This article is the third in a three-part tutorial series covering antenna terminology. As noted, our intention is to discuss standardized antenna terminology as published in the IEEE Standard Definitions of Terms for Antennas, and how this terminology compares with the nomenclature that is commonly used in the EMC community. In the first part of this series, we discussed radiation efficiency a...

Electrostatic discharge (ESD) protection devices can have an adverse effect on the performance of high frequency and RF circuits. This work presents for the first time, an s-parameter based analysis of the performance of RF circuits with various ESD protection designs. Additionally, a design methodology for distributed ESD protection using coplanar waveguides is developed to achieve a better im...

A novel UHF RFID tag antenna that can be seamlessly integrated into wrapping paper of metallic objects is reported. When designed for printing on cigarette carton with aluminum foil contained, both numerical simulation and measurement indicate that the proposed antenna has input impedance of (20 + j149) at resonant frequency of 915MHz, which provides satisfactory conjugate match to the Alien Hi...

A novel TEM horn antenna placed in a solid dielectric medium is proposed for microwave imaging of the breast. The major design requirement is that the antenna couples the microwave energy into the tissue without being immersed itself in a coupling medium. The antenna achieves this requirement by: 1) directing all radiated power through its front aperture, and 2) blocking external electromagneti...

The over-voltage phenomenon is usually described using the traveling wave and reflection phenomena in variable speed drive system. A voltage pulse, initiated at the inverter, being reflected at the motor terminals due to a mismatch between the surge impedance of the motor and the cable. In this paper, resistance, inductance and capacitance of the cable and the motor windings are obtained experi...

The aim of this paper is to propose a statistical analysis the performance an RFID system in high-density context, based on physical model which takes into account mutual coupling and random position tags. read-range isolated tag measured validated from simulation. degradation terms power absorbed by chip analysed presence surrounded shortcircuited Then set randomly distributed tags are modelle...

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In this paper, we present an efficient IP packet forwarding methodology and architecture. This is achieved by partitioning the lookup table into the smaller ones for each output port and allowing a forwarding engine to process them in parallel. This effectively reduces the complexity of finding “the longest prefix match” problem to “the first prefix match” problem.

Reference 1. van Diggelen JMH, Lamers LPM, van Dijk G, SchaafsmaMJ, Roelofs JGM, et al. (2014) New Insights into Phosphorus Mobilisation from Sulphur-Rich Sediments: Time-Dependent Effects of Salinisation. PLoS ONE 9(11): e111106. doi:10.1371/journal.pone.0111106 PMID: 25369128 Fig 4. Oxygen (O2) concentration (mg L ) profile per mm of both sediments (A and B), at the sediment-water interface (...