A generalized approach to the analysis and design of microwave bandpass filters on mutually detuned resonator
DOI:
https://doi.org/10.20535/1810-0546.2015.5.51263Keywords:
Bandpass filters, MicrowaveAbstract
Background. Microwave bandpass mutually detuned resonator filters in the parallel channels are fundamentally different from traditional filters cascaded resonator tuned to the same frequency – the connection between the resonators in them is essentially absent because of both the parallel mutual position relative to the direction of propagation, and the mutual detuning frequency. Therefore, the traditional methods of analysis and design using the ladder diagrams of low-frequency counterparts cannot be applied.
Objective. Creating models of microwave bandpass mutually detuned resonator filters in the parallel channels based on the low-frequency counterparts.
Methods. Analysis of all known publications devoted to the microwave bandpass mutually detuned resonator filters in parallel channels allowed to reveal inherent patterns (types of oscillations in parallel channels, the location of the poles of attenuation above or below the bandwidth), manifested regardless of the types of resonators.
Results. The analogy between the characteristics of the microwave bandpass mutually detuned resonator filters in parallel channels and low frequency of prototypes based on bridging bandpass filters is established.
Conclusions. To simulate microwave bandpass mutually detuned resonator filters in parallel channels, low-frequency prototypes based on bridging bandpass filters can be used, design techniques of which are well specified.References
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