TFCalc 2.9 Changes

TFCalc 2.9.6

• Needle Optimization Improvements. This version makes a number improvements to the needle optimization method. It also ships with 6 sample designs which demonstrate the power and versatility of the needle method.

TFCalc 2.9

• Needle Optimization. This powerful optimization method makes the design of coatings almost automatic; just specify the optimization targets and the materials with which you want to manufacture the coating, and the method adds layers until it finds an optimal design. The needle method is especially useful for designs that have unusual requirements. For example, the dual-band bandpass filter shown below was designed automatically in about an hour (on a 66MHz 80486 DX2) — starting from a one-layer design!