Sebakeng sa lisebelisoa tsa mahlaseli a motlakase, li-antenna tsa RF le li-antenna tsa microwave hangata lia ferekanngoa, empa ha e le hantle ho na le liphapang tsa mantlha. Sengoliloeng sena se etsa tlhahlobo ea litsebi ho tsoa likarolong tse tharo: tlhaloso ea frequency band, molao-motheo oa moralo, le ts'ebetso ea tlhahiso, haholoholo ho kopanya mahlale a bohlokoa joalo ka.vacuum brazing.
RF MISOSebōpi sa Vacuum Brazing
1. Maqhubu a sehlopha sa maqhubu le litšobotsi tsa 'mele
RF antenna:
Sehlopha sa maqhubu a ts'ebetso ke 300 kHz - 300 GHz, se koahelang maqhubu a mahareng (535-1605 kHz) ho millimeter wave (30-300 GHz), empa lits'ebetso tsa mantlha li tsepamisitsoe ho <6 GHz (joalo ka 4G LTE, WiFi 6). Bophahamo ba maqhubu bo bolelele (centimithara ho isa boemong ba mithara), sebopeho ke haholo-holo dipole le antenna ea whip, 'me kutloisiso ea mamello e tlase (± 1% wavelength ea amoheleha).
Antenna ea microwave:
Haholo-holo 1 GHz - 300 GHz (microwave ho isa millimeter wave), lihlopha tse tloaelehileng tsa maqhubu a ts'ebeliso joalo ka X-band (8-12 GHz) le Ka-band (26.5-40 GHz). Litlhoko tsa bolelele bo bokhutšoane (boemo ba millimeter):
✅ Ho nepahala ha boemo ba Submillimeter (mamello ≤±0.01λ)
✅ Taolo e thata ea bokaholimo (<3μm Ra)
✅ Tahlehelo e tlase ea dielectric substrate (ε r ≤2.2, tanδ≤0.001)
2. Theknoloji ea metsi ea theknoloji ea tlhahiso
Ts'ebetso ea li-antenna tsa microwave e itšetlehile haholo ka theknoloji ea tlhahiso ea maemo a holimo:
| Thekenoloji | Antenna ea RF | Antenna ea Microwave |
| Theknoloji ea khokahano | Soldering/ Ho tiisa screw | Vacuum Brazed |
| Bafepedi ba Tloaelehileng | Feme ea Kakaretso ea Elektronike | Likhamphani tsa Brazing joalo ka Solar Atmospheres |
| Litlhoko tsa ho cheselletsa | Khokahano e tsamaisang | Ho kenella ha oksijene ea Zero, ho hlophisoa bocha ha sebopeho sa lijo-thollo |
| Lintlha tsa bohlokoa | Ho hanyetsa <50mΩ | Khokahano ea katoloso ea mocheso (ΔCTE<1ppm/℃) |
Boleng ba mantlha ba vacuum brazing ka li-antenna tsa microwave:
1. Khokahano e se nang oxidation: brazing sebakeng sa vacuum ea 10 -5 Torr ho qoba oxidation ea li-alloys tsa Cu/Al le ho boloka conductivity>98% IACS
2. Ho felisoa ha khatello ea mocheso: ho futhumala ha gradient ho ea ka holim'a mokelikeli oa thepa ea brazing (mohlala, BAISI-4 alloy, liquidus 575 ℃) ho felisa li-microcracks.
3. Taolo ea ho fetola: ho senyeha ka kakaretso <0.1mm / m ho netefatsa ho lumellana ha mekhahlelo ea millimeter wave
3. Papiso ea ts'ebetso ea motlakase le maemo a kopo
Litšobotsi tsa mahlaseli:
1.RF antenna: haholo-holo mahlaseli a omnidirectional, fumana ≤10 dBi
2.Antenna ea Microwave: e lebisang holimo haholo (bophara bo boholo 1 ° -10 °), fumana 15-50 dBi
Lisebelisoa tse tloaelehileng:
| Antenna ea RF | Antenna ea Microwave |
| tora ea seea-le-moea sa FM | Likarolo tsa T / R tsa Radar tse hlophisitsoeng |
| Li-Sensors tsa IoT | Phepelo ea puisano ea satellite |
| Li-tag tsa RFID | 5G mmWave AAU |
4. Liphapano tsa netefatso ea liteko
RF antenna:
- Tsepamiso ea maikutlo: Tšitiso ea ho se sebetse (VSWR <2.0)
- Mokhoa: Vector network analyzer frequency fiela
Antenna ea microwave:
- Tsepamiso ea maikutlo: Paterone ea mahlaseli/mohato o tsitsitseng
- Mokhoa: Haufi le sebaka sa ho hlahloba (ho nepahala λ/50), teko ea sebaka se kopanetsoeng
Qetello: Li-antenna tsa RF ke lejoe la sekhutlo la khokahanyo ea mehala e akaretsang, ha li-antenna tsa microwave e le motheo oa litsamaiso tsa maqhubu a holimo le tse nepahetseng haholo. Phapang pakeng tsa tse peli ke:
1. Keketseho ea maqhubu e lebisa ho leqhubu le khutsufalitsoeng, e leng se bakang phetoho ea paradigm moahong.
2. Phetoho ea ts'ebetso ea tlhahiso - li-antenna tsa microwave li itšetlehile ka mahlale a morao-rao joalo ka vacuum brazing ho netefatsa ts'ebetso.
3. Ho rarahana ha liteko ho hola ka mokhoa o makatsang
Litharollo tsa vacuum brazing tse fanoeng ke lik'hamphani tsa profeshenale tse kang Solar Atmospheres li fetohile tiiso ea bohlokoa bakeng sa ho tšepahala ha litsamaiso tsa maqhubu a millimeter. Ha 6G e ntse e hola ho ea sehlopheng sa maqhubu a terahertz, boleng ba ts'ebetso ena bo tla hlahella haholoanyane.
Ho ithuta haholoanyane ka li-antenna, ka kopo etela:
Nako ea poso: May-30-2025
