I have written a couple of papers on a certain topic in network communications. I would like to write my next paper on a different topic, for example something geared toward the electrical engineering side of communications. These topics are normally thought of as different fields of specialization.
One reason I would like to do this is to demonstrate a broad knowledge base on my resume. I am also interested in various topics. Is it at all harmful to write (and perhaps publish) in different tangentially related subjects?