Hauv cov kab ke sib txuas lus microwave, qhov nce ntawm lub kav hlau txais xov yog qhov qhia tseem ceeb rau kev ntsuas kev ua haujlwm ntawm lub zog hluav taws xob. Ua ib tus kws tshaj lijtus neeg muag khoom microwave antenna, peb paub zoo txog qhov tseem ceeb ntawm kev xam thiab ntsuas qhov nce ntawm lub antenna kom raug rau kev ua kom zoo dua qub. Tsab xov xwm no yuav siv qhov40GHz kav hlau txais xovthiabKav hlau txais xov Cassegrainua piv txwv los qhia txog kev xam lej thiab cov ntsiab lus ntawm kev nce antenna.
1. Lub hauv paus kev xam lej theoretical
Antenna nce (dBi) yog txiav txim siab los ntawm kev coj ua thiab kev ua haujlwm zoo:
Qhov nce (dBi) = kev coj ua × kev ua haujlwm zoo
1. Kev suav qhov ncaj qha:
Tau txais los ntawm kev koom ua ke ntawm cov qauv hluav taws xob, cov kav hlau txais xov siab (xws li Cassegrain antennas) tuaj yeem sib sau ua ke lub zog hauv lub teeb nqaim.
2. Kev xav txog kev ua haujlwm tau zoo:
Cov yam tseem ceeb ntawm kev poob nyiaj hauv qab no yuav tsum tau xav txog:
- Kev poob ntawm tus pub mov (xws li qhov tsis sib xws ntawm lub zog waveguide)
- Kev poob khoom
- Kev ua tiav ntawm qhov chaw
2. Cov txheej txheem ntsuas kev tshaj lij
1. Txoj kev sim sib piv:
Piv lub kav hlau txais xov uas raug sim (xws li lub kav hlau txais xov 40GHz) nrog lub kav hlau txais xov txheem.
2. Kev sim deb ntawm thaj chaw deb:
Ntsuas cov qauv hluav taws xob hauv chav tsaus ntuj uas siv lub tshuab microwave, uas yog ib txoj kev sim tshaj lij uas cov neeg muag khoom antenna feem ntau siv.
3. Kev sim tshuaj ntsuam network:
Soj ntsuam qhov poob rov qab thiab kev ua haujlwm ntawm lub zog hluav taws xob los ntawm kev tshuaj xyuas S parameter.
Broadband Horn Antenna(18-40GHz)
Waveguide rau Coaxial Adapter (26.5-40GHz)
Waveguide Probe Antenna(26.5-40GHz)
RFmisoCov Khoom Siv Kav Hlau 40Ghz
3. Kev siv tshuab ua pov thawj simulation
Siv cov software simulation electromagnetic xws li HFSS thiab CST:
- Xam qhov ua tau zoo ntawm qhov aperture (tshwj xeeb tshaj yog qhov tseem ceeb rau **Cassegrain antenna** thiab lwm yam reflector antennas)
- Tshawb xyuas qhov sib npaug ntawm cov khoom noj
- Soj ntsuam qhov cuam tshuam ntawm **waveguidethauj khoom**
4. Cov ntsiab lus tseem ceeb ntawm kev xyaum ua haujlwm engineering
1. Cov yam ntxwv zaus:
Qhov nce ntawm lub antenna muaj qhov sib raug zoo ntawm zaus (xws li qhov nce ntawm lub antenna 40GHz yuav txo qis ntawm 30GHz).
2. Tej yam ib puag ncig:
Qhov chaw teeb tsa, kev cuam tshuam ib puag ncig, thiab lwm yam yuav cuam tshuam rau qhov kev ua tau zoo tiag tiag.
3. Cov txheej txheem yuav tsum tau ua:
Kev ua haujlwm zoo ua kom ntseeg tau tias qhov kev tsim qauv theoretical tuaj yeem ua tiav.
Antenna Cassegrain (26.5-40GHz)
Cov lus qhia tshaj lij:
Rau cov kev xav tau tshwj xeeb xws li **40GHz antenna** hauv millimeter wave band lossis **Cassegrain antenna** nrog lub zog siab, nws raug pom zoo kom koom tes nrog tus kws tshaj lij **microwave antenna** uas muaj peev xwm kuaj xyuas tag nrho kom ntseeg tau tias cov khoom ua haujlwm tau zoo.
Peb muaj:
- Chav kuaj tiav
- Pab pawg neeg ntsuas kev tshaj lij
- Kev paub txog kev tsim kho vaj tse nplua nuj
Yog xav paub ntxiv txog kev txhim kho antenna gain optimization, thov hu rau peb pab neeg technical.
Yog xav paub ntxiv txog antennas, thov mus saib:
Lub sijhawm tshaj tawm: Plaub Hlis-10-2025
