Nanowire-Based 3-D Transmission-Line Transformer for Millimeter-Wave Applications

In this letter, 3-D transformers based on transmission lines (TLs) working at mm-wave frequencies are presented. They were realized in a low-cost technology based on metallic-filled nanoporous membranes. Several transformers were designed and measured with different numbers of turns, from 1 to 6 tur...

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Veröffentlicht in:IEEE microwave and wireless components letters 2022-10, Vol.32 (10), p.1171-1174
Hauptverfasser: Frutuoso, Tadeu M., Le, Joao, Berthoud, Yoann, Pinheiro, Julio M., Margalef-Rovira, Marc, Ferrari, Philippe, Rehder, Gustavo P., Serrano, Ariana L. C.
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Sprache:eng
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Zusammenfassung:In this letter, 3-D transformers based on transmission lines (TLs) working at mm-wave frequencies are presented. They were realized in a low-cost technology based on metallic-filled nanoporous membranes. Several transformers were designed and measured with different numbers of turns, from 1 to 6 turns. They exhibit working frequencies from 14.5 up to 110 GHz. The 1-dB bandwidth (BW) of the realized transformers is better than 12 GHz, and the insertion loss (IL) is between 1.1 and 1.6 dB, thus demonstrating a high efficiency at mm-waves. Transformers could be further improved by better optimizing the TLs and their return current path, which is a key parameter to be considered, given the distributed nature of the proposed transformers.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2022.3159096