Hauv kev sib txuas lus hauv microwave, kav hlau txais xov nce yog qhov taw qhia tseem ceeb rau kev ntsuas hluav taws xob ua haujlwm. Raws li tus kws tshaj lijmicrowave kav hlau txais xov xa khoom, peb paub zoo txog qhov tseem ceeb ntawm kev xam kom raug thiab ntsuas tus kav hlau txais xov nce rau kev ua kom zoo dua qub. Kab lus no yuav coj lub40 GHz kav hlau txais xovthiabCassegrain kav hlau txais xovua piv txwv los qhia kom meej txog txoj kev xam thiab cov ntsiab lus ntawm cov kav hlau txais xov nce.
1. Theoretical xam hauv paus
Kav hlau txais xov nce (dBi) yog txiav txim los ntawm directivity thiab efficiency:
Tau (dBi) = directivity × efficiency
1. Kev xam ncaj qha:
Tau txais los ntawm kev sib koom ua ke ntawm cov qauv hluav taws xob, cov kav hlau txais xov hluav taws xob siab (xws li Cassegrain antennas) tuaj yeem mloog zoo rau lub zog hauv lub nqaj nqaim.
2. Kev xav txog kev ua tau zoo:
Cov nram qab no poob yam yuav tsum tau xav txog:
- Feeder poob (xws li waveguide load mismatch)
- Cov khoom poob
- Nto ua qhov raug
2. Cov kev ntsuas kev tshaj lij
1. Txoj kev xeem sib piv:
Sib piv cov kav hlau txais xov nyob rau hauv kev sim (xws li 40GHz kav hlau txais xov) nrog tus qauv nce horn kav hlau txais xov.
2. Kev xeem nyob deb:
Ntsuas cov qauv hluav taws xob nyob rau hauv lub microwave qhov tsaus ntuj, uas yog ib txoj kev sim kev tshaj lij uas feem ntau siv los ntawm ** kav hlau txais xov xa khoom ** .
3. Network analyzer xeem:
Ntsuas qhov rov qab poob thiab hluav taws xob efficiency los ntawm S parameter tsom xam.
Broadband Horn Kav hlau txais xov(18-40GHz)
Waveguide rau Coaxial Adapter (26.5-40GHz)
Waveguide Probe Antenna(26.5-40GHz)
RF kev40Ghz Kav hlau txais xov khoom
3.Simulation pov thawj technology
Siv cov kws tshaj lij electromagnetic simulation software xws li HFSS thiab CST:
- Txheeb xyuas qhov ua tau zoo ntawm qhov aperture (tshwj xeeb yog qhov tseem ceeb rau ** Cassegrain kav hlau txais xov ** thiab lwm cov kav hlau txais xov reflector)
- Txheeb xyuas qhov kev sib tw pub
- Ntsuas qhov cuam tshuam ntawm **waveguidethauj khoom **
4. Cov ntsiab lus tseem ceeb ntawm kev coj ua engineering
1. Zaus yam ntxwv:
Tus kav hlau txais xov nce muaj qhov sib cuam tshuam loj (xws li qhov nce ntawm 40GHz kav hlau txais xov yuav txo qis ntawm 30GHz).
2. Environmental factor:
Kev teeb tsa qhov chaw, ib puag ncig cuam tshuam, thiab lwm yam yuav cuam tshuam qhov kev ua tau zoo tiag tiag.
3. Cov txheej txheem yuav tsum tau ua:
Precision machining xyuas kom meej tias qhov kev tsim theoretical tuaj yeem ua tiav.
Cassegrain Kav hlau txais xov (26.5-40GHz)
Kev cob qhia kws tshaj lij:
Rau cov kev cai tshwj xeeb xws li ** 40GHz kav hlau txais xov ** nyob rau hauv millimeter yoj band lossis ** Cassegrain kav hlau txais xov ** nrog kev nce siab, nws raug nquahu kom koom tes nrog tus kws tshaj lij ** microwave kav hlau txais xov ** nrog kev sim ua tiav kom paub meej cov khoom lag luam.
Peb muaj:
- Ua kom tiav chav kuaj
- Pab neeg ntsuas kev tshaj lij
- Muaj kev paub txog engineering
Xav paub ntau ntxiv cov kav hlau txais xov nce kev daws teeb meem, thov koj xav tiv tauj peb pab neeg ua haujlwm.
Yog xav paub ntxiv txog antennas, thov mus saib:
Lub sij hawm xa tuaj: Plaub Hlis-10-2025
