X3C09E2-20S【PDF 19/22 页】COUPLER 90DEG 800-1000MHZ 20DB

您好，
买卖IC网欢迎您。
请登录
免费注册

15页 16页 17页 18页 [19页]20页 21页 22页

Model X3C09E2-20

Rev A

Application Information

Directional Couplers and Sampling

Directional couplers are often used in circuits that require the sampling of an arbitrary signal. Because they are

passive, non-linear devices, Anaren directional couplers do not perturb the characteristics of the signal to be sampled,

and can be used for frequency monitoring and/or measurement of RF power. An example of a sampling circuit is the

reflectometer. The purpose of the reflectometer is to isolate and sample the incident and reflected signals from a

mismatched load. A basic reflectometer circuit is shown in Figure ap.n.1-1.

V input

V I

4

1

2

3

V R

Reflected

Wave

LOAD

Figure ap.n.1-1. A Reflectometer Circuit Schematic

If the directional coupler has perfect directivity, then it is clear that V I is strictly a sample of the incident voltage V input ,

and V R is strictly a sample of the wave that is reflected from the load. Since directivity is never perfect in practice, both

V I and V R will contain samples of the input signal as well as the reflected signal. In that case,

V I = C + CDT Γ e j θ Eq. ap.n.1-1

and

V R = CD + CT Γ e j φ Eq. ap.n.1-2

where C is the coupling, D is the directivity, Γ is the complex reflection coefficient of the load, T is the transmission

coefficient, and φ and θ are unknown phase delay differences caused by the interconnect lines on the test board. If we

know V I and V R , we can easily calculate the reflection coefficient of the load. One should notice that in order to make

forward and reverse measurements using only one coupler, the directivity must be really low. In specific customer

applications, the preferred method for forward and reverse sampling is shown in Figure ap.n.1-2.

Available on Tape

and Reel for Pick and

Place Manufacturing.

USA/Canada:

Toll Free:

Europe :

(315) 432-8909

(800) 411-6596

+44 2392-232392

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

我的联系方式

*

*

*

相关PDF资料

X3C09P1-03S COUPLER 90DEG 800-1000MHZ 3DB

X3C09P2-03S COUPLER 90DEG 800-1000MHZ 3DB

X3C09P2-30S COUPLER 90DEG 800-1000MHZ 30DB

X3C19E2-20S COUPLER 90DEG 1700-2000MHZ 20DB

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

相关代理商/技术参数

X3C09E2-20S-CT 制造商:Anaren Microwave 功能描述:RF DIRECTIONAL COUPLER

X3C09F1-03SR 制造商:Anaren Microwave 功能描述:RF HYBRID COUPLER

X3C09F1-03S-R5 制造商:Anaren Microwave 功能描述:RF HYBRID COUPLER

X3C09F1-20S 功能描述:COUPLER DIRECT 700-1000MHZ 20DB 制造商:anaren 系列:Xinger III? 包装:剪切带（CT）零件状态:在售耦合器类型:标准频率:700MHz ~ 1GHz 耦合系数:20dB 应用:通用插入损耗:0.075dB 功率 - 最大值:25W 隔离:- 回波损耗:- 封装/外壳:4-SMD，无引线供应商器件封装:- 标准包装:1

X3C09P1-03S 功能描述:信号调节 800-1000MHz IL:.22dB VSWR:1.15 -55 to 95C RoHS:否制造商:EPCOS 产品:Duplexers 频率:782 MHz, 751 MHz 频率范围: 电压额定值: 带宽: 阻抗:50 Ohms 端接类型:SMD/SMT 封装 / 箱体:2.5 mm x 2 mm 工作温度范围:- 30 C to + 85 C 封装:Reel

X3C09P1-03S-CT 制造商:Anaren Microwave 功能描述:RF HYBRID COUPLER

X3C09P1-03SR 制造商:Anaren Microwave 功能描述:HYBRID COUPLER 3DB 90 DEGREE 800-1000MHZ

X3C09P1-03S-R 制造商:Anaren Microwave 功能描述:RF HYBRID COUPLER