Realization of Broadband Matched Filter Structures Based on Dual Networks
- RF and Microwave Institute, Ruhr-University Bochum, Universitätsstrasse 150, 44780 Bochum, Germany
Abstract. This paper deals with the basic electrical properties of dual networks and with their application in broadband matched filter structures.
Starting with the main characteristics and different realization methods of dual networks, a filter structure is presented, which is based on a combination of dual networks and which provides a broadband matched input and two decoupled output ports. This filter synthesis focuses on the design of high pass filters, which are suitable to be used as differentiating stages in electrical pulse generators as a part of the so-called pulse shaping network. In order to achieve a proper pulse shape and for the prevention of multiple reflections between the switching circuit and the differentiating network, a broadband matched filter is a basic requirement.