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K-Band Substrate-Integrated Waveguide Filter Using TM21 Mode With Enhanced Stopband Attenuation
- Authors
- Lee, Boyoung; Nam, Seunggoo; Koh, Beyoungyoun; Lee, Juseop
- Issue Date
- 8월-2017
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- K-band filter; substrate-integrated waveguide (SIW); upper stopband
- Citation
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.27, no.8, pp.700 - 702
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
- Volume
- 27
- Number
- 8
- Start Page
- 700
- End Page
- 702
- ISSN
- 1531-1309
- Abstract
- In this letter, we present a method for enhancing the stopband attenuation performance of a K-band TM21 mode filter using substrate-integrated waveguide resonators. To improve the stopband response, we suppress and move spurious resonant peaks and produce transmission zeros. The step-by-step procedure of the proposed three-step method is shown in detail. The measurements show that when using the presented method, the filters exhibit better stopband performances than those in which the presented steps are not followed.
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