Karolo ea RF front-end litsamaisong tsa puisano

Litsamaisong tsa puisano tsa sejoale-joale, karolo e ka pele ea Radio Frequency (RF) e bapala karolo ea bohlokoa ho nolofatseng puisano e sebetsang ea waelese. E behiloe pakeng tsa antenna le baseband ea dijithale, karolo e ka pele ea RF e ikarabella bakeng sa ho sebetsana le matšoao a kenang le a tsoang, e leng se etsang hore e be karolo ea bohlokoa lisebelisoa tse tlohang ho li-smartphone ho ea ho li-satellite.

RF Front-End ke eng?
Karolo e ka pele ea RF e na le likarolo tse fapaneng tse sebetsanang le kamohelo le phetiso ea matšoao. Lintho tsa bohlokoa li kenyelletsa li-amplifier tsa matla (PA), li-amplifier tsa lerata le tlase (LNA), li-filter le li-switch. Likarolo tsena li sebetsa 'moho ho netefatsa hore matšoao a fetisoa ka matla le ho hlaka ho lakatsehang, ha ka nako e ts'oanang ho fokotsa tšitiso le lerata.

Ka tlwaelo, dikarolo tsohle tse pakeng tsa antenna le transceiver ya RF di bitswa RF front-end, ho netefatsa phetiso e sebetsang hantle ya letshwao la waelese.

2) Tlhophiso le Mosebetsi oa RF Front-End
Karolo e ka pele ea RF e ka aroloa ka mefuta e 'meli e meholo ho latela sebopeho sa eona: likarolo tse arohaneng le li-module tsa RF. Likarolo tse arohaneng li aroloa hape ho latela mosebetsi oa tsona, ha li-module tsa RF li aroloa ka maemo a tlase, a mahareng le a holimo a kopanyo. Ho phaella moo, ho latela tsela ea phetiso ea lets'oao, karolo e ka pele ea RF e aroloa ka litsela tsa phetiso le kamohelo.

Ho tloha karohanong e sebetsang ea lisebelisoa tse arohaneng, likarolo tsa bohlokoa tsa karolo e ka pele ea RF li kenyelelitsoe ho amplifier ea matla (PA), duplexer (Duplexer le Diplexer), switch ea maqhubu a seea-le-moea (Switch), filter (Filter) le amplifier ea lerata le tlase (LNA), jj. Likarolo tsena, hammoho le chip ea baseband, li theha sistimi e felletseng ea RF.

Li-Amplifiers tsa Matla (PA): Matlafatsa lets'oao le fetisetsoang.
Di-duplexer: Di arola matshwao a phetiso le a kamohelo, e leng se dumellang disebediswa ho arolelana antenna e le nngwe ka katleho.
Phetoho ea maqhubu a radio (Phetoho): E nolofalletsa ho fetola pakeng tsa phetiso le kamohelo kapa pakeng tsa lihlopha tse fapaneng tsa maqhubu.
Li-filter: Sefa maqhubu a sa batleheng 'me u boloke lets'oao le lakatsehang.
Li-Amplifiers tsa Lerata le Tlase (LNA): Holisa matšoao a fokolang tseleng e amohelang.
Di-module tsa RF, ho latela boemo ba tsona ba kopanyo, di tloha ho di-module tse nang le kopanyo e tlase (jwalo ka ASM, FEM) ho isa ho di-module tse nang le kopanyo e mahareng (jwalo ka Div FEM, FEMID, PAiD), le di-module tse nang le kopanyo e phahameng (jwalo ka PAMiD, LNA Div FEM). Mofuta o mong le o mong wa mojule o etseditswe ho fihlela ditlhoko tse fapaneng tsa tshebediso.

Bohlokoa Litsamaisong tsa Puisano
Karolo e ka pele ea RF ke sesebelisoa sa bohlokoa sa puisano e sebetsang hantle ea waelese. E khetholla ts'ebetso ea sistimi ka kakaretso mabapi le matla a lets'oao, boleng le bandwidth. Marangrang a selefounu, mohlala, karolo e ka pele ea RF e netefatsa puisano e hlakileng pakeng tsa sesebelisoa le seteishene sa motheo, e susumetsa ka kotloloho boleng ba mohala, lebelo la data le sebaka sa ho koahela.

Litharollo tsa RF Front-End tse Ikhethileng
Apex e ikgethile ka ho rala dikarolo tsa RF tse ikgethileng, e fana ka ditharollo tse etseditsweng ho fihlela ditlhoko tse ikgethang tsa ditsamaiso tse fapaneng tsa puisano. Mefuta ya rona ya dihlahiswa tsa RF tse ka pele e netefatsa tshebetso e ntlafetseng bakeng sa ditshebediso tsa dikgokahano tsa mehala, tsa difofane, tsa tshireletso le tse ding.

Qetello
Karolo e ka pele ea RF ke karolo ea bohlokoa ea sistimi efe kapa efe ea puisano, e netefatsang phetiso le kamohelo e sebetsang hantle ea matšoao ha ka nako e ts'oanang e fokotsa tšitiso. Ka tsoelo-pele ea theknoloji le litlhoko tse ntseng li hola tsa ts'ebetso e phahameng, bohlokoa ba litharollo tsa RF tse ka pele tsa boleng bo holimo bo ntse bo eketseha, e leng se etsang hore e be karolo ea bohlokoa marang-rang a sejoale-joale a se nang mohala.

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