Nkhani Zamakampani

Dongosolo la Mars RF lolimbana ndi ma drone limagwiritsa ntchito kapangidwe kake, komwe kamaphatikiza kuzindikira, kuzindikira, kutsatira, ndi njira zotsutsana ndi ma radio frequency kuti lipereke chitetezo chachangu komanso chogwira mtima cha malo ofunikira. Dongosololi lili ndi mphamvu yogwira ntchito nthawi zonse, liwiro loyankha mwachangu kwambiri, komanso kukana mwamphamvu kuukira kwa saturation, polimbana bwino ndi ziwopsezo zosiyanasiyana za ma drone, kuphatikiza ma drone amodzi ndi gulu lankhondo.

Machubu oyenda a mafunde (TWTs), omwe amayimira ukadaulo wamagetsi a vacuum, kale anali odziwika bwino pama frequency band ndi milingo yamphamvu. Komabe, ma amplifiers amphamvu a boma (SSPAs), omwe ali ndi kupita patsogolo kwa zinthu za semiconductor, makamaka kukhwima kwa ukadaulo wa gallium nitride (GaN), akukonzanso mawonekedwe amsika.

Ma amplifiers amphamvu a boma ndi maziko a makina amakono opanda zingwe, komabe mphamvu zawo zimapitirira patali kuposa 'kukulitsa chizindikiro'. Monga wopanga waluso wokhala ndi zaka makumi awiri zaukadaulo mu gawo la RF, Mars RF imayerekeza ma amplifiers amphamvu a boma (SSPA) ndi 'nyumba yamphamvu' ya makina onse a RF. Kudzera mu ntchito zisanu zofunika, imayika mphamvu yofunikira mu radar, kulumikizana, ndi makina olimbana ndi magetsi.

Ma Narrowband Amplifiers ndi "osewera akatswiri" omwe amafunafuna luso pa nthawi inayake. Koma ma Wideband power amplifiers ndi "osinthasintha" kwambiri. Kusiyana kwakukulu pakati pa mitundu iwiri ya ma power amplifiers kumachokera ku zolinga zawo zosiyanasiyana, zomwe zimapangitsa kuti njira zawo zaukadaulo ndi magwiridwe antchito awo azisiyana. Mwachidule, narrowband amplifier imafuna "single-point excellence," pomwe ma wideband power amplifiers amapeza "kugwirizana kwakukulu."

Kukulitsa chizindikiro cha pulse n'kosiyana kwambiri ndi kukulitsa chizindikiro cha mafunde osalekeza. Vuto lalikulu lili pa kuthekera kwa amplifier kusintha mosavuta kuchoka pa "kuzimitsa" kupita ku "mphamvu yonse" ndikubwerera ku "kuzimitsa" mkati mwa nanoseconds kapena ngakhale picoseconds, kusunga kukhulupirika kwathunthu ku mawonekedwe a pulse panthawi yonseyi. Kusokoneza kulikonse kwa mphindi, monga kupendekera pamwamba, kupitilira, kapena kulira, kudzasintha mwachindunji kukhala kusamveka bwino kwa target range, kuchepa kwa resolution, kapena zolakwika za bit mu maulalo olumikizirana mkati mwa radar system. Mars RF, pogwiritsa ntchito ukadaulo wake waukulu m'munda uno, ikufotokoza momwe mungakwaniritsire kukulitsa chizindikiro cha pulse popanda kupotoza ndipo imayambitsa njira zamakono.

Mu machitidwe amakono a wailesi (RF) monga kulankhulana opanda zingwe, kuzindikira ma radar, ndi njira zotsutsana ndi zamagetsi, ma amplifiers, makamaka ma amplifiers amphamvu (PAs), amachita gawo lofunika kwambiri komanso lofunika kwambiri. Monga "mtima" wa makinawa, amapereka mphamvu yofunikira pa unyolo wonse wa chizindikiro, zomwe zimatsimikizira mwachindunji kuchuluka kwa kulumikizana, kulondola kozindikira, komanso kudalirika kwa makinawa.

Mu nthawi yamakono yolumikizana padziko lonse lapansi, kulumikizana kwa satellite kumachita gawo lofunika kwambiri pakudutsa malire a malo. Pakati pa gawo lovutali la nthaka, High Power Amplifiers (HPA) imagwira ntchito yofunika kwambiri - ikugwira ntchito ngati "zingwe zolimba za mawu" za dongosolo lonse lolumikizirana la satellite, kuonetsetsa kuti zizindikiro zapansi zimatha kufikira ma satellites omwe ali pamtunda wa makilomita masauzande ambiri momveka bwino komanso mokhazikika.

Pankhani ya ma amplifiers amphamvu a ma radio frequency, kusankha ukadaulo wazinthu kumakhudza mwachindunji malire a magwiridwe antchito a dongosololi. Pakadali pano, GaAs (Gallium Arsenide) ndi GaN (Gallium Nitride), monga ukadaulo waukulu wa semiconductor, amachita ntchito zosasinthika m'makina amakono opanda zingwe chifukwa cha zabwino zawo zapadera zogwirira ntchito.

M'magawo omwe akukula mofulumira masiku ano okhudza kulankhulana opanda zingwe, ukadaulo wa ndege, ndi chitetezo, kusintha kwa ukadaulo komwe kutsogoleredwa ndi sayansi ya zinthu kukuchitika mwakachetechete. Ma amplifiers a Gallium nitride (GaN), monga opanga zatsopano pankhani ya mphamvu ya ma radio frequency (RF), akukonzanso miyezo yaukadaulo ya ma amplifiers amphamvu ndi magwiridwe antchito awo apamwamba.

M'magawo aukadaulo apamwamba monga kulumikizana kwa 5G, kuzindikira radar, ndi nkhondo zamagetsi, ma amplifiers amphamvu a RF amachita gawo lofunika kwambiri. Monga "mtima wamphamvu" wa makina opanda zingwe, mfundo yawo yogwirira ntchito imakhudza mwachindunji malire a magwiridwe antchito a makina onse. Lero, tifufuza mfundo zazikulu zaukadaulo za ma amplifiers amphamvu a RF, ndikuwulula momwe amasinthira ma signali ofooka kukhala mphamvu yamphamvu ya RF.