I-Q-band ne-EHF-band: Isicelo namathemba obuchwepheshe bemvamisa ephezulu

Ibhendi ye-Q kanye ne-EHF (Imvamisa Ephakeme Kakhulu) amabhande efrikhwensi abalulekile ku-spectrum kagesi, anezici ezihlukile kanye nezinhlelo zokusebenza ezibanzi.

I-Q-band:

I-Q-band ngokuvamile ibhekisela ebangeni lefrikhwensi ephakathi kuka-33 no-50 GHz, etholakala ebangeni le-EHF.

Izici zayo eziyinhloko zihlanganisa:

Imvamisa ephezulu: ubude begagasi obufushane, cishe 6 kuya ku-9 mm.

Umkhawulokudonsa ophezulu: ulungele ukudluliswa kwedatha ngesivinini esikhulu.

Izindawo ezisetshenziswa kakhulu ze-Q-band yilezi:

Ukuxhumana ngesathelayithi: kusetshenziselwa i-uplink kanye ne-downlink yezinhlelo ze-high-throughput satellite (HTS) ukuhlinzeka ngamasevisi e-inthanethi ye-broadband.

Ukuxhumana nge-microwave ephansi: kusetshenziselwa ukudlulisa idatha ebangeni elifushane, esezingeni eliphezulu.

I-Radio astronomy: isetshenziselwa ukubuka imithombo yerediyo yamaza aphezulu endaweni yonke.

Irada yezimoto: irada yebanga elifushane esetshenziswa kumasistimu okusiza abashayeli (ADAS).

Ibhendi ye-EHF:

Ibhendi ye-EHF ibhekisela kububanzi befrikhwensi phakathi kuka-30 no-300 GHz futhi ubude begagasi bungu-1 ukuya ku-10 mm, ngakho-ke ibizwa nangokuthi i-millimeter wave band.

Izici zayo eziyinhloko zihlanganisa:

Imvamisa ephezulu kakhulu: ekwazi ukuhlinzeka ngamanani aphezulu kakhulu wokudluliswa kwedatha.

Ugongolo oluncane: usayizi we-antenna omncane kanye nokuqondisa okuqinile.

Izindawo eziyinhloko zokufaka izicelo zebhendi ye-EHF yilezi:

Ukuxhumana kwezempi: kusetshenziselwa amasistimu okuxhumana anezidingo eziphezulu zokugcinwa kuyimfihlo, njenge-Milstar yezempi yase-US kanye nezinhlelo ze-Advanced Extremely High Frequency (AEHF).

Ukuxhumana ngesathelayithi: ukuhlinzeka ngezinsizakalo ze-broadband nokusekela ukudluliswa kwedatha ngesivinini esikhulu.

Amasistimu e-radar: asetshenziselwa ama-radar wokucabanga anesinqumo esiphezulu nama-radar okulawula umlilo.

Ucwaningo lwesayensi: lusetshenziselwa ukutholwa komkhathi kanye nokubhekwa kwezinkanyezi zomsakazo.

Izinselelo nentuthuko:

Nakuba amabhendi e-Q-band kanye ne-EHF enamathuba abanzi okusebenza, asabhekene nezinselelo ezithile ekusebenziseni okungokoqobo:

Ukuncipha komkhathi: amasignali emvamisa ephezulu angenwa kalula yisimo sezulu esifana nokuncipha kwemvula ngesikhathi sokusakazeka, okuholela ekuncipheni kwesignali.

Ubunkimbinkimbi bobuchwepheshe: amadivaysi anemvamisa ephezulu anokwakheka okuphezulu nezidingo zokukhiqiza kanye nezindleko eziphezulu.

Ukuze kuhlangatshezwane nalezi zinselele, abacwaningi bathuthukisa ukuguquguquka okuthuthukisiwe kanye nobuchwepheshe bokubhala amakhodi, kanye nezikimu ezihlakaniphile zokuhlukahluka kwesango ukuze kuthuthukiswe ukwethembeka kwesistimu namandla okulwa nokuphazamiseka.

Isiphetho:

I-Q-band ne-EHF-band idlala indima ebalulekile kwezokuxhumana zesimanje, i-radar nocwaningo lwesayensi.

Ngokuthuthuka kobuchwepheshe, ukusetshenziswa kwalawa mabhendi amafrikhwensi kuzokwandiswa, kunikeze amathuba amasha okuthuthukiswa kwemikhakha eyahlukene.