RF a me ka hawewe PCB ua puni ia no kekahi mau makahiki a hoʻohana pinepine ʻia i ka ʻoihana uila. Kaulana nui lākou a hoʻolālā ʻia e hana ma nā hōʻailona ma ka MHZ i ka gigahertz frequency range. Kūpono kēia mau PCBS ke hiki mai i ka pili pūnaewele a me nā polokalamu kamaʻilio. Nui nā kumu no ke kumu e paipai ai nā mea hana PCB iā RF a me nā papa uila no nā noi pūnaewele. Makemake ʻoe e ʻike he aha ia? Kūkākūkā kēia ʻatikala i ka pilikia like.

Overview o RF a me ka hawewe PCB

ʻO ka maʻamau, hoʻolālā ʻia nā papa RF a me nā microwave no nā noi ma waenakonu – i ke alapine ʻoi loa a ʻoi paha ma mua o 100 MHz. He paʻakikī kēia mau papa e hoʻolālā no ka pilikia o ka hoʻokele mai ka hōʻailona hōʻailona i ka mālama ʻana i nā ʻano hoʻoili pākana. Eia naʻe, ʻaʻole e hoʻēmi kēia mau pilikia i kāna mea nui. ʻO ka hoʻohana ʻana o nā mea me nā waiwai e like me ka hoʻomau o nā dielectric haʻahaʻa, ke koena kiʻekiʻe o ka hoʻonui ʻana o ka wela (CTE) a me ka lilo haʻahaʻa Angle tangent i kōkua i ka maʻalahi ʻana i ke kaʻina hana. Hoʻohana pinepine ʻia nā mea PCB e kūkulu RF a me ka microwave PCBS he hydrocarbons i piha i ka pālolo, PTFE me nā olonā i ulana ʻia a i ʻole microglass, FEP, LCP, Rogers RO laminates, hana kiʻekiʻe FR-4, etc.

ʻO nā maikaʻi ʻokoʻa o RF a me PCBS hawewe

Hāʻawi ʻo Rf a me microwave PCBS i nā pono maikaʻi he nui. No laila e nānā iā lākou āpau.

ʻO nā mea me ka CTE haʻahaʻa e kōkua i nā hanana PCB e noho paʻa i nā mahana wela. Eia kekahi, hana maʻalahi kēia mau mea i nā multilayer e hoʻopili.

Ma muli o ka hoʻohana ʻia o nā mea CTE haʻahaʻa, hiki i nā ʻenekini PCB ke hoʻopili maʻalahi i nā papa papa he nui i nā hanana paʻakikī.

Hiki ke hoʻemi ʻia ke kumukūʻai hui o RF a me PCBS microwave ma o ka hanana stack multi-layer. Hāʻawi pū kēia ʻano i ka hana PCB optimum.

ʻO Er paʻa a me ka tangent loss loss kōkua i ka lawe wikiwiki o nā hōʻailona pinepine ma o kēia PCBS. Eia kekahi, haʻahaʻa ka impedance i kēia lawe ʻana.

Hiki i nā ʻenekini PCB ke hoʻonohonoho pono i nā ʻāpana pitch maikaʻi ma ka papa, i kōkua e hoʻokō i nā hoʻolālā paʻakikī.

No laila, hana kēia mau mea maikaʻi i RF a me microwave PCBS kūpono no nā ʻano noi like ʻole me ka hoʻoili uila ʻole a me nā ʻōnaehana pūnaewele kamepiula ʻē aʻe.