Paper Info
Title
A Design of Small Area, 0.95 mW, 612-1152 MHz Open Loop Injection-Locked Frequency Multiplier for IoT Sensor Applications.
Abstract
This paper presents a 612-1152 MHz Injection-Locked Frequency Multiplier (ILFM). The proposed ILFM is used to send an input signal to a receiver in only the I/Q mismatch calibration mode. Adopting a Phase-Locked Loop (PLL) to calibrate the receiver places a burden on this system because of the additional area and power consumption that is required. Instead of the PLL, to satisfy high-frequency, low-jitter and low-area requirements, a Ring Oscillator is adopted in the system. The free-running frequency of the ILFM is automatically and digitally calibrated to reflect the frequency of the injected signal from the harmonics of the reference clock. To control the frequency of the ILFM, the load current is digitally tuned with a 6-bit digital control signal. The proposed ILFM locks to the target frequency using a digitally controlled Frequency Locked Loop (FLL). This chip is fabricated using 1-poly 6-metal 0.18 mu m CMOS and has achieved the wide tuning range of 612-1152 MHz. The power consumption is 0.95 mW from a supply voltage of 1.8 V. The measured phase noise of the ILFM is -108 dBc/Hz at a 1 MHz offset.
Year
DOI
Venue
2018
10.3390/s18061777
SENSORS
Keywords
Field
DocType
injection locked frequency multiplier,frequency locked loop (FLL),phase noise
Internet of Things,Injection locked,Phase noise,Electronic engineering,Frequency multiplier,Engineering,Open-loop controller
Journal
Volume
Issue
Citations 
18
6.0
0
PageRank 
References 
Authors
0.34
9
11
Name
Order
Citations
PageRank
SungJin Kim164.62
Dong-Gyu Kim27710.15
Chanho Kim3835.57
dongsoo lee4115.40
Behnam Samadpoor Rikan555.65
Younggun Pu6128.04
Sang-Sun Yoo7228.27
Minjae Lee856595.62
Keum-Cheol Hwang9208.11
Youngoo Yang107921.71
Kang-yoon Lee1115254.43