Kapangidwe ka amlongoti wa microstripnthawi zambiri imakhala ndi dielectric substrate, radiator ndi mbale yapansi.Makulidwe a gawo lapansi la dielectric ndi ochepa kwambiri kuposa kutalika kwa mafunde.Chitsulo chopyapyala chomwe chili pansi pa gawo lapansi chimalumikizidwa ndi mbale yapansi.Kumbali yakutsogolo, chitsulo chochepa kwambiri chokhala ndi mawonekedwe apadera chimapangidwa kudzera mu njira ya photolithography ngati radiator.Maonekedwe a mbale yowunikira amatha kusinthidwa m'njira zambiri malinga ndi zofunikira.
Kukwera kwaukadaulo wophatikizira ma microwave ndi njira zatsopano zopangira zalimbikitsa kukula kwa tinyanga ta microstrip.Poyerekeza ndi tinyanga tachikhalidwe, tinyanga ta microstrip sizochepa kukula kwake, kulemera kwake, kutsika, zosavuta kugwirizanitsa, zosavuta kugwirizanitsa, zotsika mtengo, komanso zoyenera kupanga zambiri, komanso zimakhala ndi ubwino wamagetsi osiyanasiyana.
Njira zinayi zoyambirira zodyetsera za tinyanga ta microstrip ndi izi:
1. (Microstrip Feed): Iyi ndi imodzi mwa njira zodziwika bwino zodyetsera tinyanga ta microstrip.Chizindikiro cha RF chimatumizidwa ku gawo lowala la mlongoti kudzera mumzere wa microstrip, nthawi zambiri kudzera pakulumikizana pakati pa mzere wa microstrip ndi chigamba chowunikira.Njirayi ndi yosavuta komanso yosinthika komanso yoyenera kupanga ma antennas ambiri a microstrip.
2. (Aperture-Coupled Feed): Njirayi imagwiritsa ntchito mipata kapena mabowo pa mbale ya microstrip antenna kuti idyetse mzere wa microstrip mu chinthu chowunikira cha mlongoti.Njirayi imatha kupereka kufananiza kwabwinoko komanso kugwiritsa ntchito bwino kwa ma radiation, komanso kumachepetsanso m'lifupi mwake ndi lobes wam'mbali.
3. (Proximity Coupled Feed): Njirayi imagwiritsa ntchito oscillator kapena inductive element pafupi ndi microstrip line kuti idyetse chizindikiro mu mlongoti.Itha kupereka zofananira zapamwamba komanso ma frequency band, ndipo ndiyoyenera kupanga ma antennas amagulu ambiri.
4. (Coaxial Feed): Njirayi imagwiritsa ntchito mawaya a coplanar kapena zingwe za coaxial kudyetsa zizindikiro za RF mu gawo lowala la mlongoti.Njirayi nthawi zambiri imapereka kufananiza kwabwino kwa mlongoti komanso kuchita bwino kwa ma radiation, ndipo ndiyoyenera makamaka pakafunika mawonekedwe a mlongoti umodzi.
Njira zosiyanasiyana zodyetserako zikhudza kufananiza kwa ma impedance, mawonekedwe afupipafupi, magwiridwe antchito a radiation komanso mawonekedwe amkati a mlongoti.
Momwe mungasankhire malo a coaxial feed a microstrip antenna
Popanga mlongoti wa microstrip, kusankha malo a coaxial feed point ndikofunikira kuti muwonetsetse kugwira ntchito kwa mlongoti.Nazi njira zomwe mungasankhire ma feed a coaxial a microstrip antennas:
1. Symmetry: Yesani kusankha coaxial feed point pakatikati pa microstrip antenna kuti musunge kufananiza kwa mlongoti.Izi zimathandizira kukonza magwiridwe antchito a ma radiation a antenna komanso kufananiza kofananira.
2. Kumene malo amagetsi ndi aakulu kwambiri: Malo odyetserako coaxial amasankhidwa bwino pamalo omwe gawo lamagetsi la microstrip antenna ndilo lalikulu kwambiri, lomwe lingathe kupititsa patsogolo mphamvu ya chakudya ndikuchepetsa kutayika.
3. Kumene kuli kokwanira: Malo odyetserako coaxial akhoza kusankhidwa pafupi ndi malo omwe mlongoti wa microstrip umakhala wochuluka kwambiri kuti upeze mphamvu ya radiation yapamwamba komanso kuchita bwino.
4. Zero electric field point in single mode: Mu mapangidwe a antenna a microstrip, ngati mukufuna kukwaniritsa ma radiation a single mode, coaxial feed point nthawi zambiri imasankhidwa pa zero electric field point mu single mode kuti mukwaniritse bwino zofananira ndi ma radiation.khalidwe.
