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New design of frequency-dependent phase shifter for array sensor applications

Published online by Cambridge University Press:  27 August 2025

Alejandro Javier Venere Open the ORCID record for Alejandro Javier Venere [Opens in a new window] ,
Juan Pablo Pascual  and
Jorge Cogo
Alejandro Javier Venere*
Affiliation:
Departamentos de Ingeniería en Telecomunicaciones, Comisión Nacional de Energía Atómica. Av. Bustillo, San Carlos de Bariloche, Bariloche, Rio Negro, Argentina Instituto Balseiro, Universidad Nacional de Cuyo, Comisión Nacional de Energía Atómica. Av. Bustillos, San Carlos de Bariloche, Bariloche, Río Negro, Argentina
Juan Pablo Pascual
Affiliation:
Departamentos de Ingeniería en Telecomunicaciones, Comisión Nacional de Energía Atómica. Av. Bustillo, San Carlos de Bariloche, Bariloche, Rio Negro, Argentina Instituto Balseiro, Universidad Nacional de Cuyo, Comisión Nacional de Energía Atómica. Av. Bustillos, San Carlos de Bariloche, Bariloche, Río Negro, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Av. Bustillos, San Carlos de Bariloche, Bariloche, Río Negro, Argentina
Jorge Cogo
Affiliation:
Universidad Nacional de Río Negro. CITECCA. Anasagasti, San Carlos de Bariloche, Bariloche, Río Negro, Argentina
*
Corresponding author: Alejandro Javier Venere; Email: alejandro.venere@gmail.com
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Abstract

This article presents a microstrip phase shifter whose frequency-dependent phase response is designed to present the desired phase variation as a useful device for frequency-controlled antenna array systems. The architecture consists of the parallel connection of open-stubs on a main transmission line. The analytical model of the device is presented, its transfer function is derived and compared with a conventional transmission line. The theoretical results show that the phase and amplitude responses can be designed by selecting the number, the length, and the characteristic impedance of the open-stubs. In order to validate the frequency controlled phase shifter model an architecture is proposed, that consists of a three-port device based on a power divider with a phase shifter on one of the output ports and a conventional transmission line on the other. A prototype of this architecture has been manufactured to operate in a frequency range of 2.8 GHz to 3.4 GHz. The magnitude and phase measurements of the scattering parameters show good agreement with the theoretical predictions.

Keywords

Antenna arraysfrequency scanningphase shiftersphased array

Information

Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , First View , pp. 1 - 6
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Copyright
© The Author(s), 2025. Published by Cambridge University Press in association with The European Microwave Association.

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