A concurrent dual-band and dual-mode frequency synthesizer for radar systems
Journal
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Journal Volume
26
Journal Issue
5
Pages
945-957
Date Issued
2018
Author(s)
Abstract
A simultaneous dual-band dual-waveform frequency synthesizer suitable for radar applications is presented. By using a K-band integer-N phase-locked loop (PLL) in conjunction with a W-band frequency modulation loop, a K-band sinusoidal carrier and W-band frequency-modulated continuous-wave frequency chirp can be generated concurrently. Due to the single PLL architecture for dual-band signal generation, additional loop filter, phase frequency detector, and dividers are no longer required for reduced chip area and power consumption. Fabricated in a 90-nm CMOS process, the proposed circuit occupies an area of 1.26 mm × 1.675 mm and consumes a dc power of 67 mW from a supply voltage of 1.2 V.
SDGs
Type
journal article