DocumentCode
1157030
Title
A 2-GHz quadrature hybrid implemented in CMOS technology
Author
Frye, Robert C. ; Kapur, Sharad ; Melville, Robert C.
Author_Institution
Agere Syst., Murray Hill, NJ, USA
Volume
38
Issue
3
fYear
2003
fDate
3/1/2003 12:00:00 AM
Firstpage
550
Lastpage
555
Abstract
We have derived a lumped-element circuit from its coupled line counterpart for a quadrature hybrid coupler. We discuss the uses, design, and characteristics of such circuits in CMOS technology. We show measured characteristics of an example 50-Ω 2-GHz coupler with 65 dB of image rejection, 22 dB of directivity, and a 4.7-dB noise figure.
Keywords
CMOS integrated circuits; UHF integrated circuits; coupled circuits; directional couplers; lumped parameter networks; 2 GHz; 4.7 dB; 50 ohm; CMOS technology; capacitor network; coupled-inductor pair; directional couplers; directivity; image rejection; lumped-element circuit; quadrature hybrid coupler; CMOS technology; Coupling circuits; Directional couplers; Distributed parameter circuits; Frequency; Impedance; Inductors; Mutual coupling; Prototypes; Resonance;
fLanguage
English
Journal_Title
Solid-State Circuits, IEEE Journal of
Publisher
ieee
ISSN
0018-9200
Type
jour
DOI
10.1109/JSSC.2002.808287
Filename
1183871
Link To Document