These measurement-based models, available for selected lnmet Brand PowerFilm™ devices, are for use with microstrip applications. The models account for printed circuit board related parasitic effects and are substrate scalable, in that substrate height, dielectric constant, loss tangent, and solder pad terminal dimensions are input parameters. Each attenuator series model is dB value scalable and the resistor models are available for a variety of ohm values.
Each model includes complete documentation detailing the test fixtures used, measurement conditions, range of validity, and model-to-measurement data comparisons.
Scattering parameters of APITech Inmet Brand TCAF N05 series of temperature variable attenuators. All testing performed on a 30 mil thick Rogers RO4350B microstrip board, with the attenuator circuit facing up.
Attenuator Values 2, 3, 4, 5, 6 dB
Scattering parameters of APITech Inmet Brand PCA and PCAF series of chip attenuators. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the attenuator circuit facing up (PCAF) adn facing down (PCA).
Attenuator Values 1, 2, 3, 4, 5, 6, 10, 20 dB
(Full input/output and ground terminal wraps)
Scattering parameters of APITech Inmet Brand PCA and PCAF series of chip attenuators. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the attenuator circuit facing up (PCAF) adn facing down (PCA).
Attenuator Values 1, 2, 3, 4, 5, 6, 10, 20 dB
Scattering parameters of APITech Inmet Brand PCAA and PCAAF series of chip attenuators. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the attenuator circuit facing up (PCAAF) and facing down (PCAA).
Attenuator Values 1, 2, 3, 4, 5, 6, 10, 20 dB
(Full input/output and ground terminal wraps)
Scattering parameters of APITech Inmet Brand PCAA and PCAAF series of chip attenuators. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the attenuator circuit facing up (PCAAF) and facing down (PCAA).
Attenuator Values 1, 2, 3, 4, 5, 6, 10, 20 dB
Scattering parameters of Inmet ANC series (50 x 50 mils) chip resistor. All testing performed on a 20 mil thick Rogers RO4003 microstrip board, with the resistor facing up.
Resistor Value: 50 ohms
Scattering parameters of Inmet ANC series (50 x 50 mils) chip resistor. All testing performed on a 20 mil thick Rogers RO4003 microstrip board, with the resistor facing up.
Resistor Value: 50 ohms
Scattering parameters of Inmet NPC series (20 x 40 mils) chip resistors. All testing performed on a 20 mil thick Rogers RO4003 microstrip board, with the resistor facing down.
Resistor Value: 50 ohms
Scattering parameters of Inmet NPC series (50 x 50 mils) chip resistors. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the resistor facing up.
Resistor Value: 50 ohms
Scattering parameters of Inmet NPC series (50 x 100 mils) chip resistors. All testing performed by Modelithics, Inc. on a 20 mil thick Rogers R04003 microstrip board, with the resistor facing up.
Resistor Value: 50 ohms
Scattering parameters of Inmet PPC series (100 x 200 mils) chip resistors. All testing performed on a 20 mil thick Rogers RO4003 microstrip board, with the resistor facing up.
Resistor Value: 50 ohms