CST – Computer Simulation Technology

Omnidirectional Metamaterial Antennas Based on e -Near-Zero Channel Matching
Jason C. Soric, Nader Engheta, StefanoMaci, Andrea Alù
IEEE Transactions on Antennas and Propagation
Volume: 61, Issue: 1, January 2013
33 - 44
Antennas, frequency-hopping, matching, metamaterials, multi-band
We present an analytical model and practical design tools to realize cylindrically-symmetric compact antennas based on the anomalous transmission properties of -near-zero (ENZ) ultranarrow radial channels. The flexibility and exotic propagation properties in ENZ metamaterial channels are exploited here to tune and match cylindrically-symmetric antennas, without the need of complex externalmatching networks, in order to realize exciting antenna designs in terms of size, complexity and efficiency. We firstmodel a homogenized Drude dispersive ENZmetamaterial channel to feed a radial parallel-plate waveguide; next we suggest a practical realization of this channel by using radial fins; eventually, we apply the obtained design formulas to realize single- and multi-band cylindrical antennas with a wide tunability range. The designed antennas may operate in the ultra-high frequency (UHF) band and may be realistically tuned over a large bandwidth. We envision applications in frequency-hopping, multi-band, compact, omnidirectional antennas.

Back to References

contact support

Your session has expired. Redirecting you to the login page...

We use cookie to operate this website, improve its usability, personalize your experience, and track visits. By continuing to use this site, you are consenting to use of cookies. You have the possibility to manage the parameters and choose whether to accept certain cookies while on the site. For more information, please read our updated privacy policy

Cookie Management

When you browse our website, cookies are enabled by default and data may be read or stored locally on your device. You can set your preferences below:

Functional cookies

These cookies enable additional functionality like saving preferences, allowing social interactions and analyzing usage for site optimization.

Advertising cookies

These cookies enable us and third parties to serve ads that are relevant to your interests.