Giving a Little Thought to How We Think
High Frequency Electronics
A characteristic of many wideband antenna structures is complex geometry, necessary to create current paths at the various frequencies that result in the desired feedpoint impedance and radiation pattern. At first reading, Dr. Boryssenko’s paper offers an interesting way to group families of antenna structures by identifying the features that make the family members similar. To do this, he borrows a technique from the biological sciences:taxonomy (or classification), the creation of groups. These groups are defined by certain similarities, such as straight line boundaries, curved line boundaries, linear structure, loop structure, etc. Another technique is the use of an identifying mechanism by which one family member is changed into another. The simplest are alterations in length, width or thickness. More complicated means include linear displacement or rotation to define a three-dimensional structure. These adaptive processes are identified by examination, analysis, and experience, and are called heuristic (or knowledge-based) rules. They provide a list of processes for manipulating the structures within the families, not only to analyze existing structures, but to generate new structures as well.
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