka na'urori masu sanyaya ruwa mai sanyin helium da na'urori masu auna zafin ɗaki. Tare da saurin haɓakar fasaha, an maye gurbinsa da na'urori masu tasirin tasirin tasirin microwave a cikin 'yan shekarun nan. Wannan nau'in amplifier yana da kyawawan halaye na ƙaramin girma, ƙarancin farashi, da nauyi. Musamman ta fuskar halayen mitar rediyo, tana da sifofin ƙaramar amo, faffadan mitar mitar, da riba mai yawa. An yi amfani da shi sosai a cikin C, Ku, Kv, da sauran maƙallan mitar. Kuma zafin amo na ƙaramar ƙaramar amo da aka saba amfani da ita na iya zama ƙasa da 45K.
TheƘaramar ƙararrawa (LNA)an ƙera shi ne don aikace-aikacen tashar kayan more rayuwa ta wayar hannu, kamar katunan sadarwa mara waya ta transceiver, amplifiers na hasumiya (TMA), masu haɗawa, masu maimaitawa, da kayan aikin kai-tsaye mara waya ta nesa/dijital. Ƙananan amo (NF, Noise Figure) ya saita sabon ma'auni. A halin yanzu, masana'antar kayan aikin sadarwar mara waya tana fuskantar ƙalubalen samar da mafi kyawun ingancin sigina da ɗaukar hoto a cikin cunkoson jama'a. Hankalin mai karɓa yana ɗaya daga cikin mafi mahimmancin buƙatu a cikin ƙirar tashar tashar karɓar hanyar. Zaɓin zaɓi na LNA da ya dace, musamman matakin farko na LNA na iya haɓaka haɓaka aikin masu karɓar tashar tushe, kuma ƙaramar amo kuma shine maƙasudin ƙira.
Idan kuna da wasu buƙatu naLNA, welcome to enquiry: sales@cdjx-mw.com.
Lokacin aikawa: Juni-13-2023
