Performance of coupled transmission line cell for generating standard EM fields

Yun, Jae-Hoon; Kim, J.S.; Cho, W.S.; Kim, J.K.

doi:10.1049/el:19980867

Cited by 14 publications

(10 citation statements)

References 2 publications

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“…When the SCTL cell is used to generate a plane wave like far field via odd mode feeding, the odd mode characteristic impedance of the cell should be 50 [12]. If the SCTL cell is designed for simulating a near field with arbitrary wave impedance values, the characteristic impedance ( , where is even mode characteristic impedance) of the cell should be kept 50 [11].…”

Section: Structures Of Sctl Cellmentioning

confidence: 99%

“…Fig. 2 shows the calculated versus to maintain using the Newton-Raphson method (NRM) mixed with moment method (MM) [5], [12] when and are 91.4 cm and is 0.3 cm.…”

Section: Structures Of Sctl Cellmentioning

confidence: 99%

“…However, the DPW can provide a dominant H-field (wave impedance 0 ) and a dominant E-field (wave impedance ) [9]- [11]. Recently, the authors proposed a bent coupled transmission-line (BCTL) cell whose inner conductors are bent in the tapered section [12]. Though the BCTL cell can not provide an additional electric-field polarization in the transverse section such as the TTEM cell, 6P-TEM cell and circular TEM (CTEM) cell [13], it can provide high power usability for generating standard EM fields and high field uniformity.…”

Section: Introductionmentioning

confidence: 99%

“…Though the BCTL cell can not provide an additional electric-field polarization in the transverse section such as the TTEM cell, 6P-TEM cell and circular TEM (CTEM) cell [13], it can provide high power usability for generating standard EM fields and high field uniformity. However, the BCTL cell has some difficulties in the design of the tapered section for impedance matching [12]. The purpose of this paper is to provide a straight coupled transmission-line (SCTL) cell as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

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Straight coupled transmission-line cell for generating standard electromagnetic fields

Yun

Lee

Hwang

2002

IEEE Trans. Electromagn. Compat.

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A straight coupled transmission-line (SCTL) cell to generate standard EM fields with high field uniformity, broadband frequency range, and high field generation compared with conventional double-port waveguides, is presented in this paper. An SCTL cell is designed by using the Newton-Raphson method mixed with the moment method (MM). Measured electric fields and higher order mode-resonant frequencies inside the designed SCTL cell agree well with the calculated results by the MM, and by the Galerkin method, respectively.Index Terms-Cut-off frequency, EMC, field uniformity, standard EM field, TEM cell.

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Section: Structures Of Sctl Cellmentioning

confidence: 99%

“…Fig. 2 shows the calculated versus to maintain using the Newton-Raphson method (NRM) mixed with moment method (MM) [5], [12] when and are 91.4 cm and is 0.3 cm.…”

Section: Structures Of Sctl Cellmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Straight coupled transmission-line cell for generating standard electromagnetic fields

Yun

Lee

Hwang

2002

IEEE Trans. Electromagn. Compat.

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“…Fig. 2 shows the calculated versus the variation of to maintain the 50 characteristic impedance by using the Newton Raphson method mixed with the moment method [10], [11]. Here, both and are 1.1 m and the thickness of inner conductor is 0.003 m. Only Tippet [3] and Wilson [4] in the presented papers dealt with the cutoff frequencies in the asymmetric TEM cell.…”

Section: Introductionmentioning

confidence: 99%

Numerical solution of higher order mode cutoff frequencies in asymmetric TEM cells by Galerkin method

Yun

Lee

Kim

1999

IEEE Trans. Electromagn. Compat.

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The authors describe a Galerkin method (GM), which determines efficiently the basis functions satisfying the edge conditions and the size of the elements on the Neumann boundaries in this paper. The calculated higher order mode cutoff frequencies in both symmetric and asymmetric TEM cells by the GM are presented. The authors could then solve the technical debate for TE 12 -, TE 03 -, TM 11 -, and TM 12 -mode cutoff frequencies in the symmetric TEM cell. It is also shown that the measured resonant frequencies of a designed asymmetric TEM cell agree well with the predicted data by the GM.

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Higher-order modes for broadside-coupled striplines in a shield

2010

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[1] A mode-matching method is applied to broadside-coupled striplines in a shield to obtain a dispersion relation. Higher-order mode analyses are performed, and their cutoff frequencies are evaluated. Good agreement with existing solutions is demonstrated. Higher-order field characteristics are illustrated. The mode-matching model provides an efficient and stable means of analyzing broadside-coupled striplines in a shield.Citation: Eom, H. J., J. J. Kim, and J. S. Ock (2010), Higher-order modes for broadside-coupled striplines in a shield,

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Performance of coupled transmission line cell for generating standard EM fields

Cited by 14 publications

References 2 publications

Straight coupled transmission-line cell for generating standard electromagnetic fields

Straight coupled transmission-line cell for generating standard electromagnetic fields

Numerical solution of higher order mode cutoff frequencies in asymmetric TEM cells by Galerkin method

Higher-order modes for broadside-coupled striplines in a shield

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