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  4. Broadband Septum Polarizer With Triangular Common Port
 
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Broadband Septum Polarizer With Triangular Common Port

Publikationstyp
Journal Article
Publikationsdatum
2020-02
Sprache
English
Author
Deutschmann, Björn 
Jacob, Arne 
Institut
Hochfrequenztechnik E-3 
TORE-URI
http://hdl.handle.net/11420/4875
Enthalten in
IEEE transactions on microwave theory and techniques / Symposium issue 
Volume
68
Issue
2
Start Page
693
End Page
700
Citation
IEEE Transactions on Microwave Theory and Techniques 2 (68): 693-700 (2020)
Publisher DOI
10.1109/TMTT.2019.2951138
Scopus ID
2-s2.0-85079599454
This article presents a novel broadband septum polarizer with a relative bandwidth (BW) of 37.8%. This is significantly more than the approximate 25% BW of square and circular waveguide polarizers. It is enabled by using an equilateral triangular common port waveguide, which guarantees the largest possible frequency range between fundamental and next higher order mode cutoff. The transition between the triangular section and the rectangular input waveguides, which includes the septum, is designed to accommodate this large BW. The simulation is validated using a polarizer designed for 75–110 GHz and fabricated by conventional precision milling. A second polarizer is realized for the 18-to-26 GHz range by employing additive manufacturing to demonstrate the advantages of this technology in this context. In both cases, the axial ratio remains below 1.3 dB, whereas the input port isolation and the input return loss exceed 17 and 15 dB, respectively.
Projekt(e)
Voll integrierter dual polarisierter Gruppenstrahler mit ultrabreitbandigem Ein-Chip-CMOS-Empfänger (DataRace)/Drahtlose Ultrahochgeschwindigkeitskommunikation für den mobilen Internetzugriff - DataRace 
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