Novel analytical procedures for folded strip dipole antennas

S. Keyrouz, H.J. Visser, R.J.M. Vullers, A.G. Tijhuis

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

5 Citations (Scopus)


A new analysis method is described in this paper to accurately calculate the input impedance of a folded strip dipole antenna. Previous analytical procedures use a quasi-static approach to analytically predict the input impedance of an equivalent cylindrical folded dipole. The new design procedure takes advantage of new analytical equations for strip dipoles, and consequently does not need the equivalence between a rectangular and a circular cross section dipole antenna, which improves the accuracy of the analytical equations. In addition, a correction factor to the coplanar strip (CPS) transmission line length is presented to allow a wider separation between the strips of the folded dipole. Two examples are given to validate the accuracy of the newly proposed analytical procedure. The results of the analytical equations are compared with the results obtained by the electromagnetic simulation software CST Microwave Studio MWS®. The deviations between Analytical Equations (AE) and the Finite Integration Technique (FIT) do not exceed -11 dB (reflection), which makes this method 3.5 dB more accurate than the most recent reported analytical techniques (-7.5 dB). In addition, the newly proposed solution can be extended to analytically characterize different kind of antennas such as the log periodic, Yagi-Uda and folded dipole array antenna.
Original languageEnglish
Title of host publicationProceedings of the 6th European Conference on Antennas and Propagation (EUCAP2012), 26-30 March 2012, Prague, Czech Republic
Publication statusPublished - 2012
Event6th European Conference on Antennas and Propagation (EuCAP 2012) - Prague, Czech Republic
Duration: 26 Mar 201230 Mar 2012
Conference number: 6


Conference6th European Conference on Antennas and Propagation (EuCAP 2012)
Abbreviated titleEuCAP 2012
Country/TerritoryCzech Republic
Internet address


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