Design Articles

Compact Router Speeds Prototype PCB Development
A portable, but rugged, circuit board router can turn a copper-clad laminate into a working circuit in less than 15 minutes.

A 2.6 GHz Microstrip Hairpin Filter Design Using CAD and EDA Tools
Design software and mechanical prototyping combine to create a practical filter.

The Design, Fabrication and Measurement of Microstrip Filter and Coupler Circuits
These practical microstrip examples provide a valuable tutorial on the use of many different engineering resources: published references, comprehensive EDA tools, EM analysis and rapid prototyping equipment.

Design and Prototyping of a Transimpedance Front-End Amplifier for Dense Wavelength Division Multiplexing (DWDM) Circuits
As part of the development of an optical power monitor for use in Dense Wavelength Division Multiplexing (DWDM) circuits, the effectiveness of a logarithmic OPAMP transimpedance front-end amplifier was investigated...

Automated Process Cuts Filter Tuning Time From Hours to Minutes
Fast, efficient tuning of S-, C-, and X-band filters reduces production time and cost for Army missile systems.