Enhanced FD-TD equations for diagonal metal edges and their microwave applications

Seyed Mahmoudreza Foroughipour, K. P. Esselle

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


    The standard FD-TD method requires a very fine grid to model singular fields in the vicinity of sharp metal edges. This is a problem for simulating microwave structures composed of thin metal sheets, such as planar transmission lines and patch antennas. We have derived improved (enhanced) FD-TD equations for diagonal metal edges by considering field singularity. With these equations, various microwave structures can be analyzed accurately using a much coarser grid. In this paper, we demonstrate the application of enhanced FD-TD equations in (1) modeling wave propagation in diagonal microstrip lines, (2) simulating resonance in microstrip patch antennas. The accuracy of numerical results was improved by a factor of between 4 to 10, without additional computational overhead (time or memory).

    Original languageEnglish
    Title of host publicationAsia-Pacific Microwave Conference Proceedings, APMC
    EditorsAndrew Parfitt
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Number of pages2
    Publication statusPublished - 2000
    Event12 Asia-Pacific Microwave Conference - Sydney, Australia
    Duration: 3 Dec 20006 Dec 2000


    Other12 Asia-Pacific Microwave Conference
    CitySydney, Australia


    Dive into the research topics of 'Enhanced FD-TD equations for diagonal metal edges and their microwave applications'. Together they form a unique fingerprint.

    Cite this