Theoretrical derivation of mutual coupling and radiation properties of loop antenna arrays valid from RF to optical

Jogender Nagar, Bing Qian Lu, Douglas H. Werner, Mario F. Pantoja

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Circular loop antenna arrays are extremely useful for a wide variety of applications, including geophysical sensing and communications. In the optical regime, these structures are especially useful for solar energy harvesting. One of the most difficult to achieve enabling technologies for these applications is superdirectivity. Rapid design and analysis of these devices requires accurate and efficient calculations for the mutual coupling and radiation properties. Due to the complexity of the integrals involved in the calculations, numerical full-wave solvers are often employed. Unfortunately, these are often timeconsuming and memory-intensive. Closed-form analytical solutions would allow the designer to rapidly analyze the radiation characteristics of an array and lead to extremely efficient optimizations. This paper presents straightforward analytical expressions for computing the radiation properties of arrays including the effects of mutual coupling. The theory is general enough to take into account dispersion and loss of materials at optical frequencies. It will be shown that full-wave simulations for a simple 2x1 array of nanoloops can take up to six hours, while the analytical implementations take less than a minute. As an illustrative example, a broadband highly directive array will be optimized and the resulting design will be validated with full-wave simulations.

Original languageEnglish (US)
Title of host publication2017 IEEE Antennas and Propagation Society International Symposium, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2291-2292
Number of pages2
ISBN (Electronic)9781538632840
DOIs
StatePublished - Oct 18 2017
Event2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017 - San Diego, United States
Duration: Jul 9 2017Jul 14 2017

Publication series

Name2017 IEEE Antennas and Propagation Society International Symposium, Proceedings
Volume2017-January

Other

Other2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017
CountryUnited States
CitySan Diego
Period7/9/177/14/17

All Science Journal Classification (ASJC) codes

  • Radiation
  • Computer Networks and Communications
  • Instrumentation

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    Nagar, J., Lu, B. Q., Werner, D. H., & Pantoja, M. F. (2017). Theoretrical derivation of mutual coupling and radiation properties of loop antenna arrays valid from RF to optical. In 2017 IEEE Antennas and Propagation Society International Symposium, Proceedings (pp. 2291-2292). (2017 IEEE Antennas and Propagation Society International Symposium, Proceedings; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APUSNCURSINRSM.2017.8073188