Waveguide chaw nres nkoj - flange loj sib piv lub rooj

Kev sib raug zoo ntawm **waveguide chaw nres nkoj qhov ntev**, ** flange qhov ntau thiab tsawg**, thiab **frequency bands** yog standardized los xyuas kom meej txhua yam compatibility thiab pom RF kev ua tau zoo. Hauv qab no yog cov lus sib piv yooj yim thiab cov ntsiab lus tseem ceeb rau cov kab sib txuas sib txuas thiab lawv cov flanges cuam tshuam.

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### ** Cov Ntsiab Lus Tseem Ceeb **
1. **Waveguide Designation**:
Waveguides tau sau nrog "WR" (Waveguide Rectangular) ua raws li tus lej (xws li WR-90). Tus lej kwv yees qhov ** sab hauv dav-phab ntsa qhov ntev ** hauv pua pua ntawm ib nti (piv txwv li, WR-90 ≈ 0.90" sab hauv dav).
- Piv txwv: WR-90 = 0.9 "(22.86 mm) sab hauv dav.

2. **Flange Hom**:
Flanges standardize kev sib txuas ntawm waveguides. Cov hom muaj xws li:
- **UG/UPC** (MIL-STD): Standardized tub rog flange (eg, UG-387/UPC).
- ** CPR ** (Kev Lag Luam): Cov qauv European (piv txwv li, CPR-137).
- ** Choke Flanges **: Rau qhov tsis tshua muaj hluav taws xob, kev siv hluav taws xob siab.
- ** Npog Flanges **: Yooj yim, siv rau lub tshuab nqus tsev sealing.

3. **Frequency Bands**:
Txhua lub waveguide txhawb nqa qhov ntau zaus raws li nws qhov ntev.

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### **Waveguide-to-Flange Sib Piv Table**
| **Waveguide** | **Frequency Range** | **Flange Hom** | **Flange Dimensions (Hom)** | ** Daim ntawv thov ** |
| ------------ |------------- |------------------------------ |---------------- |
| **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, tub rog systems |
| **WR-42** | 18–26.5 GHz (K-band) | UG-383/UPC | Bolt Circle: 0.800" (20.3 hli) | High-frequency radar |
| **WR-28** | 26.5–40 GHz (Ka-band) | UG-599/UPC | Bolt Circle: 0.600 "(15.2 mm) | 5G, tsheb radar |
| **WR-15** | 50–75 GHz (V-band) | UG-387Mini/UPC | Bolt Circle: 0.400" (10.2 hli) | mmWave, tshawb fawb |

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### **Flange Dimensions (Tswj)**
1. ** Bolt Circle Diameter (BCD)**: Txoj kab uas hla ntawm lub voj voog tsim los ntawm cov chaw nruab nrab ntawm cov mounting bolts.
2. ** Qhov Qhov Ncauj **: Qhov nrug ntawm qhov ntsia hlau qhov (piv txwv li, 4-qhov lossis 8-qhov qauv).
3. **Waveguide Aperture**: Sib phim lub waveguide sab hauv qhov ntev.

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### **Txoj kev sib raug zoo**
1. **Waveguide Size ↔ Flange Loj**:
- Cov waveguide loj dua (qis dua) siv flanges loj dua (piv txwv li, WR-112 flange> WR-90 flange).
- Cov waveguides me me (ntau zaus dua) siv cov flanges compact (piv txwv li, WR-28, WR-15).

2. **Flange Compatibility**:
- Flanges yuav tsum phim ** mechanically ** (lub qhov sib dhos, BCD) thiab ** hluav taws xob ** (impedance txuas ntxiv).
- Kev sib xyaw flange hom (piv txwv li, UG-387 nrog CPR-137) xav tau cov adapters.

3. **Standards by Region**:
- **MIL-STD (UG/UPC)**: Feem ntau hauv Teb Chaws Asmeskas kev tiv thaiv kab ke.
- **IEC/CPR**: Feem ntau hauv European lag luam systems.

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### **Piv txwv Flange Standards**
| **Flange Hom** | **Waveguide Compatibility** | **Qhov tseem ceeb ** |
|------------------------------------------------------------------------------------------------------------------------------------------------|
| **UG-387/UPC** | WR-90, WR-62, WR-42 | 4-qhov, MIL-STD-392, dav siv. |
| **UG-599/UPC** | WR-28, WR-15 | Compact, rau mmWave systems. |
| **CPR-137** | WR-112, WR-90 | European txheem, 8-qhov qauv. |
| **Choke Flange** | Txhua tus | Grooved tsim kom txo cov to. |

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### **Notes**
- Ib txwm txheeb xyuas ** cov duab kos duab ** los ntawm cov tuam txhab rau qhov ntev.
- Cov flanges tsis sib haum ua rau ** impedance discontinuities **, ua rau VSWR degradation.
- Rau lub tshuab nqus tsev, siv ** O-ring kaw flanges **.

Qhia rau kuv paub yog tias koj xav tau ib qho tshwj xeeb waveguide-flange ua ke!