VSWR, toe foi mai le leiloa (rl), manatunatuga o le mana, ma le suia o le mana

O le mafutaga i le va o voltage tu i luga o le fua faatatau (vswr), toe foi mai le leiloa (rl), manatunatuga, ma le faʻatulagaina o le mana e ala i le faʻafefeteina atoatoa (). Lalo o ki autu ma laasaga mo le liuaina:

### ** Core Beaclas **
1. ** Tofaga o le lelei (γ) **:

\ Gamma = \ frac {\ tusitusiga {vswr} - 1} {} {} + 1}

2. ** vswr ** mai γ:

\ Tusitusiga {vswr} = \ Frac {1 + | \ Gamma |} {1 - | \ gamma |}

3. ** toe faafoi le leiloa (rl) ** i le DB:

\ Tusitusiga {RL (DB)} = -20 {10} (| \ Gamma |)

4. ** Tofa o le Mana (%) **:

P _ {\ Tusitusiga {ref}} = | \ Gamma | \ 2 \ taimi 100 \%

5. ** auina atu le mana (%) **:

P _ {\ Tusitusiga {Trans} = \ agavale (1 - | \ Gamma | \ - \ taumatau) \ taimi

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### ** Suia Laasaga **
#### ** 1. Amata i le VSWR **:
- fuafua γ:

\ Gamma = \ frac {\ tusitusiga {vswr} - 1} {} {} + 1}

- Faaaoga γ e suʻe Rl, manatunatuʻaga mana, ma le faʻaseʻeina o le mana e faʻaaoga ai faʻamatalaga i luga.

#### ** 2. Amataina i le toe foi mai le leiloa (RL i le DB) **:
- fuafua γ:

| Ruma | = 10 ^ {- \ tusitusiga {rl} / 20}

Faaaoga ΓʻI Γ Ia Saili mai VSWR, mafaufau loloto, ma le faʻatauvaʻa.

#### ** 3. Amataina ma le atagia mai / lafoina le mana **:
- mo ** atagia le mana ** (\ (p _ {\ tusitusiga {rell}} \)):

| Ruma | = \ sqrt {\ frac {p _ _ \ tusitusiga {ref}}}} {100}

- mo ** lafoina le mana ** (\ (p _ {\ tusitusiga {ty}}} \)):

| Ruma | = \ sqrt {1 - \ frac {p _ {\ tusitusiga}}}} {100}

- Faaaoga γ e faʻaputu ai VSWR ma RL.

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### ** Faʻataʻitaʻiga laulau **
| ** VSWR ** | ** Toe foi leiloa (DB) ** | ** FAAALIGA MAX (%) ** | ** Storated Mana (%) ** |
|----------|----------------------|-------------------------|---------------------------|
| 1.0 | ∞ (fetaui lelei) | 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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### ** FAAMATALAGA FAAMATALAGA **
- A ** VSWR o le 1: 1 ** o lona uiga e leai se atagia (γ = 0, rl = ∞).
- ** Tulaga maualuga VSWR ** poʻo ** lalo RL ** faʻailoa atili le malosi.
- ** Faʻasalalau le paoa ** o loʻo faʻateleina pe a le VSWR ≈ 1.

Faʻaaoga nei faʻamatalaga e faʻalavelave ai i le va o tapulaʻa mo le faʻaaogaina o le fetaui i le RF polokalame.