Ubale pakati pa ** kukula kwa doko la waveguide **, ** makulidwe a flange **, ndi ** ma frequency band ** amakhazikika kuti zitsimikizire kuti zimayenderana ndi makina komanso magwiridwe antchito a RF. Pansipa pali tebulo lofananizira losavuta komanso mfundo zazikuluzikulu zamafunde am'makona apakati ndi ma flange ogwirizana nawo.
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### **Maganizo Ofunika Kwambiri**
1. **Maganizidwe a Waveguide**:
Mawaveguide amalembedwa ndi "WR" (Waveguide Rectangular) yotsatiridwa ndi nambala (mwachitsanzo, WR-90). Nambalayi imayerekezera **kukula kwa khoma lamkati lamkati** mumazana a inchi (monga WR-90 ≈ 0.90" m'lifupi mwake).
- Chitsanzo: WR-90 = 0.9" (22.86 mm) m'lifupi mwake.
2. **Mitundu ya Flange**:
Flanges amayimira mgwirizano pakati pa ma waveguide. Mitundu yodziwika bwino ndi:
- **UG/UPC** (MIL-STD): Gulu lankhondo lokhazikika (mwachitsanzo, UG-387/UPC).
- **CPR** (Zamalonda): Miyezo yaku Europe (mwachitsanzo, CPR-137).
- **Choke Flanges**: Pakutsika pang'ono, kugwiritsa ntchito mphamvu zambiri.
- **Zophimba Zophimba **: Zosavuta, zomwe zimagwiritsidwa ntchito posindikiza vacuum.
3. **Mabandi Afupipafupi**:
Mawaveguide aliwonse amathandizira ma frequency angapo kutengera miyeso yake.
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### **Waveguide-to-Flange Comparison Table**
| | **Waveguide** | **Frequency Range** | **Mtundu wa Flange** | **Miyeso ya Flange (Yodziwika)** | **Mapulogalamu** |
|------------------------------------------------------------------- | ------------------------------------------------------------------------|
| | **WR-90** | 8.2–12.4 GHz (X-band) | UG-387/UPC (MIL) | Bolt Circle: 1.872" (47.5 mm) | Radar, satellite comms. |
| | **WR-112** | 7.05–10 GHz (C-band) | UG-595/UPC | Bolt Circle: 2.400" (61.0 mm) | Radar, telecom |
| | **WR-62** | 12.4–18 GHz (Ku-band) | UG-385/UPC | Bolt Circle: 1.250" (31.75 mm) | Satellite, machitidwe ankhondo |
| | **WR-42** | 18–26.5 GHz (K-band) | UG-383/UPC | Bolt Circle: 0.800" (20.3 mm) | radar yapamwamba kwambiri |
| | **WR-28** | 26.5–40 GHz (Ka-band) | UG-599/UPC | Bolt Circle: 0.600" (15.2 mm) | 5G, radar yamagalimoto |
| | **WR-15** | 50–75 GHz (V-gulu) | UG-387Mini/UPC | Kuzungulira kwa Bolt: 0.400" (10.2 mm) | mmWave, kafukufuku |
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### **Miyezo ya Flange (Yodziwika)**
1. **Bolt Circle Diameter (BCD)**: Diameter ya bwalo lopangidwa ndi malo a ma bolts okwera.
2. **Kutalikirana kwa Mabowo**: Mtunda pakati pa mabowo a bawuti (monga mabowo 4 kapena mabowo 8).
3. ** Kabowo ka Waveguide **: Kufanana ndi miyeso yamkati ya waveguide.
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### **Maubwenzi Ofunika Kwambiri**
1. **Kukula kwa Waveguide ↔ Kukula kwa Flange **:
- Mafunde akuluakulu (mafunde otsika) amagwiritsa ntchito ma flange akuluakulu (mwachitsanzo, WR-112 flange> WR-90 flange).
- Mafunde ang'onoang'ono (maulendo apamwamba) amagwiritsa ntchito ma flanges ophatikizika (mwachitsanzo, WR-28, WR-15).
2. **Kugwirizana kwa Flange**:
- Flanges ayenera kufanana ** makina ** (mabowo kuyanjanitsa, BCD) ndi **magetsi ** (impedance kupitiriza).
- Kusakaniza mitundu ya flange (mwachitsanzo, UG-387 ndi CPR-137) kumafuna ma adapter.
3. **Miyezo ndi Dera**:
**MIL-STD (UG/UPC)**: Yodziwika m'makina achitetezo aku US.
- **IEC/CPR**: Yodziwika m'machitidwe azamalonda aku Europe.
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### **Chitsanzo Miyezo ya Flange**
| | **Mtundu wa Flange** | **Kugwirizana kwa Waveguide ** | **Njira Zofunika Kwambiri** |
|------------------------------------------------------------------------------------------------------------------------------------------------
| | **UG-387/UPC** | WR-90, WR-62, WR-42 | 4-hole, MIL-STD-392, yogwiritsidwa ntchito kwambiri. | |
| | **UG-599/UPC** | WR-28, WR-15 | Compact, ya machitidwe a mmWave. | |
| | **CPR-137** | WR-112, WR-90 | European standard, 8-hole pattern. | |
| | **Choke Flange** | Zonse | Mapangidwe opangidwa kuti achepetse kutayikira. | |
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### **Zolemba**
- Tsimikizirani nthawi zonse **zojambula zamakina** zochokera kwa opanga kuti zikhale zenizeni.
- Ma flange osagwirizana amayambitsa **kulephera kupitilira **, zomwe zimatsogolera ku kuwonongeka kwa VSWR.
- Pamakina a vacuum, gwiritsani ntchito **O-ring yosindikizidwa zophimba zophimba **.
Ndidziwitseni ngati mukufuna kuphatikiza kwa waveguide-flange!
Nthawi yotumiza: Feb-22-2025