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SAW_Filter (Saw Filter)

Symbol

Available in ADS and RFDE

Parameters

Name

Description

Units

Default

Fcenter

Stopband center frequency

MHz

300

IL

Passband insertion loss

dB

15

BWpass

Passband edge-to-edge width

MHz

50

Apass

Attenuation at passband edges

dB

1

BWstop

Stopband edge-to-edge width

MHz

70

Astop

Attenuation at stopband edges

dB

40

GDelay

Group delay

sec

0.4

Aripple

Passband amplitude ripple

dB

0.5

PhaRipple

Passband phase ripple from linear phase

deg

None

MaxRej

Maximum rejection level

dB

Zin

Input impedance

Ohm

50

Zout

Output impedance

Ohm

50

WindowType

Window type applied to impulse response: 0=None, 1=Hann, 2=Hamming

None

0

Temp

Temperature

°C

None

Other

Output string to netlist

None

None

Range of Usage

BWstop ≥ BWpass
GDelay ≥ π/BWstop

Notes/Equations
  1. SAW_Filter models the typical behavior of SAW bandpass filters. If the PhaRipple parameter is not specified, the filter will have perfect linear phase.
  2. To maintain causality, Gdelay must be set to at least π/BWstop.
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