Dimensions of microstrip coupled lines and interdigital structures
Abstract
A method is presented for finding dimensions of coupled lines and interdigital structures on microstrip given the electrical properties. Both a graphical approach and computer approach using polynomial approximations are given. These results are within 1 percent of Bryant and Weiss' dimensions for coupled lines for most practical stripwidths and spacings. Experimental data for a 10-percent bandwidth microstrip interdigital filter are given.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- May 1977
- DOI:
- 10.1109/TMTT.1977.1129111
- Bibcode:
- 1977ITMTT..25..405M
- Keywords:
-
- Digital Filters;
- Frequency Response;
- Microstrip Transmission Lines;
- Microwave Coupling;
- Microwave Filters;
- Network Synthesis;
- Bandwidth;
- Capacitance;
- Matrices (Circuits);
- Permittivity;
- Polynomials;
- Electronics and Electrical Engineering