Kedu ihe bụ RF / Microwave Filter?

Akọwapụtara ugboro redio (RF) na ihe nzacha microwave dị ka ụdị nzacha eletrọnịkị, nke emebere ka ọ rụọ ọrụ na mgbama n'ogo megahertz ruo gigahertz (okirikiri ruo oke oke). Ugboro ugboro nke nzacha a bụ oke nke ọtụtụ redio na-agbasa ozi, telivishọn, nkwurịta okwu ikuku (ekwentị, Wi-Fi, wdg), yabụ ọtụtụ ngwaọrụ RF na ngwa ndakwa nri ga-agụnye ụdị nzacha na mgbama ebufe ma ọ bụ natara. A na-ejikarị ihe nzacha dị otú ahụ dị ka ngọngọ ụlọ maka duplexers na diplexers iji jikọta ma ọ bụ kewaa ọtụtụ eriri ugboro.

Ọrụ:
1. Rf nzacha nwere ike ibelata nnyonye anya bandwit ugboro ugboro ma melite arụmọrụ nke akụrụngwa jikọtara ọnụ.
2. Ihe nzacha RF na-enye ohere naanị ugboro na ọwa a na-ebufe ma ọ bụ nata ka ọ gafere ma belata ndabichi mgbaama na mpụga ọwa.

Dabere na ọrụ ya, dị ka ọnụọgụ nke mgbaàmà na-arụ ọrụ iji wepụta ihe nzacha RF, a na-ekewakarị ha na ngalaba anọ, ya bụ, nzacha obere ngafe (LPF), nzacha elu ngafe (HPF), band pass filter. BPF) na ihe nkwụsị band (BSF).

1. Nzacha dị ala: Ọ na-ezo aka na nzacha nke akara ngosi dị ala nwere ike ịgafe mana mgbama ugboro dị elu enweghị ike ịgafe;
2. Ihe nzacha dị elu: Ọ bụ ihe dị iche, ya bụ, akara ngosi dị elu nwere ike ịgafe na obere akara ngosi na-enweghị ike ịgafe;
3. Band-pass filter: Ọ na-ezo aka ugboro na a ụfọdụ ugboro nso nke mgbaàmà nwere ike ịgafe, RF nzacha na n'èzí ugboro nso nke mgbaàmà enweghị ike ịgafe;
4. Band-stop filter: Arụmọrụ nke nzacha band-stop bụ ihe dị iche, ya bụ, a na-egbochi akara ngosi na mpaghara band, ma a na-ahapụ akara n'èzí ugboro ugboro a ka ọ gafere;

Enwere ike kewaa ihe nzacha RF n'ime nzacha SAW, nzacha BAW, nzacha LC, nzacha oghere, nzacha seramiiki dabere na nhazi ma ọ bụ ihe nke ha.

Jingxin, dị ka ọkachamaraemeputa nke RF pasive components, nwere ike ịnye ihe nzacha RF dị n'elu maka ntụnye aka, nke na-emepe emepe ihe karịrị afọ 10 iji chepụta ma mepụta ihe nzacha RF maka ngwa dị iche iche, dị ka ngwọta DAS, usoro BAD, nkwurịta okwu agha, ma nweta otuto dị elu maka mmezu sitere na ndị ahịa. Jingxin nwere ike ime ihe nzacha imewe omenala dịka nkọwa ya si dị, a na-anabatakwa ajụjụ ndị ọzọ.