Distributed analog phase shifters with low insertion loss

Citation
As. Nagra et Ra. York, Distributed analog phase shifters with low insertion loss, IEEE MICR T, 47(9), 1999, pp. 1705-1711
Citations number
10
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN journal
00189480 → ACNP
Volume
47
Issue
9
Year of publication
1999
Part
1
Pages
1705 - 1711
Database
ISI
SICI code
0018-9480(199909)47:9<1705:DAPSWL>2.0.ZU;2-M
Abstract
This paper describes the design and fabrication of distributed analog phase -shifter circuits. The phase shifters consist of coplanar-waveguide (CPW) l ines that are periodically loaded with varactor diodes, The circuits are fa bricated on GaAs using standard monolithic processing techniques. The phase velocity on these varactor diode-loaded CPW lines is a function of applied reverse bias, thus resulting in analog phase-shifting circuits, Optimally designed circuits exhibit 0 degrees-360 degrees phase shift at 20 GHz with a maximum insertion loss (IL) of 4.2 dB, To the best of our knowledge, this is the lowest reported IL for a solid-state analog phase shifter operating at 20 GHz.