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High-Power Low-Pass Harmonic Waveguide Filter With {\rm TE}_{{\rm n}0} -Mode Suppression

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10 Author(s)
Ivan Arregui ; Electr. & Electron. Eng. Dept., Public Univ. of Navarre, Pamplona, Spain ; F. Teberio ; I. Arnedo ; A. Lujambio
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In this letter, a new method for the design of high-power low-pass harmonic filters in rectangular waveguide technology is proposed. Based on a 2-D arrangement of bandstop elements of sinusoidal profile, a filter with a wide spurious-free frequency response (up to the third harmonic) for the fundamental TE10 mode, as well as higher-order TEn0-mode suppression, is achieved. Compared to the classical waffle-iron solution, the novel proposal has a highly increased power-handling capability for the same frequency specifications.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:22 ,  Issue: 7 )