NDLI: 5E-4 A Matrix Method for Modeling Electrical Crosstalk Applied to Ultrasonic Imaging Probes Using Micro-Miniature Ribbon Cable

Content Provider	IEEE Xplore Digital Library
Author	Oakley, C. Zipparo, M. Patwa, D. Mueller, J.
Copyright Year	2006
Description	Author affiliation: Tetrad Corp., Englewood, CO (Oakley, C.; Zipparo, M.; Patwa, D.)
Abstract	Crosstalk is an important phenomenon that can negatively affect the performance of an ultrasound array coupled to an imaging system. This paper presents a means of using cable measurements to predict the effect of electrical crosstalk between the intended array element and neighboring elements, with the cable terminated by system electronics at the near end. The KLM model is used to predict the array operation, and directivity measurements for a 6.5 MHz array without a cable show a -6 dB angular response of 70 deg. The addition of a cable and its associated crosstalk causes the effective radiating aperture to become larger and the angular response less. The termination condition at the system end effects how the array and cable interact to produce crosstalk. The signal level measured for a miniature phased array and 1.5 m of ribbon cable with adjacent elements open at the system end was 2.1 dB higher than with adjacent elements grounded. Similarly, the acceptance angle was found to be only 45 degrees with adjacent elements open and 55 degrees with adjacents shorted. Comparisons of measurements for various combinations of array, cable, and system termination conditions against modeled equivalents show excellent agreement. Crosstalk effects on the quality of the formed beam are discussed
Starting Page	480
Ending Page	484
File Size	305213
Page Count	5
File Format	PDF
ISBN	1424402018
ISSN	10510117
DOI	10.1109/ULTSYM.2006.128
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-02
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Crosstalk Ultrasonic imaging Probes Scattering parameters Cables Ultrasonic variables measurement Phased arrays Ultrasonic transducers Image quality Transmission line matrix methods
Content Type	Text
Resource Type	Article

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