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Wideband Behavioral Model for Nonlinear Operation of Bandpass Sampling Receivers

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2 Author(s)
Pedro M. Cruz ; Departamento de Electrónica, Telecomunicações e Informática, Instituto de Telecomunicações, Universidade de Aveiro, Aveiro, Portugal ; Nuno Borges Carvalho

In this paper, a new behavioral model for bandpass sampling receivers (BPSRs) is presented. The new model describes the wideband behavior of the BPSR and addresses specifically its nonlinear behavior, either in-band distortion, but also intermodulation and harmonic generation. The proposed model allows the selection of different memory taps for each nonlinear mixing cluster. This model capability simplifies the mathematical description of each cluster, being possible to describe the nonlinear behavior of the BPSR using low-complexity operators. An original model parameter-extraction procedure that works in parallel for each cluster of nonlinearities will also be presented. Moreover, the presented behavioral model and respective parameter-extraction performances will be assessed by using several different excitations when applied in different Nyquist zones of the used BPSR.

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IEEE Transactions on Microwave Theory and Techniques  (Volume:59 ,  Issue: 4 )