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Natural-Frequency Approach to the Synthesis of Narrow-Band Waveguide Absorption Filters

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2 Author(s)
Minakova, L.B. ; Institute of Radiophysics and Electronics, National Academy of Sciences of Ukraine, Kharkov 61085, Ukraine. ; Rud, L.A.

An approach to the synthesis of the waveguide resonator sections filled with a lossy dielectric and absorbing up to 50% of the input power is proposed. The approach is based on the procedure of searching for complex-valued natural frequencies of the resonator sections that provide the required characteristics of a corresponding natural oscillation. Using this approach is promising to design the multi-resonator filters absorbing completely the input power at the desired frequency. The exact numerical results of designing the three-resonator narrow-band absorption filters in the WR-75 rectangular waveguide are presented.

Published in:

Microwave Conference, 2002. 32nd European

Date of Conference:

23-26 Sept. 2002