Jacques Verdier

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This article is dedicated to the design of rectifying antenna for wireless energy transfer at 2.45 GHz in the special case of low input power (typically <-10 dBm). As the rectifiers present an important non-linear behavior with such power levels, specific design guidelines must be respected in order to optimize the structure. Different rectifying circuits(More)
A new simulation method for continuous time digital signal processing RF architectures is proposed. The approach is based on a discrete time representation of the input signal combined with a linear interpolation. Detailed theoretical calculations are presented, which prove the efficiency of the simulation when dealing with narrowband RF signals. We show(More)
In this paper, we address the architecture of multistandard simultaneous reception receivers and we aim to reduce the complexity of the analog front-end. To this end, we propose an architecture using the double orthogonal translation technique in order to multiplex two signals received on different frequency bands. A study case concerning the simultaneous(More)
This paper addresses the architecture of multistandard simultaneous reception receivers and aims at improving the performance-power-complexity trade-off of the front-end. To this end we propose a single front-end architecture offering lower complexity and therefore lower power consumption. In order to obtain the same performance as the state of the art(More)
This paper provides an analysis of the impact of radio frequency (RF) front end impairments (I/Q gain and phase imbalance, phase noise, non-linear distortion and direct current offset) on the performance of a single input multiple output orthogonal frequency division multiplexing (SIMO OFDM) receiver. We developed a new estimation/compensation scheme to(More)
In this paper, we address the architecture of multistandard simultaneous reception receivers and we aim to reduce the complexity of the analog front-end. To this end we propose an architecture using the double orthogonal translation technique in order to multiplex two signals received on different frequency bands. A study case concerning the simultaneous(More)
This paper presents and compares different rectifying antenna (rectenna) circuit topologies optimized for sub-mW incident microwave power levels. Excellent performance is achieved in terms of output voltage level and RF to DC conversion efficiency. Several prototypes have been fabricated using small localized components and tested. A detailed study of the(More)
In this paper we address the problem of efficiently evaluate performance of concurrent radio links on overlapped channels. In complex network topologies with various standards and frequency channels, simulating a realistic PHY layer communication is a key point. The presented coupled simulation-measurement platform offers a very promising way of rapidly(More)