Dietlein, C.
, Luukanen, A.
, Popovic, Z.
and Grossman, E.
(2007),
A W-band polarization converter and isolator, IEEE Transactions on Microwave Theory and Techniques, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32223
(Accessed April 24, 2024)
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A W-band polarization converter and isolator
Published
Author(s)
, A. Luukanen, Zoya Popovic,
Abstract
This paper presents a 95-GHz printed low-loss linear-to-circular polarizer designed as a component of an active direct-detection millimeter-wave imaging system. The periodic printed structure presents different reactances to the TE and TM polarizations, resulting in equal amplitude and phase quadrature upon transmission through four parallel gratings. The polarizer is measured in both a Gaussian beam system and a plane wave system, and demonstrates an axial ratio of 0.23 dB, polarization isolation of 38 dB, and transmission loss of 0.3 dB for normal incidence. The quarter-wave plate is characterized up to ±35 degrees} off the optical axis, and exhibits an axial ratio better than 1 dB up to ±17 degrees} off the optical axis.Citation
IEEE Transactions on Microwave Theory and Techniques
Volume
55
Issue
6
Pub Type
Journals
Download Paper
Keywords
millimeter wave devices, millimeter wave imaging, polarization
Citation
Created June 5, 2007, Updated October 12, 2021