Title :
Si MMIC quadrature hybrid coupler for 1.35 GHz
Author :
Abele, P. ; Behammer, D. ; Erben, U. ; Meilchen, M. ; Maier, P. ; Schad, K.-B. ; Sonmez, E. ; Schumacher, Hermann
Author_Institution :
Ulm Univ., Germany
Abstract :
In this paper a Si MMIC (Monolithic Microwave Integrated Circuit) quadrature hybrid coupler with impedance transformation from 50 /spl Omega/ to 130 /spl Omega/ at 1.35 GHz is described. The MMIC makes use of spiral inductors and MIM (Metal-Insulator-Metal) capacitors. The impedance transformation makes it necessary to use a wide range of inductances (3.73 nH... 17.03 nH). The technology used for realization of the MMICs is shown. Finally, the measurements are compared with simulations and the insertion loss is discussed.
Keywords :
MMIC; UHF integrated circuits; coupled circuits; elemental semiconductors; impedance convertors; lumped parameter networks; silicon; 1.35 GHz; MIM capacitors; Si; Si MMIC; impedance transformation; insertion loss; monolithic microwave IC; quadrature hybrid coupler; spiral inductors; Coupling circuits; Hybrid integrated circuits; Impedance; Inductors; MIM capacitors; MMICs; Metal-insulator structures; Microwave integrated circuits; Monolithic integrated circuits; Spirals;
Conference_Titel :
Silicon Monolithic Integrated Circuits in RF Systems, 2000. Digest of Papers. 2000 Topical Meeting on
Conference_Location :
Garmisch, Germany
Print_ISBN :
0-7803-6255-1
DOI :
10.1109/SMIC.2000.844304
