Nkhani

Directional couplers ndi mtundu wofunikira wa chipangizo chopangira ma sigino. Ntchito yawo yayikulu ndikuyesa ma siginecha a RF pamlingo wodziwikiratu wolumikizana, ndikudzipatula kwambiri pakati pa madoko azizindikiro ndi madoko otsatiridwa - zomwe zimathandizira kusanthula, kuyeza ndi kukonza ntchito zambiri. Popeza ndi zida zopanda pake, zimagwiranso ntchito molowera chakumbuyo, ndi ma sign omwe amalowetsedwa munjira yayikulu molingana ndi momwe zida zimayendera komanso kuchuluka kwa kulumikizana. Pali zosiyana pang'ono pamasinthidwe a ma couplers otsogolera, monga momwe tiwonere pansipa.

Matanthauzo

Momwemonso, coupler ingakhale yopanda kutaya, yofanana ndi yofanana. Zofunikira za ma netiweki a madoko atatu ndi anayi ndizodzipatula, kulumikizana ndi kuwongolera, zomwe zimagwiritsidwa ntchito pozindikiritsa okwatirana. Ma coupler abwino amakhala ndi chiwongolero chopanda malire komanso kudzipatula, pamodzi ndi chinthu cholumikizira chomwe chasankhidwa kuti chigwiritsidwe ntchito.

Chithunzi chogwira ntchito mu Mkuyu 1 chikuwonetseratu ntchito ya coupler yotsogolera, yotsatiridwa ndi kufotokoza kwa magawo okhudzana ndi ntchito. Chithunzi chapamwamba ndi 4-port coupler, yomwe imaphatikizapo zonse ziwiri (zopita patsogolo) ndi madoko (obwerera, kapena owonetsera). Chojambula chapansi ndi mawonekedwe a 3-port, omwe amachotsa doko lakutali. Izi zimagwiritsidwa ntchito pazinthu zomwe zimangofunika kutulutsa kamodzi kophatikizana. 3-port coupler imatha kulumikizidwa chakumbuyo, komwe doko lomwe lidalumikizidwa kale limakhala doko lakutali:

Chithunzi 1: Choyambiranjira couplermasinthidwe

Makhalidwe amachitidwe:

Coupling Factor: Izi zikuwonetsa gawo la mphamvu zolowetsa (pa P1) zomwe zimaperekedwa ku doko lophatikizidwa, P3.

Kuwongolera: Uwu ndi muyeso wa kuthekera kwa coupler kulekanitsa mafunde omwe akufalikira kutsogolo ndi kumbuyo, monga momwe amawonera pa madoko ophatikiza (P3) ndi akutali (P4)

Kudzipatula: Kuwonetsa mphamvu yoperekedwa ku katundu wosaphatikizidwa (P4)

Kutayika Kwakulowetsa: Izi zimatengera mphamvu yolowera (P1) yoperekedwa ku doko lopatsira (P2), lomwe limachepetsedwa ndi mphamvu yoperekedwa kumadoko ophatikizidwa ndi akutali.

Makhalidwe awa mu dB ndi awa:

Kuphatikiza = C = chipika cha 10 (P1/P3)

Kuwongolera = D = chipika cha 10 (P3/P4)

Kudzipatula = I = 10 chipika (P1/P4)

Kutayika Kwambiri = L = chipika 10 (P1/P2)

Mitundu ya Maanja

Directional Couplers:

Mtundu uwu wa coupler uli ndi madoko atatu ofikirika, monga momwe tawonetsera mkuyu. 2, pomwe doko lachinayi limathetsedwa mkati kuti lipereke kuwongolera kwakukulu. Ntchito yayikulu ya coupler yolunjika ndikuyesa chizindikiro chakutali (reverse). Ntchito yodziwika bwino ndikuyezera mphamvu yowonetsedwa (kapena mwanjira ina, VSWR). Ngakhale imatha kulumikizidwa mobwerera, mtundu uwu wa coupler siwofanana. Popeza imodzi mwamadoko ophatikizidwa imathetsedwa mkati, chizindikiro chimodzi chokha chophatikizika chimapezeka. Kutsogolo (monga momwe zasonyezedwera), madoko ophatikizika amayesa mafunde obwerera kumbuyo, koma ngati alumikizidwa chakumbuyo (Kulowetsa kwa RF kumanja), doko lolumikizidwa lingakhale chitsanzo cha mafunde akutsogolo, ochepetsedwa ndi coupling factor. Ndi kulumikizidwa uku, chipangizochi chingagwiritsidwe ntchito ngati sampuli poyezera ma siginecha, kapena kupereka gawo la siginecha yotulutsa kumayendedwe obwereza.

Chithunzi 2: 50-Ohm Directional Coupler

Ubwino:

1, Magwiridwe amatha kukonzedwa panjira yakutsogolo

2, Kuwongolera kwakukulu komanso kudzipatula

3, Kuwongolera kwa coupler kumakhudzidwa kwambiri ndi machesi a impedance operekedwa ndi kuthetsedwa padoko lakutali. Kupereka kuthetsedwa kumeneku mkati kumatsimikizira magwiridwe antchito apamwamba

Zoyipa:

1, Kulumikizana kumangopezeka panjira yopita patsogolo

2. Palibe mzere wolumikizana

3, Chiyerekezo cha mphamvu zamadoko chophatikizika ndi chocheperako polowera chifukwa mphamvu yomwe imagwiritsidwa ntchito padoko lophatikizika imathetsedwa pakutha kwamkati.

Si Chuan Keenlion Microwave kusankha kwakukulu kwa Directional Coupler mumipangidwe yocheperako komanso ma Broadband, kuphimba ma frequency kuchokera ku 0.5 mpaka 50 GHz. Amapangidwa kuti azigwira kuchokera pa 10 mpaka 30 watts kulowetsa mphamvu mu 50-ohm transmission system. Mapangidwe a Microstrip kapena stripline amagwiritsidwa ntchito, ndikukonzedwa kuti azigwira bwino ntchito.

Mayunitsi amabwera muyezo wokhala ndi zolumikizira za SMA kapena N zazikazi, kapena 2.92mm, 2.40mm, ndi zolumikizira za 1.85mm pazigawo zapamwamba kwambiri.

Tikhozanso makonda aDirectional Couplermalinga ndi zomwe mukufuna. Mutha kulowa patsamba losintha kuti mupereke zomwe mukufuna.

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