Analysis and design of lumped-element quadrature couplers with lossy passive elements

Author

Ozis, Dicle ; Paramesh, Jeyanandh ; Allstot, David J.

Author_Institution

Dept. of Electr. Eng., Washington Univ., Seattle, WA

fYear

2006

fDate

21-24 May 2006

Lastpage

2320

Abstract

The analysis and design of lumped-element quadrature directional couplers is described for monolithic applications. The analysis is carried out using the fourfold symmetry of capacitively and inductively coupled hybrid circuits. S-parameter responses of these two types of couplers are compared when losses and other parasitic effects of typical on-chip passive elements are taken into account. The analysis provides analytical expressions that make it possible to determine the effects that each non-ideality has on overall circuit performance before circuit simulations are performed using a particular process design kit

Keywords

CMOS analogue integrated circuits; S-parameters; integrated circuit design; linear network synthesis; lumped parameter networks; microwave integrated circuits; millimetre wave directional couplers; monolithic integrated circuits; CMOS integrated circuits; S-parameter; capacitively coupled circuit; directional coupler; hybrid circuit; inductively coupled circuit; lossy passive element; lumped-element microwave circuit; lumped-element quadrature coupler; monolithic integrated circuits; on-chip passive element; CMOS technology; Circuit optimization; Circuit simulation; Directional couplers; Equations; Gallium arsenide; Impedance; Power transmission lines; Radio frequency; Scattering parameters; CMOS integrated circuits; couplers; lumped-element microwave circuits; monolithic integrated circuits; transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on

Conference_Location

Island of Kos

Print_ISBN

0-7803-9389-9

Type

conf

DOI

10.1109/ISCAS.2006.1693085

Filename

1693085