The modeling of packaged modules that involve irregular metal shapes and lossy, dispersive materi... more The modeling of packaged modules that involve irregular metal shapes and lossy, dispersive materials requires design algorithms that combine the computational efficiency with the numerical accuracy over wide frequency bands. This paper presents the formulation of a hybrid FDTD method integrating a quasi-static subgridding algorithm and employing digital predictors. Three techniques of DSP-based digital predictors are used to calculate the
This chapter contains sections titled: Introduction Fundamental Considerations Link Budget Analys... more This chapter contains sections titled: Introduction Fundamental Considerations Link Budget Analysis Propagation Effects Interface Planning Superheterodyne Architecture Low IF Architecture Direct Conversion Architecture Two-Stage Direct Conversion Current-Mode Architecture Subsampling Architecture Multiband Direct Conversion Radio Polar Modulator Harmonic Reject Architecture Practical Considerations for Transceiver Integration Conclusion References IntroductionFundamental ConsiderationsLink Budget AnalysisPropagation EffectsInterface PlanningSuperheterodyne ArchitectureLow IF ArchitectureDirect Conversion ArchitectureTwo-Stage Direct ConversionCurrent-Mode ArchitectureSubsampling ArchitectureMultiband Direct Conversion RadioPolar ModulatorHarmonic Reject ArchitecturePractical Considerations for Transceiver IntegrationConclusionReferences
ABSTRACT An experimental investigation on the inkjet-printed power harvester for 2.4GHz is presen... more ABSTRACT An experimental investigation on the inkjet-printed power harvester for 2.4GHz is presented in this paper. An one stage discrete rectifier based on a voltage doubler structure and a planar monopole antenna are fabricated on cardboard using inkjet-printing technology. Eventually, the performance of the whole system is examined by measuring the output voltage of the RF power harvester. By the utilization of the proposed idea, the fabrication of low-cost environmentally-friendly battery-less wireless modules is conceivable.
IEEE Antennas and Wireless Propagation Letters, 2015
ABSTRACT We present a fully inkjet-printed novel wideband planar monopole antenna on thin packagi... more ABSTRACT We present a fully inkjet-printed novel wideband planar monopole antenna on thin packaging cardboard available in bulk for low-cost and environmentally-friendly mass manufacturing. We outline the characterization and the dielectric properties of the cardboard which are imperative for the successful design of an antenna on a paper-based substrate. To achieve highly conductive inkjet-printed pattern on the fibrous and porous cardboard, we deposit thin dielectric coating on the cardboard in the same inkjet process. The operation of the antenna is attested through simulations and measurements in the frequency range of 600-1500 MHz, where there are several strong radio signals present for ambient RF energy harvesting.
The modeling of packaged modules that involve irregular metal shapes and lossy, dispersive materi... more The modeling of packaged modules that involve irregular metal shapes and lossy, dispersive materials requires design algorithms that combine the computational efficiency with the numerical accuracy over wide frequency bands. This paper presents the formulation of a hybrid FDTD method integrating a quasi-static subgridding algorithm and employing digital predictors. Three techniques of DSP-based digital predictors are used to calculate the
This chapter contains sections titled: Introduction Fundamental Considerations Link Budget Analys... more This chapter contains sections titled: Introduction Fundamental Considerations Link Budget Analysis Propagation Effects Interface Planning Superheterodyne Architecture Low IF Architecture Direct Conversion Architecture Two-Stage Direct Conversion Current-Mode Architecture Subsampling Architecture Multiband Direct Conversion Radio Polar Modulator Harmonic Reject Architecture Practical Considerations for Transceiver Integration Conclusion References IntroductionFundamental ConsiderationsLink Budget AnalysisPropagation EffectsInterface PlanningSuperheterodyne ArchitectureLow IF ArchitectureDirect Conversion ArchitectureTwo-Stage Direct ConversionCurrent-Mode ArchitectureSubsampling ArchitectureMultiband Direct Conversion RadioPolar ModulatorHarmonic Reject ArchitecturePractical Considerations for Transceiver IntegrationConclusionReferences
ABSTRACT An experimental investigation on the inkjet-printed power harvester for 2.4GHz is presen... more ABSTRACT An experimental investigation on the inkjet-printed power harvester for 2.4GHz is presented in this paper. An one stage discrete rectifier based on a voltage doubler structure and a planar monopole antenna are fabricated on cardboard using inkjet-printing technology. Eventually, the performance of the whole system is examined by measuring the output voltage of the RF power harvester. By the utilization of the proposed idea, the fabrication of low-cost environmentally-friendly battery-less wireless modules is conceivable.
IEEE Antennas and Wireless Propagation Letters, 2015
ABSTRACT We present a fully inkjet-printed novel wideband planar monopole antenna on thin packagi... more ABSTRACT We present a fully inkjet-printed novel wideband planar monopole antenna on thin packaging cardboard available in bulk for low-cost and environmentally-friendly mass manufacturing. We outline the characterization and the dielectric properties of the cardboard which are imperative for the successful design of an antenna on a paper-based substrate. To achieve highly conductive inkjet-printed pattern on the fibrous and porous cardboard, we deposit thin dielectric coating on the cardboard in the same inkjet process. The operation of the antenna is attested through simulations and measurements in the frequency range of 600-1500 MHz, where there are several strong radio signals present for ambient RF energy harvesting.
Uploads
Papers