Effects of various suspended mounting schemes on mode characteristics of coupled slotlines considering conductor thickness for wideband MIC applications
- 1 May 1995
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 43 (5) , 1106-1114
- https://doi.org/10.1109/22.382073
Abstract
Propagation characteristics of fundamental and higher-order modes are determined in coupled slotlines with three suspended mounting schemes (pedestal, groove, inverse pedestal) for wideband applications of microwave and millimeter-wave integrated circuits. The analysis is based on a novel enhanced spectral domain approach (ESDA) that combines essentially the conventional spectral domain technique with the power conservation theorem. Numerical results, considering also the influence of finite conductor thickness, are presented for propagation constants and characteristic impedance of the fundamental modes. Effects of different suspended mounting schemes on cutoff frequencies of first higher-order even and odd modes are discussed in detail. Field profiles of the fundamental modes in coupled slotlines with and without pedestals are shown. The inherent mechanism of mode transition is explained with respect to different pedestal sizes, indicating that the monomode bandwidth can be extended by appropriately choosing the dimension of pedestal in coupled slotlinesKeywords
This publication has 18 references indexed in Scilit:
- An efficient approach to modeling of quasiplanar structures using the formulation of power conservation in spectral domainIEEE Transactions on Microwave Theory and Techniques, 1995
- The influence of finite conductor thickness and conductivity on fundamental and higher-order modes in miniature hybrid MIC's (MHMIC's) and MMIC'sIEEE Transactions on Microwave Theory and Techniques, 1993
- A 3-D mode matching technique for the efficient analysis of coplanar MMIC discontinuities with finite metallization thicknessIEEE Transactions on Microwave Theory and Techniques, 1993
- Resonant phenomena in conductor-backed coplanar waveguides (CBCPW's)IEEE Transactions on Microwave Theory and Techniques, 1993
- Equivalent capacitances of coplanar waveguide discontinuities and interdigitated capacitors using a three-dimensional finite difference methodIEEE Transactions on Microwave Theory and Techniques, 1990
- Mode conversion at discontinuities in finite-width conductor-backed coplanar waveguideIEEE Transactions on Microwave Theory and Techniques, 1989
- Overview of quasi-planar transmission linesIEEE Transactions on Microwave Theory and Techniques, 1989
- A Unified Hybrid-Mode Analysis for Planar Transmission Lines with Multilayer Isotropic/Anisotropic SubstratesIEEE Transactions on Microwave Theory and Techniques, 1987
- Calculating the Characteristic Impedance of Finlines by Transverse Resonance MethodIEEE Transactions on Microwave Theory and Techniques, 1986
- Unified user-oriented computation of shielded, covered and open planar microwave and millimeter-wave transmission-line characteristicsIEE Journal on Microwaves, Optics and Acoustics, 1979