Comments on "Measuring the impedance of balanced antennas by an s-parameter method"

Kaldjob, E.B.; Geck, Bernd; Eul, H.

doi:10.1109/map.2008.4768935

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…It is also interesting to notice that if the device is also floating, as the balanced antenna discussed in [10,19] (i.e., S cc = 1 and |S| = S dd ), Γ d calculated by means of (15) results in an indetermination. This result was previously mentioned in [20], but now by using (5) the indetermination is naturally solved and Γ d results in S dd .…”

Section: Mixed-mode Driving Conditionssupporting

confidence: 64%

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Mixed-Mode Impedance and Reflection Coefficient of Two-Port Devices

Carrasco¹,

Sieiro²,

López-Villegas³

et al. 2012

PIER

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Abstract-From the point of view of mixed-mode scattering parameters, S mm , a two-port device can be excited using different driving conditions. Each condition leads to a particular set of input reflection and input impedance coefficient definitions that should be carefully applied depending on the type of excitation and symmetry of the two-port device. Therefore, the aim of this paper is to explain the general analytic procedure for the evaluation of such reflection and impedance coefficients in terms of mixed-mode scattering parameters. Moreover, the driving of a two-port device as a one-port device is explained as a particular case of a two-port mixed-mode excitation using a given set of mixed-mode loads. The theory is applied to the evaluation of the quality factor, Q, of symmetrical and nonsymmetrical inductors.

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Section: Mixed-mode Driving Conditionssupporting

confidence: 64%

“…Note that for a symmetric and reciprocal two-port device (i.e., S dc = S cd = 0), (20) results in a 2 = −a 1 . Otherwise, the ingoing waves are different at each port, and such difference depends on S cc and S cd which convey a common-mode conversion.…”

Section: Mixed-mode Driving Conditionsmentioning

confidence: 99%