Izindaba Zemboni

Imojuli ye-transceiver iyiyunithi ehlanganisiwe yomthumeli kanye nomemukeli, umsebenzi wayo oyinhloko ukufeza ukuguqulwa okungenamthungo kanye nokudluliswa kwemifudlana yedatha eqondiswayo.

Imojuli ye-T/R iyiyunithi eyisisekelo nebaluleke kakhulu ngaphakathi kohlelo lwe-radar olunezigaba ezisebenzayo, olunesibopho sokwenza imisebenzi yokudlulisa isignali kanye nokwamukela yento ngayinye ye-antenna.

Uhlelo lwe-Mars RF olulwa nama-drone lusebenzisa umklamo ohlanganisiwe, oluhlanganisa ngokugcwele izindlela zokuthola, ukuhlonza, ukulandelela, kanye nezindlela zokumelana nemvamisa yomsakazo ukuze lunikeze ukuvikelwa okusheshayo nokuphumelelayo kwezindawo zokugcina zezinhloso ezibalulekile. Uhlelo lunamandla okusebenza kuzo zonke izimo zezulu, isivinini esikhulu sokuphendula, kanye nokumelana okunamandla nokuhlaselwa kokugcwala, lulwa ngempumelelo nezinsongo ezahlukahlukene zama-drone, okuhlanganisa ama-drone angawodwa kanye nezixuku.

Amashubhu amagagasi okuhamba (ama-TWT), njengabamele ubuchwepheshe be-vacuum electronics, ake aba yinhloko yamabhendi athile emvamisa kanye namazinga amandla. Kodwa-ke, ama-amplifiers amandla e-solid state (ama-SSPA), anentuthuko ezintweni ze-semiconductor, ikakhulukazi ukuvuthwa kobuchwepheshe be-gallium nitride (GaN), aguqula isimo semakethe.

Ama-amplifiers anamandla e-Solid state akha umongo wezinhlelo zanamuhla ezingenantambo, kodwa amakhono awo adlulela ngale nje 'kokukhulisa isignali'. Njengomkhiqizi ochwepheshe onolwazi lweminyaka engamashumi amabili emkhakheni we-RF, i-Mars RF ifanisa ama-amplifiers anamandla e-solid state (SSPA) 'nendlu enamandla' yohlelo lonke lwe-RF. Ngemisebenzi emihlanu ebalulekile, ifaka amandla abalulekile ezinhlelweni ze-radar, zokuxhumana, kanye nezindlela zokulinganisa ze-elekthronikhi.

Ama-Narrowband Amplifiers “angabadlali abangochwepheshe” abaphishekela ubuhle ngesivinini esithile. Ngakolunye uhlangothi, ama-wideband power amplifier “asebenza kuzo zonke izinhlobo.” Umehluko oyinhloko phakathi kwezinhlobo ezimbili zama-power amplifier uvela emigomweni yazo yokuklama ehlukene, okuholela ngqo ezindleleni zazo zobuchwepheshe ezihlukene kanye nezici zokusebenza. Kalula nje, i-narrowband amplifier iphishekela “ubuhle bephuzu elilodwa,” kuyilapho ama-wideband power amplifier efinyelela “ukuhambisana okubanzi.”

Ukukhulisa isignali ye-pulse kuhluke kakhulu ekukhuliseni isignali yegagasi eliqhubekayo. Inselele eyinhloko ilele ekhonweni le-amplifier lokushintsha kalula kusuka ku-"off" kuya ku-"full power on" bese ubuyela ku-"off" ngaphakathi kwama-nanosecond noma ngisho nama-picosecond, ukulondoloza ukwethembeka okuphelele esimweni se-pulse kulo lonke le nqubo. Noma yikuphi ukuphambuka kwemizuzu, njengokuthambekela okuphezulu, ukudubula ngokweqile, noma ukukhala, kuzohumusha ngqo ekungacacini kwebanga eliqondiwe, ukuncipha kwesisombululo, noma amaphutha e-bit ezixhumanisini zokuxhumana ngaphakathi kohlelo lwe-radar. I-Mars RF, isebenzisa ubuchwepheshe bayo obujulile kulo mkhakha, ichaza indlela yokufeza ukukhuliswa kwesignali ye-pulse engena-distortion futhi yethula izixazululo ezisezingeni eliphezulu.

Ezinhlelweni zesimanje zemvamisa yomsakazo (RF) ezifana nokuxhumana okungenantambo, ukutholwa kwe-radar, kanye nezindlela zokumelana ze-elekthronikhi, ama-amplifier, ikakhulukazi ama-power amplifiers (ama-PA), adlala indima ebalulekile nebalulekile. Njengenhliziyo "yesistimu", anikeza amandla abalulekile kulo lonke uchungechunge lwesignali, enquma ngqo ububanzi bokuxhumana, ukunemba kokutholwa, kanye nokuthembeka kohlelo.

Enkathini yanamuhla yedijithali exhumene emhlabeni wonke, ukuxhumana ngesathelayithi kudlala indima ebalulekile ekudluleni imingcele yezwe. Enhliziyweni yalesi sigaba somhlabathi esiyinkimbinkimbi, ama-High Power Amplifiers (HPA) adlala indima engenakuphikwa futhi ebalulekile - esebenza "njengezintambo zezwi eziqinile" zesistimu yonke yokuxhumana ngesathelayithi, eqinisekisa ukuthi izimpawu zomhlaba zingafinyelela amasathelayithi amashumi ezinkulungwane zamakhilomitha ukusuka lapho ngokucacile nangokuzinzile.

Emkhakheni wama-amplifier wamandla e-radio frequency, ukukhetha ubuchwepheshe bezinto ezibonakalayo kuthinta ngqo imikhawulo yokusebenza kwesistimu. Njengamanje, i-GaAs (Gallium Arsenide) kanye ne-GaN (Gallium Nitride), njengobuchwepheshe obubili obujwayelekile be-semiconductor, zidlala indima engenakuphikwa ezinhlelweni zanamuhla ezingenantambo ngenxa yezinzuzo zazo zokusebenza ezihlukile.