2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

IEEE Transactions on Microwave Theory and Techniques
Volume 48 Number 1, January 2000

Table of Contents for this issue

Complete paper in PDF format

Theoretical and Experimental Study of Various Types of Compensated Dielectric Bridges for Millimeter-Wave Coplanar Applications

Eric Rius, Jean Philippe Coupez , Serge Toutain, Christian Person and Pierre Legaud

Page 152.

Abstract:

This paper describes a new approach for the integration of dielectric bridges in microwave-integrated-circuit uniplanar technology. Taking into account the electrical influence of these elements on a coplanar waveguide, a simple way to compensate these parasitic effects is presented. It consists of locally tuning the dimensions of both the bridges and associated compensation lines. Theoretical and experimental results on coplanar waveguides and T-junctions are given up to the millimeter frequency range. Finally, to validate the proposed technique, a bandpass filter including compensated dielectric bridges is implemented.

References

  1. M. Houdart, "Coplanar lines: Application to broadband microwave integrated circuits", in 7th EuMC Dig., Prague, Czech Republic,1976, pp.  49- 53. 
  2. P. Barnwell and G. Shorthouse, "High performance material technologies for advanced circuit assemblies and MCMs", Microelectron. Int. J. ISHM Europe, no.  38, pp.  28- 31, Sept.  1995.
  3. M. Naghed and I. Wolff, "Equivalent capacitances of coplanar waveguide discontinuities and interdigited capacitors using a three-dimensional finite difference method", IEEE Trans. Microwave Theory Tech., vol. 38 , pp.  1808- 1815, Dec.  1990.
  4. L. Stephan, J. P. Coupez, E. Rius, C. Person and S. Toutain, "Integration of various types of compensated dielectric bridges for mm coplanar applications", in IEEE MTT-S Int. Microwave Symp. Dig., San Francisco, CA, 1996, pp.  83- 86. 
  5. G. L. Matthaei, L. Young and E. M. T. Jones, Microwave Filters, Impedance-Matching Networks and Coupling Structures, Norwood, MA : Artech House, 1980, sec. 10.03, pp. 595-605.