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Controlled Impedance
Types
- Surface microstrip
- Embedded microstrip
- Coated microstrip
- Symmetrical stripline
- Offset stripline
Impedance Tolerance = 10%
Design Criteria
When calculating impedance, the dielectric constant (ER) value will vary after bonding from that published by the material manufacturer. Also it is essential to ensure that gaps between tracks are large enough for track width changes to allow for etch back. Please call our technical department for information, calculations and builds for controlled impedance circuits.
Testing a Controlled Impedance Coupon
