A MILLIMETER-WAVE MONOLITHIC LOAD SWITCHING TWIST REFLECTOR FOR COMPACT IMAGING CAMERAS

Authors
HUGUENIN GR MOORE EL BANDLA S NICHOLSON JJ
Citation
Gr. Huguenin et al., A MILLIMETER-WAVE MONOLITHIC LOAD SWITCHING TWIST REFLECTOR FOR COMPACT IMAGING CAMERAS, IEEE transactions on microwave theory and techniques, 44(12), 1996, pp. 2751-2757
Citations number
4
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE transactions on microwave theory and techniques → ACNP
ISSN journal
00189480
Volume
44
Issue
12
Year of publication
1996
Part
2
Pages
2751 - 2757
Database
ISI
SICI code
0018-9480(1996)44:12<2751:AMMLST>2.0.ZU;2-7
Abstract
A monolithic load switching twist reflector (LSTR) has been built and tested for use in 94 GHz passive imaging cameras. In this paper, we de scribe the LSTR component, which switches between the dual roles of lo ad comparison in a radiometer and reducing the length of the camera, R adiometric and quasioptical tests show that the array has an insertion loss of 0.25 dB and a switching ratio of greater than or equal to 20 dB, This active array of p-i-n diodes can replace the mechanical chopp ers often used in load comparison.