Skip to main content
Log in

A geodesic constant method for computing high-frequency mutual coupling between antennas on general quadric cylinders

Eine geodätische Konstanten-Methode zur Berechnung hochfrequenter wechselseitiger Kopplung zwischen Antennen auf allgemeinen Flächen zweiter Ordnung

  • Published:
Archiv für Elektrotechnik Aims and scope Submit manuscript

Contents

A Geodesic Constant Method (GCM) is outlined which provides a common approach to ray tracing on quadric cylinders in general, and yields all the surface ray-geometric parameters required in the UTD mutual coupling analysis of conformal antenna arrays in the closed form. The approach permits the incorporation of a shaping parameter which permits the modeling of quadric cylindrical surfaces of desired sharpness/flatness with a common set of equations. The mutual admittance between the slots on a general parabolic cylinder is obtained as an illustration of the applicability of the GCM.

Übersicht

Dargelegt wird eine geodätische Konstanten-Methode (GKM), die einen gemeinsamen Zugang zur Strahlverfolgung auf allgemeinen Zylindern zweiter Ordnung bietet. Sie liefert sämtliche strahlengeometrischen oberflächenbezogenen Parameter, die in der Uniformen Geometrischen Beugungstheorie (UTD) für die wechselseitige Kopplungsanalyse konformer Antennenarrays benötigt werden, in geschlossener Form. Der Zugang gestattet die Einbeziehung eines Formparameters, der die Modellierung von Zylinderflächen zweiter Ordnung mit gewünschter Spitzigkeit/Flachheit durch ein und dasselbe Gleichungssystem zuläßt. Die erhaltene wechselseitige Admittanz zwischen Schlitzen auf einem allgemeinen parabolischen Zylinder dient zur Veranschaulichung der Anwendbarkeit der GKM.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Burnside, W. D.; Gilreath, M. C.; Marhefka, R. J.; Yu, C. L.: A study of KC-135 aircraft antenna patterns. IEEE Trans. AP-23 (1975) 309–316

    Google Scholar 

  2. Jha, R. M.; Bokhari, S. A.; Sudhakar, V.; Mahapatra, P.R.: Ray analysis on a class of hybrid cylindrical aircraft wings. Electron. Lett. 24 (1988) 21–22

    Google Scholar 

  3. Steinberg, B. D.; Yadin, E.: Self-cohering an airborne radio camera. IEEE Trans. AES-19 (1983) 483–490

    Google Scholar 

  4. Pathak, P. H.; Wang, N.: Ray analysis of mutual coupling between antennas on a convex surface. IEEE Trans. AP-29 (1981) 911–922

    Google Scholar 

  5. Jha, R. M.; Bokhari, S. A.; Sudhakar, V.; Mahapatra, P. R.: Closed form evaluation of element coupling coefficients in conformal arrays on general quadric cylinders. Proceedings of IEEE AP-S Int. Symp. 1989, San Jose, USA, (1989) 1004–1007

  6. Willmore, T. J.: An Introduction to Differential Geometry. Oxford: Oxford University Press 1959

    Google Scholar 

  7. Jha, R. M.: Surface ray tracing on convex quadrics with applications to mutual coupling between antennas on aerospace bodies. Ph. D. thesis, Indian Institute of Science, Bangalore, India (1988)

    Google Scholar 

  8. Lee, S. W.: A review of GTD calculation of mutual admittance of Slot conformal arrays. Electromagnetics 2 (1982) 85–127

    Google Scholar 

  9. Burnside, W. D.; Wang, N.; Pelton, E. L.: Near-field pattern analysis of airborne antennas. IEEE Trans. AP-28 (1980) 318–327

    Google Scholar 

  10. Jha, R. M.; Bokhari, S. A.; Sudhakar, V.; Mahapatra, P. R.: Closed form surface ray analysis for antennas located on a class of aircraft wings. Proceedings of IEEE AP-S Int. Symp. 1989, San Jose, USA (1989) 356–359

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Jha, R.M., Mahapatra, P.R. A geodesic constant method for computing high-frequency mutual coupling between antennas on general quadric cylinders. Archiv f. Elektrotechnik 75, 231–235 (1992). https://doi.org/10.1007/BF01574327

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01574327

Keywords

Navigation