2015
DOI: 10.1109/tap.2014.2384028
|View full text |Cite
|
Sign up to set email alerts
|

Stored Energies and Radiation Q

Abstract: This paper discusses the methods for evaluating the stored electromagnetic energies and the radiation Q for an arbitrary lossless antenna. New expressions for the stored electromagnetic energies are derived by using the Poynting theorem in the complex frequency domain, and they are compared with previous theory and are validated by numerical examples. The minimization of radiation Q is also investigated. There exists an optimal current distribution that minimizes the radiation Q for specified antenna geometry.… Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

2
42
0

Year Published

2015
2015
2023
2023

Publication Types

Select...
5
1

Relationship

1
5

Authors

Journals

citations
Cited by 37 publications
(44 citation statements)
references
References 38 publications
2
42
0
Order By: Relevance
“…To avoid ambiguity, the letter s and the black arrow nearby in Figure 3a have indicated the reference starting point and the current display direction along the radiator in (b), respectively. The optimal current and Q of such a dipole have already been reported in Wen (2015), and one sees that with a single feed at the dipole center, a well-known triangular distribution is excited, and it can be taken as a reasonable approximation for J opt . Note that in Figure 3b, the single-feed module calculated [K 1 ] peak locates the single feed right at the center.…”
Section: 1029/2019rs006957mentioning
confidence: 90%
See 2 more Smart Citations
“…To avoid ambiguity, the letter s and the black arrow nearby in Figure 3a have indicated the reference starting point and the current display direction along the radiator in (b), respectively. The optimal current and Q of such a dipole have already been reported in Wen (2015), and one sees that with a single feed at the dipole center, a well-known triangular distribution is excited, and it can be taken as a reasonable approximation for J opt . Note that in Figure 3b, the single-feed module calculated [K 1 ] peak locates the single feed right at the center.…”
Section: 1029/2019rs006957mentioning
confidence: 90%
“…It essentially covers a wide range of practical antenna optimization problems, such as gain (G), quality factor (Q), G/Q, and radiation efficiency. These optimization problems, especially vital for electrically small antennas (ESAs), have been studied for decades, and great progress has been made (Chu, 1948;Cismasu & Gustafsson, 2014;Collin & Rothschild, 1964;Ethier & McNamara, 2014;Fante, 1969;Gustafsson et al, 2012;Gustafsson & Nordebo, 2013;Harrington, 1960;Jelinek & Capek, 2017;Kim, 2012Kim, , 2016McLean, 1996;Thal, 2006;Vandenbosch, 2011;Wen, 2013Wen, , 2015Yaghjian & Best, 2005).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…They have used some references (references 2 and 3 in [1]) to support their assertion and totally disregarded the discussions in the commented paper as well as in the related references [17] [18], which are missing in the reference section of the comment. We stress again that the Foster reactance theorem has been derived for an ideal antenna connected with a feeding waveguide in a single-mode operation.…”
Section: Further Notes On Foster Reactance Theorem For An Ideal Anmentioning
confidence: 99%
“…We stress again that the Foster reactance theorem has been derived for an ideal antenna connected with a feeding waveguide in a single-mode operation. Although the feeding waveguide is assumed in the derivation of the Foster reactance theorem, we find, from numerous numerical simulations [6][17] [18], that the Foster reactance theorem also applies for an infinitely thin wire antenna excited by a delta function generator.…”
Section: Further Notes On Foster Reactance Theorem For An Ideal Anmentioning
confidence: 99%