A Low-Pass Prototype Network Allowing the Placing of Integrated Poles at Real Frequencies
- 1 January 1983
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 31 (1) , 40-45
- https://doi.org/10.1109/tmtt.1983.1131426
Abstract
This paper details a procedure by which a number of attenuation poles can be placed at differing frequencies, giving an asymmetric or symmetrical response, the only restriction being that the network must be physically symmetrical. If a number of poles are placed on one side of the passband, this technique can be used to greatly increase the selectivity of a filter on this side, while maintaining an equiripple passband response. There are four possible arrangements for these filters. They can have even or odd degree with an even or odd number of integrated poles. Only three of these are realizable in a symmetrical network and these possibilities are dealt with individually. An example is given in the case of an odd-degree filter with an odd number of integrated poles placed at two frequencies on opposite sides of the passband.Keywords
This publication has 4 references indexed in Scilit:
- Asymmetric SynthesisPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1981
- General Extracted Pole Synthesis Technique with Applications to Low-Loss TE/sub011/ Mode FiltersIEEE Transactions on Microwave Theory and Techniques, 1980
- The generalized chebyshev low‐pass prototype filterInternational Journal of Circuit Theory and Applications, 1980
- General Three-Resonator Filters in WaveguideIEEE Transactions on Microwave Theory and Techniques, 1966