| Full text | |
| Author(s): |
Frutuoso, Tadeu M.
;
Le, Joao
;
Berthoud, Yoann
;
Pinheiro, Julio M.
;
Margalef-Rovira, Marc
;
Ferrari, Philippe
;
Rehder, Gustavo P.
;
Serrano, Ariana L. C.
Total Authors: 8
|
| Document type: | Journal article |
| Source: | IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS; v. 32, n. 10, p. 4-pg., 2022-05-05. |
| Abstract | |
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. (AU) | |
| FAPESP's process: | 16/25779-9 - Multi-User Equipment aproved in grant 2012/15159-2: Vector Network Analyser (VNA) up to 70 GHz |
| Grantee: | Ariana Maria da Conceicao Lacorte Caniato Serrano |
| Support Opportunities: | Multi-user Equipment Program |
| FAPESP's process: | 18/08782-1 - Miniaturized and integrated chemical sensors: new fabrication platforms for biological, clinical and environmental applications |
| Grantee: | Mauro Bertotti |
| Support Opportunities: | Research Projects - Thematic Grants |