Registration for our Spring Short Course is now open!

NSI-MI Technologies cordially invites you and your colleagues to attend our Annual Spring Short Course at our Los Angeles, CA facility. This course will cover the theoretical and practical aspects of near-field, far-field, and compact range antenna testing. The presenters of this course have been specifically selected to provide a wide expertise base covering theory, application, software and instrumentation aspects of antenna testing.

Last day for registration: April 11, 2023

Course Price: $3,750
Course Location: 19730 Magellan Dr., Torrance, CA 90502 USA

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Schedule

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Tuesday - April 25

Wednesday - April 26

Thursday - April 27

Friday - April 28

Our premier staff of technical experts will cover a wide range of introductory and advanced topics related to antenna measurements, near-field theory, and compact ranges through pre-recorded lectures that you can access anytime between September 13–October 8. Register for the full course or choose the bundle that is right for you. A live Q&A scheduled September 27–30 will give you a chance to discuss and ask questions to the instructors.

AMETEK strengthens their test and measurement platform by acquiring NSI-MI.

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Our premier staff of technical experts will cover a wide range of introductory and advanced topics related to antenna measurements, near-field theory, and compact ranges through pre-recorded lectures that you can access anytime between March 22 – April 9. Register for the full course or choose the bundle that is right for you. A live Q&A scheduled April 5 – 7 will give you a chance to discuss and ask questions to the instructors.

Authors: Clive Parini, Stuart Gregson, John McCormick, Daniël Janse van Rensburg, Thomas Eibert

We are thrilled to announce the publication of Daniël Janse van Rensburg's second expanded edition of his book, "Theory and Practice of Modern Antenna Range Measurements", Volumes 1 & 2!

This two-volume book provides a comprehensive introduction and explanation of both the theory and practice of all forms of modern antenna measurements, from basic assumptions to detailed application scenarios.

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Authors: Vince Rodriguez, Zhong Chen
Publication: AMTA 2020
Available on November 2, 2020 at AMTA 2020 Virtual Symposium

Abstract—There have been a number of numerical analyses of RF absorber. These however, tend to focus on the reflectivity of the material not on the radar cross section (RCS) that it presents. Brumley studied the RCS of RF absorbers as a way to estimate the background RCS of anechoic ranges [1]. The study was done empirically, doing measurements of the RF absorber, and looking at the RCS of different pyramids, with and without paint. Brumley presents some potential ways of improving the RCS signature of the range thus reducing the background RCS of the site. In this paper the suggestions presented by Brumley are revisited. Specifically, his recommendation for the so-called twisted pyramid configuration which he was unable to measure due to the lack of absorber for him to use in the test. In addition to the twisted pyramid, Brumley’s approach of inserting smaller pyramids in the valleys of a larger pyramidal arrangement to reduce the edges parallel to the incoming wave are also presented. The numerical studies are done using time domain techniques as well as frequency domain techniques. The results validate the data and the suggestions presented in [1]

[1] S. A. Brumley, "Improving the Performance of Anechoic Absorbers," in Proceedings of the 10th Annual meeting and Symposium of teh Antenna Measurement techniques Association (AMTA 1988), Atlanta, GA , Sep 12-16, 1988.