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This paper presents a direct approach to the synthesis of a general Chebyshev coupled resonator filter with a frequency variant complex load. The new approach is based on the power wave renormalization of admittance parameters of a matched filter with a complex load to unitary load. When the port reference is changed from a complex load to a real load, a set of new expressions of admittance parameters...
This paper presents a direct synthesis approach for general Chebyshev filters terminated by a frequency-dependent complex load at one port. The new approach is based on the fact that the polynomial functions for filter synthesis are composed for any matched loads. Using power wave normalization, the polynomial functions with a complex matched load are normalized to new polynomials with real reference...
This paper presents a direct synthesis approach for general Chebyshev filters terminated with a complex load. The new approach is based on the fact that the polynomial functions for synthesizing the filters are composed for any matched loads. By normalizing the polynomial functions with assumed complex matched load impedance by a real reference load impedance using power waves normalization, a set...
A novel hybrid technique for synthesis of N-tuplets microwave coupled-resonator filter is proposed in this paper. This new approach only requires little numerical optimization. The original coupling matrix is first transformed to a midway structure, which consists of two sub matrices cascaded by a resonator. Then each sub matrices can be individually transformed to an N-tuplets structure by available...
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