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Transmission zeros origin and behaviour in a Microwave Transversal Filter based on Planar Technology
This paper uses a simple configuration to implement a bandpass transversal filter based on microstrip technology. The structure is of second order and implements two transmission zeros and two reflection zeros in the frequency response of the filter. The basic configuration consists of input and output ports coupled in a shunt configuration to two printed resonators of different lengths. A method consisting of several simple steps was obtained to achieve the filter at the desired central frequency.
Measured results confirm theoretical predictions, and validate the structure for high selective applications.
Key words: RF-60A, bandpass transversal filter
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