Mawonekedwe:
- Mtengo wapatali wa magawo VSWR
Mawaveguide ndi zida zomwe zimatumiza mphamvu kuchokera kumalo amodzi kupita kwina. M'malo motulutsa mphamvu molunjika m'malo onse ngati mlongoti, mafundewa amatha kutsekereza mphamvu muzitsulo zopanda kanthu, zomwe zimachepetsa kwambiri kutayika panthawi yotumiza mphamvu. The waveguide imatha kumveka ngati mlongoti wolunjika kwambiri, ndipo mphamvuyo imatha kufalitsidwa mumayendedwe oyenda, ndipo sangathe kufalikira kwina.
Kusintha kwa Waveguide ndi imodzi mwa ma waveguide , omwe amagwiritsidwa ntchito kwambiri m'madera osiyanasiyana, kuphatikizapo koma osalekeza ku mauthenga a microwave, machitidwe a radar, ma satellites olankhulana ndi zida zolumikizira wailesi ya microwave. Pali mitundu yambiri ya kusintha kwa waveguide, nthawi zambiri kumakhala ndi magwiridwe antchito apamwamba, omwe amayimirira mafunde a VSWR≤1.2 mkati mwa bandwidth yonse ya waveguide, zida zoyambira kuphatikiza mkuwa, aluminiyamu, njira zamankhwala zopangira siliva, plating golide, nickel plating, passivation, conductive oxidation, etc. .
Chodziwika bwino cha transition waveguide ndikuti madoko awiriwa amagwiritsa ntchito mitundu yosiyanasiyana ya ma waveguide kuti asinthe pakati pa mitundu yosiyanasiyana ya ma waveguide. Mwachitsanzo:
1. Waveguide to microstrip converters: Waveguide to microstrip converters amagwiritsidwa ntchito kwambiri pozindikira ma millimeter wave monolithic integrated circuits ndi hybrid circuits, komanso kugwirizana kwa waveguide ku mabwalo a planar kuti atsimikizire kusintha kofanana pakati pa mizere iwiri yotumizira. .
2. Kusintha kuchokera ku ma waveguide okhala ndi mikwingwirima iwiri kupita ku ma waveguide amakona anayi: Mafunde osinthika opangidwa ndi makina olondola amatha kulumikiza mafunde okhala ndi mipiringidzo iwiri kumayendedwe amakona amakona, kumapereka kutayika kocheperako komanso kufanana kwakukulu. Mtundu woterewu wa kusintha kwa ma waveguide ndi woyenera kuyika ma labotale ndikuyezera kusonkhana ndi zida zamitundu iwiri ya rectangular waveguide.
3. Kusintha kwa rectangular waveguide: The rectangular waveguide uniformly convert TE10 mode in standard rectangular waveguide to TE11 mode mu circular waveguide. Kutembenukaku ndikofunikira pakutumiza ma siginecha bwino kuchokera kumayendedwe a rectangular waveguide kupita ku circular waveguide, makamaka m'mapulogalamu omwe kutembenuka kumeneku kumafunikira.
Qualwaveamapereka kusintha kwa waveguide kuphimba ma frequency osiyanasiyana mpaka 173GHz, komanso kusintha kwa ma waveguide malinga ndi zomwe makasitomala amafuna.
Gawo Nambala | RF pafupipafupi(GHz, Min.) | RF pafupipafupi(GHz, Max.) | Kutayika Kwawo(dB, Max.) | Chithunzi cha VSWR(Max.) | Kukula kwa Waveguide | Flange | Nthawi yotsogolera(Masabata) |
---|---|---|---|---|---|---|---|
QWTR-10-6 | 113 | 173 | 0.8 | 1.2 | WR-10 (BJ900), WR-6 | FUGP900, FUGP1400 | 2~4 |
QWTR-19-15 | 50 | 75 | 0.12 | 1.15 | WR-19 (BJ500), WR-15 (BJ620) | UG-383/UM, UG-385/U | 2~4 |
QWTR-51-42 | 17.6 | 22 | 0.1 | 1.15 | WR-51 (BJ180), WR-42 (BJ220) | FBP180, FBP220 | 2~4 |
QWTR-D650-90 | 8.2 | 12.5 | - | 1.2 | WRD-650, WR-90 (BJ100) | FPWRD650, FBP100 | 2~4 |