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| 型号： | X3C19E2-20S |
| 厂商： | Anaren |
| 文件页数： | 20/22页 |
| 文件大小： | 0K |
| 描述： | COUPLER 90DEG 1700-2000MHZ 20DB |
| 标准包装： | 1 |
| 系列： | Xinger III® |
| 耦合器类型： | 标准 |
| 频率： | 1.4GHz ~ 2.7GHz |
| 耦合系数： | 20dB |
| 应用： | DCS，PCS，WCDMA |
| 插入损耗： | 0.05dB |
| 功率 - 最大： | 225W |
| 隔离： | * |
| 回程损耗： | 20dB |
| 封装/外壳： | 4-SMD，无引线 |
| 供应商设备封装： | SMD |
| 包装： | 标准包装 |
| 其它名称： | 1173-1108-6 |
Model X3C19E2-20S
REV C
ISOLATOR
INPUT
FORWARD
4
1
2
3
Reflected
Wave
LOAD
MEASUREMENT
*Recommended Terminations
Power (Watts)
Model
8
RFP- 060120A15Z50-2
10
RFP- C10A50Z4
16
RFP- C16A50Z4
20
RFP- C20N50Z4
50
RFP- C50A50Z4
100
RFP- C100N50Z4
200
RFP- C200N50Z4
**TERMINATION
REVERSE
MEASUREMENT
Figure ap.n.1-2. Forward and Reverse Sampling
The isolator in Figure ap.n.1-2 prevents the reflected wave from exciting the directional coupler. A list of recommended
terminations is shown in the figure.
Directional Couplers in Feed-Forward Amplifier Applications
Feed-forward amplifiers are widely used to reduce distortion due to nonlinearities in power amplifiers. Although the
level and complexity of feed-forward amplifiers varies from one manufacturer to another, the basic building block for this
linearization scheme remains the same. A basic feed-forward schematic is shown in Figure ap.n.2-1. The input signal
is split in two using a hybrid coupler or power divider. The output of the main amplifier is sampled with a 20dB-30dB
directional coupler. The X3C19E2-20S is an excellent candidate for this sampling since it provides great return loss and
directivity. The sampled signal, which consists of a sample of the original input signal plus some distortion, is inverted
and then combined with the output of the first delay line. This procedure subtracts (through destructive interference) the
sample of the original input signal, leaving only the distortion or error component. The error component is then
amplified and combined with the output of the second delay line using another directional coupler. In many cases, a
10dB coupler is used to combine the two signals. The XC0900E-10 is a perfect choice for this injection because it has
tight coupling, superior directivity, and excellent match.
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相关PDF资料 |
PDF描述 |
|---|---|
| X3C19P1-03S | COUPLER 90DEG 1700-2000MHZ 3DB |
| X3C19P2-03S | COUPLER 90DEG 1700-2000MHZ 3DB |
| X3C19P2-30S | COUPLER 90DEG 1700-2000MHZ 30DB |
| X3C21P1-03S | COUPLER 90DEG 2000-2300MHZ 3DB |
| X3C21P2-03S | COUPLER 90DEG 2000-2300MHZ 3DB |
相关代理商/技术参数 |
参数描述 |
|---|---|
| X3C19E2-20S-CT | 制造商:Anaren Microwave 功能描述:RF DIRECTIONAL COUPLER |
| X3C19E2-20S-R | 制造商:Anaren Microwave 功能描述:RF DIRECTIONAL COUPLER |
| X3C19F1-03S | 功能描述:COUPLER HYBRID 1700-2300MHZ 制造商:anaren 系列:* 包装:剪切带（CT） 零件状态:在售 封装/外壳:4-SMD，无引线 供应商器件封装:- 标准包装:1 |
| X3C19F1-03S-R | 制造商:Anaren Microwave 功能描述:RF HYBRID COUPLER |
| X3C19F1-03S-R5 | 制造商:Anaren Microwave 功能描述:RF HYBRID COUPLER |
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