• Rau kev faib lub teeb liab rau hauv ob lub teeb liab ntawm qhov sib npaug amplitude thiab qhov tsis tu ncua 90 ° lossis 180 ° theem sib txawv.
• Rau quadrature combining los yog ua summation/differential combining.
Taw qhia
Couplers thiab hybrids yog cov khoom siv nyob rau hauv uas ob txoj kab sib kis tau ze txaus rau ib leeg rau lub zog nthuav tawm ntawm ib kab rau ob peb mus rau lwm txoj kab. 3dB 90 ° lossis 180 ° hybrid faib cov teeb liab tawm tswv yim rau hauv ob qhov sib npaug ntawm qhov sib npaug. Ib qho kev taw qhia txuas ib txwm faib cov teeb liab tawm tswv yim rau hauv ob qhov tsis sib xws amplitude outputs. Qhov no terminology "directional coupler", "90 ° hybrid", thiab "180 ° hybrid" yog raws li cov lus pom zoo. Txawm li cas los xij, 90 ° thiab 180 ° hybrids tuaj yeem xav tias yog 3 dB directional couplers. Txawm hais tias qhov zoo sib xws no, cov kev txwv siv los piav qhia txog cov teeb liab ntws hauv cov kev taw qhia kev sib txuas thiab daim ntawv thov, hauv kev siv tiag tiag, yog qhov sib txawv txaus los lav qhov kev txiav txim siab.
180° Hybrids Functional Description
A 180 ° hybrid yog ib qho khoom siv plaub-chaw nres nkoj uas muab ob qhov sib npaug amplitude hauv-theem teeb liab thaum pub los ntawm nws qhov chaw nres nkoj (S) thiab ob qhov sib npaug amplitude 180 ° tawm-ntawm-theem teeb liab thaum pub los ntawm nws qhov chaw nres nkoj sib txawv (D). Hloov pauv, cov teeb liab nkag mus rau hauv cov chaw nres nkoj C thiab D yuav ntxiv ntawm qhov chaw nres nkoj (B) thiab qhov sib txawv ntawm ob lub teeb liab yuav tshwm sim ntawm qhov sib txawv chaw nres nkoj (A). Daim duab 1 yog daim duab ua haujlwm uas yuav siv rau hauv kab lus no los sawv cev rau 180 ° hybrid. Chaw nres nkoj B tuaj yeem suav tias yog qhov chaw nres nkoj sum thiab chaw nres nkoj A yog qhov chaw nres nkoj sib txawv. Cov chaw nres nkoj A thiab B thiab cov chaw nres nkoj C thiab D yog ib khub ntawm cov chaw nres nkoj.
90 ° Hybrids los yog hybrid couplers yog qhov pib ntawm 3 dB directional couplers nyob rau hauv uas theem ntawm lub teeb liab tso zis thiab cov teeb liab tso tawm yog 90 ° sib nrug. Txij li thaum -3 dB sawv cev rau ib nrab lub zog, 3 dB coupler faib lub hwj chim sib npaug (hauv ib qho kev kam rau siab) ntawm cov zis thiab cov chaw nres nkoj sib txuas. Qhov sib txawv ntawm 90 ° theem ntawm cov zis ua rau hybrids muaj txiaj ntsig zoo hauv kev tsim cov khoom siv hluav taws xob sib txawv ntawm cov khoom siv hluav taws xob, microwave mixers, modulators thiab ntau lwm cov khoom siv microwave thiab tshuab. Daim duab 5 qhia txog daim duab kos duab thiab cov lus tseeb uas yuav siv los piav qhia txog kev ua haujlwm ntawm RF zaus 90 ° hybrid. Raws li tuaj yeem pom los ntawm daim duab no, lub teeb liab siv rau ib qho kev tawm tswv yim yuav ua rau ob qho tib si amplitude signals uas yog quadrature, los yog 90 °, tawm ntawm theem nrog ib leeg. Chaw nres nkoj A thiab B thiab Chaw nres nkoj C thiab D yog cais. Raws li yav dhau los tau hais nyob rau hauv 180 ° hybrid seem, RF thiab microwave zaus cov cuab yeej siv ntau txoj kev tsim kho. Txawm hais tias cov lus teb theoretical zoo ib yam, qhov chaw nres nkoj thiab lub rooj sib tham sib txawv. Hauv qab no, hauv daim duab yog "cross-over" thiab "non-crossover" versions muaj rau microwave zaus (500 MHz thiab siab dua) thiab cov lus qhia qhov tseeb. Cuaj caum degree hybrids tseem hu ua quadrature hybrids vim hais tias cov theem ntawm ob qhov tso zis yog ib tug quadrant (90 °) sib nrug. Nco ntsoov tias nws tsis muaj qhov sib txawv uas qhov chaw nres nkoj yog qhov chaw nres nkoj input ntev npaum li kev sib raug zoo ntawm cov chaw nres nkoj tseem nyob. Qhov no yog vim 90 ° hybrids yog hluav taws xob thiab mechanically symmetrical txog X thiab Y Axes.
Si Chuan Keenlion Microwave xaiv ntau ntawm 3DB hybrid choj nyob rau hauv nqaim band thiab broadband configurations, npog zaus ntawm 0.5 mus rau 50 GHz. Lawv tau tsim los tswj los ntawm 10 mus rau 30 watts input zog hauv 50-ohm kis tau tus mob. Microstrip los yog stripline designs yog siv, thiab optimized rau kev ua tau zoo tshaj plaws.
Cov chav nyob tuaj txheem nrog SMA lossis N poj niam connectors, lossis 2.92mm, 2.40mm, thiab 1.85mm connectors rau cov khoom siv ntau zaus.
Peb kuj tuaj yeem kho 3DB Hybrid Choj raws li koj xav tau. Koj tuaj yeem nkag mus rau nplooj ntawv customization los muab cov kev qhia tshwj xeeb uas koj xav tau.
Post lub sij hawm: Oct-09-2022
