Abstract
The design of RF filters is complex compared to the design of power frequency filters used at the output of rectifier circuits to smooth ac ripple components. Many technologies are available considering frequency, performance, size, power handling and cost of RF filters. The L-C circuit configurations for lumped RF filters are presented with the functioning of the circuits. The concept of semi-lumped RF filter, resonance in microwave coaxial cavity, combline and iris-coupled cavity filters are technologies are explained in detail. Information regarding power handling capacity, equivalent circuit and factors to minimise insertion loss of cavity filters are provided. The basic microstrip and stripline circuit and the computer aids for designing the filters are also explained.
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Natarajan, D. (2013). RF Filter Design Technologies. In: A Practical Design of Lumped, Semi-lumped & Microwave Cavity Filters. Lecture Notes in Electrical Engineering, vol 183. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32861-9_4
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DOI: https://doi.org/10.1007/978-3-642-32861-9_4
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