Interpolation strategy for broadband evaluation of characteristic modes

Su, D.; Zhao, Yang; Wu, Qi

doi:10.1049/iet-smt.2017.0523

Cited by 1 publication

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References 22 publications

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“…In this case, one needs to capture more modes and track them in a wide frequency range, which may cause some issues on mode computation. The adaptive frequency refinement method may help alleviating this issue [ 19 ] .…”

Section: Discussionmentioning

confidence: 99%

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Temporal Modal Analysis of Small Radiators

2022

Chinese J of Electronics

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Resonance is a common physical phenomenon in real world, and the modal analysis is a useful tool. Within the regime of electromagnetics, characteristic mode theory is established in frequency domain (FD), and it is doubtful that whether we can find similar modes in time domain (TD). In this paper, resonating modes of a vibrating string are briefly reviewed. Special attentions are paid to the time-domain behaviors of the resonating modes, by following which a temporal modal analysis is proposed. Additionally, a narrow plate is selected as an example since it has a similar structure as the vibrating string. Temporal modal behaviors of the plate are presented and discussed. To further demonstrate this concept, a rigorous analysis of a sphere is provided. A frequency-independent condition is discussed and verified for small objects, and it results in a band-limited constraint. In addition, the temporal modal analysis with excitations is presented, and its potential applications are discussed with emphasis on the analyzing and optimizing transient behaviors of antennas. This work expands largely the field of characteristic mode and may find applications for scattering and antennas.

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Section: Discussionmentioning

confidence: 99%

“…( 4), such as spheres, infinitely long cylinders with a circular or elliptic cross section [5,17] . It is also shown that eigencurrents of arbitrarily shaped structures hardly vary with frequency if the structures are electrically small [18] .…”

Section: J N (Jω)mentioning

confidence: 99%

Temporal Modal Analysis of Small Radiators

2022

Chinese J of Electronics

Self Cite

View full text Add to dashboard Cite

show abstract

Interpolation strategy for broadband evaluation of characteristic modes

Cited by 1 publication

References 22 publications

Temporal Modal Analysis of Small Radiators

Temporal Modal Analysis of Small Radiators

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