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XC0900A-20 参数 Datasheet PDF下载

XC0900A-20图片预览
型号: XC0900A-20
PDF下载: 下载PDF文件 查看货源
内容描述: 20分贝定向耦合器 [20 dB Directional Coupler]
分类和应用:
文件页数/大小: 23 页 / 576 K
品牌: ANAREN [ ANAREN MICROWAVE ]
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Model XC0900A-20  
Rev F  
Power Handling  
The average power handling (total input power) of a Xinger coupler is a function of:  
Internal circuit temperature.  
Unit mounting interface temperature.  
Unit thermal resistance  
Power dissipated within the unit.  
All thermal calculations are based on the following assumptions:  
The unit has reached a steady state operating condition.  
Maximum mounting interface temperature is 95oC.  
Conduction Heat Transfer through the mounting interface.  
No Convection Heat Transfer.  
No Radiation Heat Transfer.  
The material properties are constant over the operating temperature range.  
Finite element simulations are made for each unit. The simulation results are used to calculate the unit thermal  
resistance. The finite element simulation requires the following inputs:  
Unit material stack-up.  
Material properties.  
Circuit geometry.  
Mounting interface temperature.  
Thermal load (dissipated power).  
The classical definition for dissipated power is temperature delta (ΔT) divided by thermal resistance (R). The  
dissipated power (Pdis) can also be calculated as a function of the total input power (Pin) and the thermal insertion loss  
(ILtherm):  
ILtherm  
10  
ΔT  
R
P =  
= P 110  
(W )  
dis  
in  
(1)  
Power flow and nomenclature for an “H” style coupler is shown in Figure 1.  
USA/Canada:  
Toll Free:  
Europe:  
(315) 432-8909  
(800) 411-6596  
+44 2392-232392  
Available on Tape and  
Reel for Pick and Place  
Manufacturing.