VSWR, ipadanu ipadabọ (RL), agbara afihan, ati agbara gbigbe

Awọn ibatan laarin Voltage Standing Wave Ratio (VSWR), ipadanu ipadabọ (RL), agbara afihan, ati agbara ti o tan kaakiri jẹ asopọ laarin onisọdipúpọ (Γ). Ni isalẹ wa awọn agbekalẹ bọtini ati awọn igbesẹ fun iyipada:

### ** Awọn agbekalẹ mojuto**
1. **Isọdipúpọ Iṣirotẹlẹ (Γ) ***:

\Gamma = \ frac {\ọrọ {VSWR} - 1}{\ọrọ {VSWR} + 1}

2. **VSWR** lati Γ:

\text{VSWR} = \frac{1 + |\Gamma|}{1 - |\Gamma|}

3. ** Ipadabọ Pada (RL)** ni dB:

\text{RL (dB)} = -20 \log_{10}(|\Gamma|)

4. **Agbara Reflected (%) ***:

P_{\text{refl}} = |\Gamma|^2 \igba 100\%

5. **Agbara Gbigbe (%) ***:

P_{\text{trans}} = \osi(1 - |\Gamma|^2\atun) \igba 100\%

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### ** Awọn Igbesẹ Iyipada **
#### **1. Bibẹrẹ pẹlu VSWR ***:
- Ṣe iṣiro Γ:

\Gamma = \ frac {\ọrọ {VSWR} - 1}{\ọrọ {VSWR} + 1}

- Lo Γ lati wa RL, agbara afihan, ati agbara gbigbe ni lilo awọn agbekalẹ loke.

#### **2. Bibẹrẹ pẹlu Ipadabọ Ipadabọ (RL ni dB) ***:
- Ṣe iṣiro Γ:

|\Gamma| = 10^{-\ọrọ{RL}/20}

- Lo Γ lati wa VSWR, agbara afihan, ati agbara gbigbe.

#### **3. Bibẹrẹ pẹlu Agbara Afihan/Ti a gbejade ***:
Fun **agbara afihan** (\(P_{\ọrọ{refl}}\)):

|\Gamma| = \sqrt{\frac{P_{\text{refl}}}{100}}

Fun ** agbara gbigbe ** (P_{\ ọrọ {trans}} \)):

|\Gamma| = \sqrt{1 - \frac{P_{\text{trans}}}{100}}

- Lo Γ lati ṣe iṣiro VSWR ati RL.

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### **Tabili Apẹẹrẹ**
| **VSWR** | ** Ipadanu Pada (dB)** | ** Agbara afihan (%) *** | ** Agbara Gbigbe (%) *** |
|------------------|--------------|---------------------------|
| 1.0 | ∞ (Pipe baramu) | 0% | 100% |
| 1.5 | 14,0 dB | 4% | 96% |
| 2.0 | 9,5 dB | 11,1% | 88,9% |
| 3.0 | 6,0 dB | 25% | 75% |

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### ** Awọn akọsilẹ bọtini**
- A **VSWR ti 1: 1** tumo si ko si irisi (Γ = 0, RL = ∞).
- ** VSWR ti o ga julọ *** tabi ** RL kekere tọkasi agbara afihan diẹ sii.
- ** Agbara gbigbe ** jẹ iwọn nigbati VSWR ≈ 1.

Lo awọn agbekalẹ wọnyi lati ṣe iyipada laarin awọn paramita fun ibaamu impedance ni awọn eto RF.