Numerical studies of the interaction of time-modulated multi-gigabit sequences with metamaterial structures at millimeter-wave frequencies : Invited Paper
✍ Scribed by Steven J. Franson; Richard W. Ziolkowski
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 835 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0894-3370
- DOI
- 10.1002/jnm.606
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✦ Synopsis
Abstract
It is shown with time domain simulations using the finite integration technique (FIT) that a metamaterial that acts as an artificial magnetic conductor (AMC), i.e. a metamaterial which produces an in‐phase reflection, exhibits a time delay before its intended response can occur. A millimeter‐wave metamaterial AMC is obtained as a generalization of a successfully designed microwave frequency AMC block consisting of an array of capacitively loaded loops (CLLs). It is also shown that while this time delay does distort millimeter‐wave frequency signals composed of time‐modulated multi‐gigabit sequences, it does not have a detrimental impact on the overall system performance when these multi‐gigabit/s signals interact with this CLL‐based AMC. This time delay behaviour is demonstrated for several different but common communication‐based modulation schemes. The presence of peculiar spikes in the output waveforms is tied to the time domain behaviour of the currents on the CLLs in the metamaterial AMC. Copyright © 2006 John Wiley & Sons, Ltd.