5. Kusanthula pafupipafupi ndi mawonekedwe a mafunde: Gwiritsani ntchito zida zofananira kuti musese pafupipafupi komanso kusanthula kwamagetsi / kugawa kwapano kuti mudziwe malo abwino kwambiri a coaxial feed point.
6. Ganizirani za mayendedwe a mtengo: Ngati mawonekedwe a radiation omwe ali ndi chiwongolero chapadera akufunika, malo a coaxial feed point amatha kusankhidwa molingana ndi njira ya mtengo kuti apeze momwe ma radiation ya antenna akufunira.
Muzojambula zenizeni, nthawi zambiri zimakhala zofunikira kuphatikiza njira zomwe zili pamwambazi ndikuzindikira malo abwino kwambiri a coaxial feed point poyesa kusanthula ndi zotsatira zenizeni zoyezera kuti akwaniritse zofunikira za mapangidwe ndi zizindikiro za ntchito ya microstrip antenna.Panthawi imodzimodziyo, mitundu yosiyanasiyana ya tinyanga tating'onoting'ono (monga patch antennas, helical antennas, etc.) ikhoza kukhala ndi malingaliro enaake posankha malo a coaxial feed point, yomwe imafuna kusanthula kwachindunji ndi kukhathamiritsa kutengera mtundu wa mlongoti ndi ntchito zochitika..
Kusiyana pakati pa mlongoti wa microstrip ndi mlongoti wa patch
Mlongoti wa Microstrip ndi patch antenna ndi tinyanga tating'ono tating'ono tiwiri.Iwo ali ndi zosiyana ndi makhalidwe:
1. Kapangidwe ndi masanjidwe:
- Mlongoti wa microstrip nthawi zambiri umakhala ndi chigamba cha microstrip ndi mbale yapansi.Chigamba cha microstrip chimagwira ntchito ngati chowunikira ndipo chimalumikizidwa ndi mbale yapansi kudzera mu mzere wa microstrip.
- Tinyanga tating'onoting'ono nthawi zambiri zimakhala zigamba zomangika zomwe zimakhazikika pagawo la dielectric ndipo sizifuna mizere yaying'ono ngati tinyanga tating'onoting'ono.
2. Kukula ndi mawonekedwe:
- Minyanga ya Microstrip ndi yaying'ono kukula kwake, yomwe nthawi zambiri imagwiritsidwa ntchito m'magulu a ma frequency a microwave, ndipo imakhala ndi mawonekedwe osinthika.
- Mapatch antennas amathanso kupangidwa kuti akhale ocheperako, ndipo nthawi zina, miyeso yawo imatha kukhala yaying'ono.
3. Kusiyanasiyana:
- Mafupipafupi a tinyanga tating'onoting'ono tating'onoting'ono tating'onoting'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono ta megahertz mpaka magigahertz angapo, okhala ndi mawonekedwe enaake.
- Tinyanga tating'onoting'ono timakhala ndi magwiridwe antchito abwinoko pama bandi apadera ndipo nthawi zambiri amagwiritsidwa ntchito pafupipafupi.
4. Njira yopangira:
- Minyanga ya Microstrip nthawi zambiri imapangidwa pogwiritsa ntchito makina osindikizira a board, omwe amatha kupangidwa mochuluka komanso kukhala ndi mtengo wotsika.
- Tinyanga tating'onoting'ono nthawi zambiri zimapangidwa ndi zinthu zopangidwa ndi silicon kapena zida zina zapadera, zimakhala ndi zofunikira zina zogwirira ntchito, ndipo ndizoyenera kupanga magulu ang'onoang'ono.
5. Makhalidwe a polarization:
- Minyanga ya Microstrip imatha kupangidwira polarization yozungulira kapena polarization yozungulira, kuwapatsa kusinthasintha kwina.
- Maonekedwe a polarization wa tinyanga ta zigamba nthawi zambiri zimadalira kapangidwe kake ndi kamangidwe ka mlongoti ndipo sasinthasintha ngati tinyanga tating'onoting'ono.
Mwambiri, tinyanga tating'onoting'ono ndi tinyanga tating'onoting'ono timasiyana pamapangidwe, ma frequency angapo, komanso kupanga.Kusankha mtundu wa mlongoti woyenera kuyenera kutengera zofunikira za kagwiritsidwe ntchito ndi malingaliro apangidwe.
Malangizo azinthu za Microstrip antenna:
RM-MPA1725-9 (1.7-2.5GHz)
RM-MPA2225-9 (2.2-2.5GHz)
RM-MA25527-22 (25.5-27GHz)
RM-MA424435-22(4.25-4.35GHz)
Nthawi yotumiza: Apr-19-2024
