N-Path Phase Shifter and Its Applications
This paper presents an original design for RF phase shifting based on N-path filtering. This approach enables to address various functionalities as I/Q generator, phase shifters for antenna array or baluns that are frequency selective, frequency tunable, and achieve positive voltage gain. As a demonstration, an N-path balun is implemented in the GF 45RFSOI technology node and measured. The circuit operates from 250 MHz to 1.25 GHz, showing a maximum measured gain of 6.9 dB and a minimum noise figure of 2.5 dB at 250 MHz for 1.2 mW power consumption. The maximum amplitude and phase imbalances are 0.4 dB and 0.5°, respectively.
Authors
- Imadeddine Bendjeddou (ORCID: https://orcid.org/0000-0003-0158-301X)
- Dominique Morche (ORCID: https://orcid.org/0000-0002-5762-4135)
- Jordan Corsi (ORCID: https://orcid.org/0000-0003-1840-7506)
- Loı̈c Vincent (ORCID: https://orcid.org/0000-0001-6340-9645)
- Mamadou Lamine Diallo (ORCID: https://orcid.org/0000-0002-9674-2951)
- Yannis Le Guennec (ORCID: https://orcid.org/0000-0002-4813-4353)
- Sylvain Bourdel (ORCID: https://orcid.org/0000-0001-9930-9945)
- Fadel Mohsen
- Florence Podevin (ORCID: https://orcid.org/0000-0002-8477-5617)
Institutions
- Institut polytechnique de Grenoble (FR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- CEA Grenoble (FR)
- Techniques of Informatics and Microelectronics for Integrated Systems Architecture (FR)
- Centre Interuniversitaire de MicroElectronique et Nanotechnologies (FR)
- GIPSA-Lab (FR)
- Laboratoire d'Électronique des Technologies de l'Information (FR)
- Université Grenoble Alpes (FR)
Publication Details
- Published
- 2025-06-22
- DOI
- https://doi.org/10.1109/newcas64648.2025.11107069
- Primary Topic
- Radio Frequency Integrated Circuit Design
- Type
- article
- Field-Weighted Citation Impact
- 0.00