Far-field radiation properties of impedance-loaded loop antennas from RF to optical frequencies

Jogender Nagar, Arnold F. McKinley, Douglas Henry Werner

Research output: Contribution to conferencePaper

Abstract

Impedance loading of antennas has been of interest for more than half a century due to its ability to fundamentally change an antenna's operating characteristics. Variable reactive loading can be employed for configurability of the frequency response, polarization and far-field properties of an antenna. Closed-form expressions for the current and input impedance of a thin-wire loop antenna with loads in the periphery were derived in the RF and optical regimes in 1965 and 2017, respectively. Meanwhile, closed-form far-field radiation properties of circular loop antennas in the RF and optical regimes were derived in 1996 and 2017. This paper extends this theory to provide closed-form analytical expressions for the far-field radiation properties of impedance-loaded loop antennas valid from the RF to the optical regimes. The expressions are validated by comparison with commercial simulation tools. In addition, a beam steering example is presented as a potential application of the theory.

Original languageEnglish (US)
StatePublished - Jan 1 2018
Event12th European Conference on Antennas and Propagation, EuCAP 2018 - London, United Kingdom
Duration: Apr 9 2018Apr 13 2018

Other

Other12th European Conference on Antennas and Propagation, EuCAP 2018
CountryUnited Kingdom
CityLondon
Period4/9/184/13/18

Fingerprint

Loop antennas
Antennas
Radiation
Frequency response
Wire
Polarization

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Nagar, J., McKinley, A. F., & Werner, D. H. (2018). Far-field radiation properties of impedance-loaded loop antennas from RF to optical frequencies. Paper presented at 12th European Conference on Antennas and Propagation, EuCAP 2018, London, United Kingdom.
Nagar, Jogender ; McKinley, Arnold F. ; Werner, Douglas Henry. / Far-field radiation properties of impedance-loaded loop antennas from RF to optical frequencies. Paper presented at 12th European Conference on Antennas and Propagation, EuCAP 2018, London, United Kingdom.
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Nagar, J, McKinley, AF & Werner, DH 2018, 'Far-field radiation properties of impedance-loaded loop antennas from RF to optical frequencies' Paper presented at 12th European Conference on Antennas and Propagation, EuCAP 2018, London, United Kingdom, 4/9/18 - 4/13/18, .

Far-field radiation properties of impedance-loaded loop antennas from RF to optical frequencies. / Nagar, Jogender; McKinley, Arnold F.; Werner, Douglas Henry.

2018. Paper presented at 12th European Conference on Antennas and Propagation, EuCAP 2018, London, United Kingdom.

Research output: Contribution to conferencePaper

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AU - McKinley, Arnold F.

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Nagar J, McKinley AF, Werner DH. Far-field radiation properties of impedance-loaded loop antennas from RF to optical frequencies. 2018. Paper presented at 12th European Conference on Antennas and Propagation, EuCAP 2018, London, United Kingdom.