Gombe lotsogolera mafunde - tebulo loyerekeza kukula kwa flange

Ubale pakati pa miyeso ya **waveguide port**, **flange size**, ndi **frequency bands** ndi wokhazikika kuti zitsimikizire kuti makina akugwirizana komanso magwiridwe antchito abwino a RF. Pansipa pali tebulo loyerekeza losavuta komanso mfundo zazikulu za ma waveguide ofanana a rectangular ndi ma flange ogwirizana nawo.

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### **Mfundo Zofunika**
1. **Mayina a Waveguide**:
Ma Waveguide amalembedwa ndi "WR" (Waveguide Rectangular) kutsatiridwa ndi nambala (monga, WR-90). Nambalayi imayerekeza kukula kwa khoma lalikulu lamkati** m'magawo zana a inchi (monga, WR-90 ≈ 0.90" m'lifupi mwamkati).
- Chitsanzo: WR-90 = 0.9" (22.86 mm) m'lifupi mwa mkati.

2. **Mitundu ya Flange**:
Ma Flanges amalinganiza kulumikizana pakati pa ma waveguides. Mitundu yodziwika bwino ndi iyi:
- **UG/UPC** (MIL-STD): Gulu lankhondo lokhazikika (mwachitsanzo, UG-387/UPC).
- **CPR** (Zamalonda): Miyezo ya ku Ulaya (monga CPR-137).
- **Ma Flanges a Choke**: Ogwiritsa ntchito mphamvu zambiri komanso osatulutsa madzi ambiri.
- **Ma Flanges Ophimba**: Osavuta, ogwiritsidwa ntchito potseka vacuum.

3. **Ma Band Oyendera Ma Frequency**:
Chitsogozo chilichonse cha mafunde chimathandizira kuchuluka kwa ma frequency kutengera kukula kwake.

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### **Tebulo Loyerekeza la Chitsogozo cha Mafunde kupita ku Flange**
| **Guide ya Mafunde** | **Kuchuluka kwa Ma Frequency** | **Mtundu wa Flange** | **Miyeso ya Flange (Yachizolowezi)** | **Mapulogalamu** |
|---------------|- ...
| **WR-90** | 8.2–12.4 GHz (X-band) | UG-387/UPC (MIL) | Bolt Circle: 1.872" (47.5 mm) | Radar, mauthenga a satellite. |
| **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 ya pafupipafupi 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-band) | UG-387Mini/UPC | Bolt Circle: 0.400" (10.2 mm) | mmWave, kafukufuku |

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### **Miyeso ya Flange (Yachizolowezi)**
1. **Bolt Circle Diameter (BCD)**: M'mimba mwake mwa bwalo lopangidwa ndi pakati pa mabolt omangirira.
2. **Kutalikirana kwa Mabowo**: Mtunda pakati pa mabowo a mabowo (monga, mapatani a mabowo anayi kapena mabowo asanu ndi atatu).
3. **Chitseko cha Waveguide**: Chikugwirizana ndi miyeso yamkati ya waveguide.

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### **Ubale Wofunika**
1. **Kukula kwa Waveguide ↔ Kukula kwa Flange**:
- Ma waveguides akuluakulu (ma frequency otsika) amagwiritsa ntchito ma flange akuluakulu (monga, WR-112 flange > WR-90 flange).
- Ma waveguides ang'onoang'ono (ma frequency apamwamba) amagwiritsa ntchito ma compact flanges (monga, WR-28, WR-15).

2. **Kugwirizana kwa Flange**:
- Ma Flanges ayenera kugwirizana **kachitidwe** (kulinganiza mabowo, BCD) ndi **kamagetsi** (kupitirira kwa impedance).
- Kusakaniza mitundu ya flange (monga UG-387 ndi CPR-137) kumafuna ma adapter.

3. **Miyezo Potengera Chigawo**:
- **MIL-STD (UG/UPC)**: Yodziwika bwino m'machitidwe achitetezo aku US.
- **IEC/CPR**: Yodziwika bwino m'machitidwe amalonda aku Europe.

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### **Miyezo ya Zitsanzo za Flange**
| **Mtundu wa Flange** | **Kugwirizana kwa Waveguide** | **Zinthu Zofunika** |
|------------------|- ...
| **UG-387/UPC** | WR-90, WR-62, WR-42 | Mabowo 4, MIL-STD-392, amagwiritsidwa ntchito kwambiri. |
| **UG-599/UPC** | WR-28, WR-15 | Yaing'ono, ya machitidwe a mmWave. |
| **CPR-137** | WR-112, WR-90 | Muyezo wa ku Ulaya, kapangidwe ka mabowo 8. |
| **Choke Flange** | Zonse | Kapangidwe kokhala ndi mipata kuti kutayike madzi kuchepe. |

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### **Zolemba**
- Nthawi zonse tsimikizirani **zojambula zamakina** kuchokera kwa opanga kuti muwone kukula kwake koyenera.
- Ma flange osalingana amayambitsa **kusokonekera kwa impedance**, zomwe zimapangitsa kuti VSWR iwonongeke.
- Pa makina oyeretsera mpweya, gwiritsani ntchito ma flange ophimba chivundikiro cha **O-ring**.

Mundidziwitse ngati mukufuna kuphatikiza kwa waveguide-flange!