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Pad (Pi or Tee Format)

Symbol

Available in ADS

Parameters

Name

Description

Units

Default

NetType

Network type: Pi or Tee

None

Pi

Loss

Attenuation

dB

0

R1

Reference resistance for port 1

Ohm

50

R2

Reference resistance for port 2

Ohm

50

Temp

Temperature

°C

None

CheckPassivity

Check passivity flag: if set to yes, a passivity check is performed and a warning is output if the device is not passive; if set to no, a passivity check is not performed.

None

yes

Range of Usage

R1 > 0
R2 > 0

Notes/Equations
  1. This 2-port component provides a:
    • Match to resistance R1 at port 1 when port 2 is terminated in R2
    • Match to R2 at port 2 when port 1 is terminated in R1
    • Desired attenuation, DB
  2. Resistive networks can achieve simultaneous match at input and output if the insertion loss factor A exceeds a minimum value given by


    where:
    DBMIN = 10 × log10(AMIN)
  3. The values shown in the Pi network equivalent circuit are given by:

The values shown in the Tee network circuits are given by

Equivalent Circuit

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