A 2-GHz quadrature hybrid implemented in CMOS technology.
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...
| Published in: | IEEE Journal of solid state circuits 38, 3 (2003). | 
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| Main Author: | |
| Format: | Article | 
| Language: | English | 
| Subjects: |