Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: An Interferometric Approach To Vector Network Analysis At W-Band
Author: H. Brian Sequeira
Source: 1985 Measurement Science Conference
Year Published: 1985
Abstract: The design, construction, and performance of a Wband waveguide vector network analyzer are described. The heart of the instrument is a waveguide interferometer, which enables a comparison of the power emerging from the device-undertest (DUT) with a reference standard. Thus, the reflection/transmission coefficient of the DUT can be determined at a given frequency. An inherently wideband reference condition can be established by equalizing the lengths of the test and reference arms of the analyzer, but achieving this requires special attention to the specification and the physical coupling of the component parts. The requisite procedures for component specification and assembly are described. Experimental data indicate that amplitude and phase tracking between the interferometer arms are within 1.2 dB and +8 degrees, respectively, over a frequency range of 88 GHz to 99 GHz. Sample measurements at 94 GHz are presented to indicate the resolution, repeatability, and dynamic range possible with the source-detector combination currently used. Some performance limitations and possible modifications for performance improvement are also discussed.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.