He aha ka RF mua hope?

1） ʻO ka RF front-end ka mea nui o ka ʻōnaehana kamaʻilio

Loaʻa i ka hopena o ka lekiō alapine i ka loaʻa a me ka hoʻouna ʻana i nā hōʻailona lekiō. ʻO kāna hana a me ka maikaʻi nā kumu nui e hoʻoholo ai i ka mana hōʻailona, ​​​​ka wikiwiki o ka pili pūnaewele, ka bandwidth hōʻailona, ​​ka maikaʻi o ke kamaʻilio, a me nā hōʻailona kamaʻilio ʻē aʻe.

ʻO ka maʻamau, ʻo nā ʻāpana āpau i loaʻa ma waena o ka antenna a me ka transceiver RF i hui pū ʻia ʻo ka RF front-end. Hiki i nā modula mua o ka RF i hōʻike ʻia e Wi-Fi, Bluetooth, cellular, NFC, GPS, etc. hiki ke hoʻomaopopo i ka pūnaewele, hoʻoili faila, kamaʻilio, kāleka-swiping, kūlana, a me nā hana ʻē aʻe.

2） Ka hoʻokaʻawale ʻana a me ka hoʻokaʻawale hana o RF mua-hope

Aia nā ʻano like ʻole o ka RF front-end. E like me ke ʻano, hiki ke hoʻokaʻawale ʻia lākou i nā ʻāpana discrete a me nā modula RF. A laila, hiki ke hoʻokaʻawale ʻia nā hāmeʻa discrete i nā ʻāpana hana like ʻole e like me kā lākou mau hana, a hiki ke hoʻokaʻawale ʻia nā modula RF i nā haʻahaʻa haʻahaʻa, waena, a me nā ʻano hoʻohui kiʻekiʻe e like me ke kiʻekiʻe o ka hoʻohui. hui. Eia kekahi, e like me ke ala hoʻouna hōʻailona, ​​hiki ke hoʻokaʻawale ʻia ka RF front-end i kahi ala hoʻouna a me kahi ala e loaʻa ai.

Mai ka mahele hana o nā mea ʻokoʻa, ua māhele nui ʻia i ka mana amplifier (PA),duplexer (Duplexer a me Diplexer), hoʻololi alapine radio (Hoʻololi),kānana (Kānana)a me ka leo haʻahaʻa haʻahaʻa (LNA), a me nā mea ʻē aʻe, me ka puʻupuʻu baseband e hana i kahi ʻōnaehana lekiō piha.

Hiki i ka mana amplifier (PA) ke hoʻonui i ka hōʻailona lekiō o ke kahawai hoʻouna, a hiki i ka duplexer (Duplexer a me Diplexer) ke hoʻokaʻawale i ka hoʻouna ʻana a me ka loaʻa ʻana o nā hōʻailona i hiki i nā mea hana e kaʻana like i ka antenna like ke hana maʻamau; hiki i ka lekiō alapine (Switch) ke hoʻomaopopo i ka hōʻailona hōʻailona lekiō a me ka Transmitting hoʻololi, hoʻololi i waena o nā alapine like ʻole; Hiki i nā kānana ke hoʻopaʻa i nā hōʻailona ma nā kaha alapine kikoʻī a kānana i nā hōʻailona ma waho o nā kaha alapine kikoʻī; Hiki i nā mea hoʻonui haʻahaʻa haʻahaʻa (LNA) ke hoʻonui i nā hōʻailona liʻiliʻi ma ke ala e loaʻa ai.

E hoʻokaʻawale i nā modula hoʻohui haʻahaʻa, waena, a me ke kiʻekiʻe e like me ka pae hoʻohui o nā module frequency radio frequency. Ma waena o lākou, nā modula me ka hoʻohui haʻahaʻa e komo pū me ASM, FEM, a me nā mea ʻē aʻe, a me nā modula me ka hoʻohui waena e like me Div FEM, FEMID, PAiD, SMMB PA, MMMB PA, RX Module, a me TX Module, etc., modules me kahi kiʻekiʻe o hoʻohui pū me PAMiD a me LNA Div FEM.

Hiki ke hoʻokaʻawale ʻia ke ala hoʻouna hōʻailona i kahi ala hoʻouna a me kahi ala e loaʻa ai. ʻO ke ala hoʻouna ka mea nui e pili ana i nā mana amplifiers a me nā kānana, a ʻo ke ala e loaʻa ai ka nui o nā hoʻololi lekiō, nā mea hoʻonui haʻahaʻa haʻahaʻa, a me nā kānana.

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