@article{10902/21106,
year = {2021},
month = {1},
url = {http://hdl.handle.net/10902/21106},
abstract = {A concurrent dual-band self-oscillating mixer (SOM), based on a ring-shaped stepped-impedance resonator, is proposed and analyzed in detail. Taking advantage of the ring even and odd resonances, the circuit can operate in concurrent dual quasi-periodic mode and injection-locked mode. In the second case, it behaves as a dual-band zero-intermediate-frequency (IF) mixer. Initially, an analytical study of the SOM behavior in the two modes is presented. Then a variety of accurate numerical methods are used for an in-depth investigation of the main aspects of its performance, including stability, conversion gain, linearity, and phase noise. The recently proposed contour-intersection technique and the outer-tier perturbation analysis are suitably adapted to the SOM case. A method is also presented to distinguish the parameter intervals leading to heterodyne and to zero-IF operation at both the lower and upper frequency bands. In the zero-IF SOM, the possible instantaneous unlocking in the presence of modulated input signals is investigated and avoided. The methods have been applied to a dual mixer at the frequencies 2.4 and 4.1 GHz.},
organization = {This work was supported by the Spanish Ministry of Economy and Competitiveness through the European Regional Development Fund (ERDF)/ Fondo Europeo de Desarrollo Regional (FEDER) and under Project TEC2017-88242-C3-(1/2)-R.},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
publisher = {IEEE Transactions on Microwave Theory and Techniques, 2021, 69(1), 786-802},
publisher = {IEEE MTT-S International Microwave Symposium (IMS), Los Angeles, USA, 2020},
title = {Double functionality concurrent dual-band self-oscillating mixer},
author = {Pontón Lobete, María Isabel and Herrera Guardado, Amparo and Suárez Rodríguez, Almudena},
}