Waveguide Twists RF Microwave Millimeter Wave Xov Tooj Cua

RF waveguide, lo lus feem ntau npog ntau hom hollow hlau waveguides thiab surface waveguides. Ntawm lawv, tus thawj hu ua kaw waveguide vim tias lub electromagnetic nthwv dej uas nws xa tawm yog kaw tag nrho hauv lub raj hlau. Qhov kawg kuj hu ua qhib waveguide vim tias lub electromagnetic nthwv dej uas nws coj yog kaw rau ntawm qhov puag ncig ntawm cov qauv waveguide. Cov xov tooj cua zaus waveguides no ua lub luag haujlwm tseem ceeb hauv microwave qhov cub, radars, kev sib txuas lus satellites, thiab microwave xov tooj cua txuas khoom siv, qhov chaw uas lawv yog lub luag haujlwm rau kev txuas microwave transmitters thiab receivers rau lawv lub antennas. Waveguide twist kuj hu ua waveguide torsion joint. Nws hloov qhov kev taw qhia ntawm polarization los ntawm kev thim rov qab qhov kev taw qhia ntawm sab dav thiab nqaim ntawm ob qho kawg, yog li ntawd lub electromagnetic nthwv dej hla dhau nws, qhov kev taw qhia ntawm polarization hloov pauv, tab sis qhov kev taw qhia ntawm kev nthuav dav tseem tsis hloov pauv.
Thaum txuas cov millimeter wave waveguides, yog tias sab dav thiab nqaim ntawm ob lub waveguides nyob rau sab nraud, nws yog qhov tsim nyog los ntxig cov twisted waveguide no ua qhov kev hloov pauv. Qhov ntev ntawm cov waveguide twist yuav tsum yog tus lej ntau ntawm λ g / 2, thiab qhov luv tshaj plaws yuav tsum tsis pub tsawg dua 2 λ g (qhov twg λ g yog qhov wavelength ntawm waveguide).