Kugumiswa kweDorp-In RF Microwave

Zvimiro:

Kakawanda-kakawanda
Kuvimbika Kwakanyanya uye Kugadzikana

Mashandisirwo:

Wireless
Kugadzira zviridzwa
Radar

BATA IZVOZVI

Kupera Kwemagetsi (kunozivikanwawo seSurface-mount termination resistor) chinhu chinoisa tekinoroji yepamusoro (SMT) chakagadzirirwa macircuits edhijitari ane kumhanya kukuru uye mafrequency eredhiyo (RF). Chinangwa chayo chikuru ndechekudzvinyirira kuratidzwa kwechiratidzo uye kuona kuti chiratidzo chakasimba (SI). Panzvimbo pekubatanidzwa newaya, "inoiswa" zvakananga kana "inoiswa" munzvimbo dzakatarwa pamitsetse yekutumira yePCB (senge mitsetse ye microstrip), ichishanda sechinodzivirira magumo chakafanana. Chinhu chakakosha mukugadzirisa matambudziko emhando yechiratidzo chekukurumidza uye chinoshandiswa zvakanyanya muzvigadzirwa zvakasiyana-siyana zvakaiswa, kubva kumaseva emakomputa kusvika kuzvivakwa zvekutaurirana.

Hunhu:

1. Kushanda kwakanyanya kwepamusoro-soro uye kuenderana kwakarurama kwe impedance
Ultra-Low parasitic inductance (ESL): Ichishandisa zvivakwa zvitsva zve vertical uye matekinoroji epamusoro (senge tekinoroji ye thin-film), parasitic inductance inoderedzwa (kazhinji ma resistance values akanyatsojeka: Inopa ma resistance values akarurama uye akasimba), ichiva nechokwadi chekuti termination impedance inonyatsoenderana nechaicho chehunhu hwe transmission line (semuenzaniso, 50Ω, 75Ω, 100Ω), kuwedzera simba resignal uye kudzivirira kufungisisa.
Mhinduro yakanaka kwazvo yemafrequency: Inochengetedza hunhu hwakagadzikana hwekudzivirira pamusoro pehuwandu hwakakura hwemafrequency, ichipfuura zvakanyanya ma axial kana radial lead resistors echinyakare.
2. Dhizaini yezvivakwa yakazvarirwa kubatanidzwa kwePCB
Maumbirwo akasiyana ekumira: Kuyerera kwemagetsi kwakamira panzvimbo yebhodhi rePCB. Maelectrode maviri aya ari pamusoro nepazasi pechikamu, akabatana zvakananga nesimbi yetambo yekutumira magetsi nepasi, zvichigadzira nzira pfupi yemagetsi uye zvichideredza zvakanyanya kutenderera kwemhepo kunokonzerwa nemaresistors ekare.
Tekinoroji yekuisa pamusoro pechinhu (SMT): Inoenderana nemaitiro ekugadzira otomatiki, yakakodzera kugadzirwa kwakakura, ichivandudza kushanda zvakanaka uye kugara kwenguva refu.
Yakabatana uye inochengetedza nzvimbo: Saizi diki dzemapakeji (semuenzaniso, 0402, 0603, 0805) dzinochengetedza nzvimbo yakakosha yePCB, zvichiita kuti ive yakakodzera magadzirirwo emabhodhi ane vanhu vakawanda.
3. Kubata nesimba uye kuvimbika
Kushanda kwemagetsi: Pasinei nehukuru hwayo hudiki, dhizaini yacho inokonzeresa kudzingwa kwemagetsi, zvichiita kuti ikwanise kubata kupisa kunobva panguva yekumira kwechiratidzo nekukurumidza. Kune mareti akawanda esimba anowanikwa (semuenzaniso, 1/16W, 1/10W, 1/8W, 1/4W).
Kuvimbika kwakanyanya uye kugadzikana: Inoshandisa masisitimu ezvinhu akasimba uye zvivakwa zvakasimba, ichipa simba rakanaka kwazvo remakanika, inodzivirira kupisa, uye yakavimbika kwenguva refu, zvichiita kuti ive yakakodzera kushandiswa mumaindasitiri.

Mashandisirwo:

1. Kumiswa kwemabhazi edhijitari anomhanya zvakanyanya
Mumabhazi anomhanya zvakanyanya (semuenzaniso, DDR4, DDR5 SDRAM) uye mabhazi akasiyana-siyana, uko mwero wekutumira masaini wakakwira zvakanyanya, ma "Drop-In Termination resistors" anoiswa pamagumo emutsetse wekutumira (end termination) kana panobva (source termination). Izvi zvinopa nzira ye "low-impedance" kuenda kumagetsi kana pasi, zvichitora simba remasaini pakusvika, nokudaro zvichibvisa kuratidzwa, kuchenesa ma "signal waveforms", uye kuve nechokwadi chekuti data rinotumirwa zvakanaka. Uku ndiko kushandiswa kwaro kwakakurumbira uye kwakapararira muma "memory modules" (DIMMs) uye ma "motherboard designs".
2. Maseketi eRF ne microwave
Mumidziyo yekutaurirana isina waya, masisitimu eradar, zvishandiso zvekuyedza, uye mamwe masisitimu eRF, Drop-In Termination inoshandiswa semutoro unoenderana nezvinobuda mumagetsi, macouplers, uye ma amplifiers. Inopa 50Ω impedance yakajairwa, ichitora simba rakawandisa reRF, ichivandudza kupatsanurwa kwechiteshi, ichideredza zvikanganiso zvekuyera, uye ichidzivirira kuratidzwa kwesimba kudzivirira zvikamu zveRF zvinonzwa uye kuona mashandiro esystem.
3. Nzvimbo dzekukurukurirana dzinomhanya zvakanyanya
Muzviitiko apo waya dzebhodhi dzakareba kana kuti topology yakaoma, senge PCIe, SATA, SAS, USB 3.0+, nedzimwe nzira dzekufambisa dzinomhanya zvakanyanya dzine zvinodiwa zvemhando yesignali yakasimba, Drop-In Termination yemhando yepamusoro inoshandiswa pakuenzanisa zvakanaka.
4. Midziyo yekutaurirana nekutaurirana
Muma routers, switches, optical modules, nezvimwe zvishandiso, uko mitsara yesignali inomhanyisa zvikuru pama backplanes (semuenzaniso, 25G+) inoda kudzora kwakasimba kwe impedance, Drop-In Termination inoshandiswa pedyo nema backplane connectors kana kumagumo emitsetse mirefu yekutumira kuti iwedzere kunaka kwesignali uye kuderedza bit error rate (BER).

QualwaveZvishandiso zveDorp-In Terminations zvinofukidza huwandu hwemafrequency DC~3GHz. Simba rekubata rinosvika mawatts zana.