Abstract
We present analysis, optimization, design and characterization of an integrated passive analog phase shifter at 24 GHz in a commercially available 45 nm RF-CMOS process. The design is based on a well-known RC bridge topology, which was optimized for maximum phase shift and minimal amplitude response variation versus phase and frequency. Phase is controlled by varying DC voltage on a varactor, resulting in 60° maximum phase shift with 0.1 dB amplitude variation at 24 GHz. The size of the phase shifter circuit excluding pads and input/output buffers is 40×50 μm2.
Original language | English |
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Pages (from-to) | 1143-1150 |
Number of pages | 8 |
Journal | Microelectronics Journal |
Volume | 42 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2011 |
Keywords
- CMOS analog integrated circuits
- Passive phase shifters
- Phased arrays
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Electrical and Electronic Engineering