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Ansoft Designer / Ansys Designer 在线帮助文档：

Nexxim Simulator >
Nexxim Component Models >
Nexxim Filters >
   Root Raised Cosine Band Pass Filter       

Root Raised Cosine Band Pass Filter

 

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Netlist Syntax

An instance of a root raised cosine band pass filter has the following Nexxim netlist syntax:

Axxx n1 n2 [FL=val] [FU=val] [E=val] [B=val] [R1=val] [R2=val] [IL=val] COMPONENT=root_raised_cosine_band_pass_filter

n1 and n2 are the nodes connected to the filter. The entry COMPONENT=root_raised_cosine_band_pass_filter is required.


Root Raised Cosine Band Pass Filter Instance Parameters

Parameter

Description

Units

Default

FL

Lower cutoff frequency

Hz

1e9

FU

Upper cutoff frequency

Hz

2e9

E

Exponential parameter

None

0.5

B

Rolloff factor

None

0.25

R1

Reference resistance for node 1

Ohm

50

R2

Reference resistance for node 2

Ohm

50

IL

Insertion loss

dB

0

Netlist Example

A22 1 2 FL=80e6 FU=100e6 E=0.5 B=0.25 R1=50 R2=50 IL=0
+ COMPONENT=root_raised_cosine_band_pass_filter

Note

1. The impulse response of a root raised cosine filter convolved with itself is approximately equal to the impulse response of a raised cosine filter.



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