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X-Parameter Characterization of TC SAW Filters with Enhanced Dynamic Range

Title data

Akstaller, Wolfgang ; Musolff, Christian ; Weigel, Robert ; Hagelauer, Amelie:
X-Parameter Characterization of TC SAW Filters with Enhanced Dynamic Range.
In: IEEE Transactions on Microwave Theory and Techniques. Vol. 65 (2017) Issue 11 . - pp. 4541-4549.
ISSN 0018-9480

Abstract in another language

Increasing the integration of radio frequency frontend modules for mobile communication devices results in rising power densities within the components. Additionally, advanced communication techniques demand for more frequency bands to be supported. As a result, the probability of significant nonlinear emissions disturbing adjacent channels increases, and accurate modeling of the device’s response is required. The X-parameter-based modeling approach can be applied to this problem. In this paper, a measurement setup, which is based on a nonlinear vector network analyzer, is utilized in order to characterize a surface acoustic wave (SAW) filter. Due to the low power levels of the generated higher order harmonics and the demand for a power sweep, a high dynamic range (DR) is required. The application of frequency selective attenuators enables an increase of the effective DR by more than 40 dB. Based on this improved measurement setup, single-tone and two-tone X-parameter models of the SAW filter are created and evaluated for their ability to predict intermodulation distortion (IMD). Classic, scalar IMD measurements are used as a reference for the assessment of capabilities and limitations of both X-parameter approaches.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Attenuators; Frequency measurement; Harmonic analysis; Mathematical model; Power harmonic filters; Receivers; Surface acoustic waves; Intermodulation distortion (IMD); X-parameter; nonlinearity; surface acoustic wave (SAW) filter
Institutions of the University: Faculties > Faculty of Engineering Science > Former Professors > Chair Communication Electronics - Univ.-Prof. Dr.-Ing. Amélie Marietta Hagelauer
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Communication Electronics
Faculties > Faculty of Engineering Science > Former Professors
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 16 Oct 2019 10:39
Last Modified: 16 Oct 2019 10:39