Nkhani

Ma coupler otsogolera ndi mtundu wofunikira wa chipangizo chogwiritsira ntchito ma signal. Ntchito yawo yayikulu ndikuyesa ma RF signal pamlingo wokhazikika wa coupling, yokhala ndi kusiyanitsa kwakukulu pakati pa ma signal ports ndi ma sampuli ports — zomwe zimathandiza kusanthula, kuyeza ndi kukonza ma application ambiri. Popeza ndi zida zopanda ntchito, zimagwiranso ntchito motsatira njira yosiyana, ndi ma signal omwe amalowetsedwa munjira yayikulu malinga ndi momwe chipangizocho chikulowera komanso momwe chimalumikizirana. Pali kusiyana pang'ono pa kasinthidwe ka ma directional coupler, monga momwe tidzaonera pansipa.

Matanthauzo

Mwachiyembekezo, cholumikizira chingakhale chopanda kutayika, chogwirizana komanso chogwirizana. Makhalidwe oyambira a maukonde a madoko atatu ndi anayi ndi kudzipatula, kulumikizana ndi kuwongolera, zomwe zimagwiritsidwa ntchito pofotokozera zolumikizira. Cholumikizira chabwino chimakhala ndi kuwongolera ndi kudzipatula kopanda malire, pamodzi ndi chinthu cholumikizira chomwe chasankhidwa kuti chigwiritsidwe ntchito.

Chithunzi chogwira ntchito chomwe chili mu Chithunzi 1 chikuwonetsa momwe cholumikizira cholunjika chimagwirira ntchito, kutsatiridwa ndi kufotokozera kwa magawo ofanana a magwiridwe antchito. Chithunzi chapamwamba ndi cholumikizira cha madoko anayi, chomwe chimaphatikizapo madoko olumikizidwa (akutsogolo) ndi olekanitsidwa (obwerera m'mbuyo, kapena owonetsedwa). Chithunzi chapansi ndi kapangidwe ka madoko atatu, komwe kumachotsa doko lolekanitsidwa. Izi zimagwiritsidwa ntchito mu mapulogalamu omwe amafunikira kutulutsa kamodzi kolumikizana kutsogolo. Cholumikizira cha madoko atatu chikhoza kulumikizidwa mozungulira, komwe doko lomwe kale linkalumikizidwa limakhala doko lolekanitsidwa:

Chithunzi 1: Zoyambiracholumikizira cholunjikamakonzedwe

Makhalidwe a ntchito:

Cholumikizira: Izi zikusonyeza gawo la mphamvu yolowera (pa P1) yomwe imaperekedwa ku doko lolumikizidwa, P3

Kuwongolera: Ichi ndi muyeso wa kuthekera kwa cholumikizira kulekanitsa mafunde omwe amafalikira kutsogolo ndi kumbuyo, monga momwe zawonedwera pamadoko olumikizidwa (P3) ndi olekanitsidwa (P4).

Kupatula: Kumasonyeza mphamvu yoperekedwa ku katundu wosalumikizidwa (P4)

Kutayika kwa Kulowetsa: Izi zikutanthauza mphamvu yolowera (P1) yoperekedwa ku doko lotumizira (P2), lomwe limachepetsedwa ndi mphamvu yoperekedwa ku madoko olumikizidwa ndi olekanitsidwa.

Makhalidwe a makhalidwe awa mu dB ndi awa:

Kulumikiza = C = 10 log (P1/P3)

Malangizo = D = 10 log (P3/P4)

Kudzipatula = I = 10 log (P1/P4)

Kutayika kwa Kuyika = L = 10 log (P1/P2)

Mitundu ya Ogwirizanitsa

Zolumikizira Zotsogolera:

Mtundu uwu wa cholumikizira uli ndi madoko atatu ofikirika, monga momwe zasonyezedwera pa Chithunzi 2, pomwe doko lachinayi limatsekedwa mkati kuti lipereke chitsogozo chapamwamba kwambiri. Ntchito yayikulu ya cholumikizira cholunjika ndi kuyesa chizindikiro chosiyana (chobwerera m'mbuyo). Kugwiritsa ntchito kwachizolowezi ndi kuyeza mphamvu yowonetsedwa (kapena mwanjira ina, VSWR). Ngakhale kuti ikhoza kulumikizidwa mobwerera m'mbuyo, mtundu uwu wa cholumikizira siwofanana. Popeza chimodzi mwa madoko olumikizidwa chimatsekedwa mkati, chizindikiro chimodzi chokha cholumikizidwa chimapezeka. Kutsogolo (monga momwe zasonyezedwera), doko lolumikizidwa limayesa mafunde obwerera, koma ngati lalumikizidwa mobwerera (RF Input kumanja), doko lolumikizidwa lingakhale chitsanzo cha mafunde obwerera, ochepetsedwa ndi coupling factor. Ndi kulumikizana kumeneku, chipangizocho chingagwiritsidwe ntchito ngati sampler poyesa chizindikiro, kapena kupereka gawo la chizindikiro chotulutsa ku feedback circuitry.

Chithunzi 2: Cholumikizira Chowongolera cha 50-Ohm

Ubwino:

1, Magwiridwe ntchito akhoza kukonzedwa bwino kuti akwaniritse njira yopita patsogolo

2, High direction ndi kudzipatula

3. Kuwongolera kwa cholumikizira kumakhudzidwa kwambiri ndi machesi a impedance omwe amaperekedwa ndi kutha kwa doko lokhalokha. Kukonza kutha kwa mkati kumatsimikizira kuti ntchito yabwino kwambiri.

Zoyipa:

1、Kulumikiza kumapezeka pokhapokha panjira yopita patsogolo

2, Palibe mzere wolumikizidwa

3, Mphamvu ya doko lolumikizidwa ndi yocheperako kuposa doko lolowera chifukwa mphamvu yomwe imagwiritsidwa ntchito pa doko lolumikizidwa imakhala pafupifupi yonse mkati mwa kutha kwa mkati.

Si Chuan Keenlion Microwave ndi makina ambiri olumikizirana ma Directional mu mawonekedwe a narrowband ndi broadband, okhala ndi ma frequency kuyambira 0.5 mpaka 50 GHz. Amapangidwira kuti azitha kugwiritsa ntchito mphamvu yolowera ya ma watts 10 mpaka 30 mu makina otumizira ma 50-ohm. Mapangidwe a microstrip kapena stripline amagwiritsidwa ntchito, ndipo amakonzedwa kuti agwire ntchito bwino kwambiri.

Mayunitsi amabwera ndi zolumikizira zachikazi za SMA kapena N, kapena zolumikizira za 2.92mm, 2.40mm, ndi 1.85mm za zida zama frequency apamwamba.

Tikhozanso kusinthaCholumikizira Chotsogoleramalinga ndi zomwe mukufuna. Mutha kulowa patsamba losinthira kuti mupereke zofunikira zomwe mukufuna.

https://www.keenlion.com/customization/