capacitance calculation(repost)

The task is to calculate capacitance between two parallel rectangular conductors on top of an infinite ground plane insulated with a dielectric middle layer. The two parallel rectangular conductors both have width W, length L, and thickness T. The gap between the two is G. (Equivalently the center-to-center distance between the two is C = G + W). The middle diacritic insulation layer has depth D and diacritic constant E which is 1 for air and larger for anything else. Please calculate the capacitance between the two parallel rectangular conductors. I need detailed explanation and I want to fully understand it. ------------- This is a real world question. The real setting is: two PCB traces running in parallel on one side and a ground plane on the other side with normal PCB material as the diacritic insulation layer. Furthermore, you can find the solution from book: **apacitance, Inductance and Crosstalk Analysis** <[login to view URL]> The formulae are on pages 48-65 (formulae C4-7). <http://www.amazon.com/gp/reader/0890063923/ref=sib_rdr_toc/103-9213341-3827000?%5Fencoding=UTF8&p=S008#reader-link> Unfortunately I don't have the book and I do not understand a brief quote about that from another book: Capacitive Sensors. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). * * *This broadcast message was sent to all bidders on Monday Mar 28, 2005 2:03:29 PM: Hi All, The book charpters I mentioned is available at [login to view URL] I need you to either prove the book wrong or come up with the same formulea. Some additional reference: [login to view URL] Regards, ## Platform pen and paper