High Gain L-Band Directional Kauv Kav hlau txais xov / Helical kav hlau txais xov

Lub kav hlau txais xov helical / Kauv kav hlau txais xov yog ib hom tshwj xeeb ntawm tus kav hlau txais xov uas tuaj yeem xa thiab tau txais cov teeb liab polarized electromagnetic rotating hauv qhov chaw. Hom kav hlau txais xov no feem ntau yog siv rau hauv av chaw nres tsheb rau kev sib txuas lus satellite thiab yog tsim los ntawm cov hlau spirals nrog cov khoom zoo conductive. Nws feem ntau yog pub los ntawm coaxial cable, qhov twg cov tub ntxhais hlau ntawm coaxial cable txuas nrog rau ib kawg ntawm cov kauv hlau thiab cov neeg xyuas pib sab nrauv txuas nrog cov hlau mesh lossis phaj. Cov yam ntxwv hluav taws xob ntawm lub kav hlau txais xov kauv yog ze ze rau qhov ncig ntawm nws cov kauv: thaum lub voj voog me dua li lub wavelength, lub ntsiab hluav taws xob kev taw qhia yog perpendicular mus rau lub kauv axis; Thaum lub voj voog nyob ze ntawm lub wavelength, lub zog hluav taws xob zoo tshaj plaws tshwm nyob rau hauv cov kev taw qhia ntawm cov kauv axis.

Helical antennas / Kauv kav hlau txais xov muaj cov yam ntxwv tseem ceeb hauv qab no:

1. Radiation feem ntau yog concentrated nyob rau hauv axis kev taw qhia ntawm tus kav hlau txais xov.
2. Muaj peev xwm tsim cov voj voog polarized, zoo tiv thaiv kev cuam tshuam ntau yam thiab teeb liab cuam tshuam.
3. Qhov kev faib tawm tam sim no ntawm tus kav hlau txais xov qhia tau hais tias muaj kev taug kev yoj lub cev, uas pab kom ua tiav cov nyhuv hluav taws xob zoo ib yam.
4. Lub input impedance yog nyob ze rau cov ntshiab tsis kam, uas yooj yim rau kev tsim ntawm kev sib txuam network thiab txhim kho efficiency.
5. Nws muaj cov yam ntxwv dav dav thiab tuaj yeem tswj cov hluav taws xob ua haujlwm tau zoo nyob rau hauv ntau qhov ntau zaus.

Vim lawv cov yam ntxwv tiaj tus impedance, zoo heev ncig polarization kev ua tau zoo, thiab zoo kawg nkaus-hluav taws thiab sab-hluav taws muaj peev xwm, helical antennas tau dav siv nyob rau hauv ntau yam xws li aerospace, meteorology, positioning, thiab relay kev sib txuas lus. Nrog rau kev txhim kho txuas ntxiv ntawm kev sib txuas lus thev naus laus zis, kev ua tau zoo ntawm hluav taws xob zoo ntawm helical kav hlau txais xov yuav tsum muab cov ntawv thov dav dua thiab qhov chaw loj hlob yav tom ntej.