A 19.5 Ghz 5-bit digitally programmable phase shifter for active antenna arrays

Esteban Eraso, Uxua (Universidad de Zaragoza) ; Sánchez-Azqueta, Carlos (Universidad de Zaragoza) ; Aldea, Concepción (Universidad de Zaragoza) ; Celma, Santiago (Universidad de Zaragoza)

Resumen: This paper presents the design of a new phase shifter to be used in a receiver of active antenna array operating in the range from 17 GHz to 22 GHz. Beamforming is achieved by controlling the phase of the signal in each radiant element. In this context, the phase shift is obtained by the combination of a quadrature signal generator (QSG) and a variable gain amplifier (VGA). This work is focused on the design of a VGA which has a set of dummy transistors to keep the input and output impedance constant. The phase shifter is digitally programmable using a 5-bit word. The system was laid out using a 65 nm CMOS process, and the physical post-layout results show that the phase shifter achieves root mean square errors of 4.5° for the phase and 0.79 dB for the gain at a frequency of 19.5 GHz. A comparative analysis with other recently published phase shifters shows that the proposed phase shifter presents a good compromise between power consumption and accuracy.

Idioma: Inglés

DOI: 10.3390/electronics12132862

Año: 2023

Publicado en: Electronics 12, 13 (2023), 2862 [10 pp.]
ISSN: 2079-9292

Factor impacto JCR: 2.6 (2023)

Categ. JCR: COMPUTER SCIENCE, INFORMATION SYSTEMS rank: 115 / 250 = 0.46 (2023) - Q2 - T2
Categ. JCR: PHYSICS, APPLIED rank: 81 / 179 = 0.453 (2023) - Q2 - T2
Categ. JCR: ENGINEERING, ELECTRICAL & ELECTRONIC rank: 157 / 353 = 0.445 (2023) - Q2 - T2

Factor impacto CITESCORE: 5.3 - Hardware and Architecture (Q2) - Control and Systems Engineering (Q2) - Electrical and Electronic Engineering (Q2) - Signal Processing (Q2) - Computer Networks and Communications (Q2)

Factor impacto SCIMAGO: 0.644 - Electrical and Electronic Engineering (Q2) - Computer Networks and Communications (Q2) - Signal Processing (Q2) - Hardware and Architecture (Q2) - Control and Systems Engineering (Q2)

Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2020-114110RA-I00
Financiación: info:eu-repo/grantAgreement/ES/DGA/LMP106-21
Financiación: info:eu-repo/grantAgreement/ES/MICINN/RTC2019-007039-7

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Aplicada (Dpto. Física Aplicada)
Área (Departamento): Área Electrónica (Dpto. Ingeniería Electrón.Com.)