[仿真]Frequency Domain Analysis of RF and Microwave Circuits Using SPICE

Abstruct- The SPICE circuit analysis program has limited xRZ9.
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math capability and, in general, cannot be used for RF and /mELnJ^  
microwave simulation because complex arithmetic is required to yFfa/d  
compute S-parameters from node voltages. This paper presents
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two models of a directional coupler that can be used to obtain ~b}@*fq  
node voltages proportional to incident, reflected, and transmitted XwlAW7lU=  
signals. These models are based on a previously developed ]6wo]nV[P  
multiple coupled transmission line (MTL) SPICE model. From qPgLSZv  
SPICE computed node voltages, S-parameters are computed &"bcI7uGT  
using the math capability of the PSPICE post processor, PROBE, e}qG_*  
as an example for a low-pass filter consisting of transmission line 'B;aXy/JC  
sections. The results of this example are compared with another '\[o>n2  
high-frequency circuit analysis program, TOUCHSTONE. The oH/6  
difference between the results of these two programs in magnitude !P*1^8b`f  
was less than 0.005 and in phase was a few tenths of a degree. 'jv[Gcss3L  
By using these couplers to simulate a network analyzer, RF and -7_`6U2"  
microwave analysis can be made with SP .. qMD!No  
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好东西，不客气收藏啊

shoucang le

好东西，不客气收藏啊

不知道是什么东东？下了看看。。