摘要
A new technique combining the transverse resonance method with the singular integral equation technique is presented for the unified analysis of discontinuities occurring in the E-plane fin septa. Two shorting planes are placed at some distances away from the discontinuity so as to form a closed resonator. According to the resonant condition, the equivalent circuit parameters for the discontinuity are expressed in terms of the distances between the shorting planes and the reference planes. The distances, in turn, are determined with the singular integral equation technique. A set of curves of the equivalent circuit parameters for the discontinuities are given. Based on the present analysis, the bandpass filters composed of unilateral and bilateral E-plane fin septa are designed and fabricated at Ka-band. The experimental results agree well with the theoretical predictions.
A new technique combining the transverse resonance method with the singular integral equation technique is presented for the unified analysis of discontinuities occurring in the E-plane fin septa. Two shorting planes are placed at some distances away from the discontinuity so as to form a closed resonator. According to the resonant condition, the equivalent circuit parameters for the discontinuity are expressed in terms of the distances between the shorting planes and the reference planes. The distances, in turn, are determined with the singular integral equation technique. A set of curves of the equivalent circuit parameters for the discontinuities are given. Based on the present analysis, the bandpass filters composed of unilateral and bilateral E-plane fin septa are designed and fabricated at Ka-band. The experimental results agree well with the theoretical predictions.
