LC-Tank Colpitts Injection-Locked Frequency Divider With Record Locking Range

2008 ◽  
Vol 18 (8) ◽  
pp. 560-562 ◽  
Author(s):  
S.-L. Jang ◽  
S.-H. Huang ◽  
C.-F. Lee ◽  
M.-H. Juang
Keyword(s):  
Frequency Divider ◽  
Locking Range ◽  
Lc Tank

An LC-tank injection locked frequency divider with record locking range percentage

2008 ◽  
Vol 50 (3) ◽  
pp. 806-809
Author(s):  
Sheng-Lyang Jang ◽  
Fei-Hung Chen ◽  
Chien-Feng Lee ◽  
M.-H. Juang
Keyword(s):  
Frequency Divider ◽  
Locking Range ◽  
Lc Tank

Low-voltage wide-locking range LC-tank divide-by-3 injection-locked frequency divider

2013 ◽  
Vol 1 (2) ◽  
pp. 62-68
Author(s):  
Sheng-Lyang Jang ◽  
Jhin-Fang Huang ◽  
Chong-Wei Huang ◽  
Ching-Wen Hsue ◽  
Chia-Wei Chang
Keyword(s):  
Low Voltage ◽  
Frequency Divider ◽  
Locking Range ◽  
Wide Locking Range ◽  
Lc Tank

A Wide Locking Range and Low Power Divide-by-2/3 LC Injection-Locked Frequency Divider

2015 ◽  
Vol 25 (02) ◽  
pp. 1650013 ◽  
Author(s):  
Wanhang Gao ◽  
Wei Zhang ◽  
Yanyan Liu
Keyword(s):  
Supply Voltage ◽  
Frequency Divider ◽  
Cmos Process ◽  
Incident Power ◽  
Nmos Transistor ◽  
The Core ◽  
Locking Range ◽  
In Series ◽  
Wide Locking Range ◽  
Lc Tank

A direct divide-by-2/3 LC injection-locked frequency divider (ILFD) is presented in this paper. The proposed ILFD circuit is based on a CMOS LC tank oscillator coupled with an injection NMOS transistor in series with an inductor. Together with body-biased technique and current-reused topology, the locking range of the ILFD is improved and the power consumption is reduced. The circuit is implemented in a 0.18[Formula: see text][Formula: see text]m standard RF CMOS process. At the incident power of 0[Formula: see text]dBm, the measured locking range of the divide-by-2 and divide-by-3 modes are from 5.37[Formula: see text]GHz to 7.68 (8.07[Formula: see text]GHz to 11.4[Formula: see text]GHz) GHz, and the core circuit without buffers consumes 3[Formula: see text]mW at the supply voltage of 1.5[Formula: see text]V. The chip only occupies [Formula: see text] without the pads and the buffers.

scholarly journals An 18.8–33.9 GHz, 2.26 mW Current-Reuse Injection-Locked Frequency Divider for Radar Sensor Applications

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2551
Author(s):  
Kwang-Il Oh ◽  
Goo-Han Ko ◽  
Jeong-Geun Kim ◽  
Donghyun Baek
Keyword(s):  
Supply Voltage ◽  
Cmos Technology ◽  
Frequency Divider ◽  
Oxide Semiconductor ◽  
Center Frequency ◽  
Radar Sensor ◽  
Frequency Locking ◽  
Current Reuse ◽  
Sensor Applications ◽  
Locking Range

An 18.8–33.9 GHz, 2.26 mW current-reuse (CR) injection-locked frequency divider (ILFD) for radar sensor applications is presented in this paper. A fourth-order resonator is designed using a transformer with a distributed inductor for wideband operating of the ILFD. The CR core is employed to reduce the power consumption compared to conventional cross-coupled pair ILFDs. The targeted input center frequency is 24 GHz for radar application. The self-oscillated frequency of the proposed CR-ILFD is 14.08 GHz. The input frequency locking range is from 18.8 to 33.8 GHz (57%) at an injection power of 0 dBm without a capacitor bank or varactors. The proposed CR-ILFD consumes 2.26 mW of power from a 1 V supply voltage. The entire die size is 0.75 mm × 0.45 mm. This CR-ILFD is implemented in a 65 nm complementary metal-oxide semiconductor (CMOS) technology.

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