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Journal articles on the topic 'Wide band VCO'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Tlelo-Cuautle, Esteban, Perla Rubi Castañeda-Aviña, Rodolfo Trejo-Guerra, and Victor Hugo Carbajal-Gómez. "Design of a Wide-Band Voltage-Controlled Ring Oscillator Implemented in 180 nm CMOS Technology." Electronics 8, no. 10 (2019): 1156. http://dx.doi.org/10.3390/electronics8101156.

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The design of a wide-band voltage-controlled oscillator (VCO) modified as a VCO with programmable tail currents is introduced herein. The VCO is implemented by using CMOS current-mode logic stages, which are based on differential pairs that are connected in a ring topology. SPICE simulation results show that the VCO operates within the frequency ranges of 2.65–5.65 GHz, and when it is modified, the VCO with programmable tail currents operates between 1.38 GHz and 4.72 GHz. The design of the CMOS differential stage is detailed along with the symbolic approximation of its dominant pole, which is

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2

Psycharis, Ioannis Dimitrios, Vasileios Tsourtis, and Grigorios Kalivas. "A 60 GHz Class-C Wide Tuning-Range Two-Core VCO Utilizing a Gain-Boosting Frequency Doubling Technique and an Adaptive Bias Scheme for Robust Startup." Sensors 25, no. 3 (2025): 981. https://doi.org/10.3390/s25030981.

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This paper presents the design and the performance of a wide tuning-range millimeter-wave (mm-wave) two-core class-C 60 GHz VCO in 40 nm CMOS process, which can be integrated into wireless communication transceivers and radar sensors. The proposed architecture consists of a two-core 30 GHz fundamental VCO, a gain-boosted frequency doubler and an adaptive bias configuration. The two-core fundamental VCO structure achieves frequency generation in the vicinity of 30 GHz, where each VCO core targets a different frequency band. The two bands have sufficient overlap to accommodate for corner variati

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3

Feng, Wu Shiung, Chin I. Yeh, Ho Hsin Li, and Cheng Ming Tsao. "Ground-Adjustable Inductor for Wide-Tuning VCO Design." Applied Mechanics and Materials 256-259 (December 2012): 2373–78. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.2373.

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A wide-tuning range voltage-controlled oscillator (VCO) with adjustable ground-plate inductor for ultra-wide band (UWB) application is presented in this paper. The VCO was implemented by standard 90nm CMOS process at 1.2V supply voltage and power consumption of 6mW. The tuning range from 13.3 GHz to 15.6 GHz with phase noise between -99.98 and -115dBc/Hz@1MHz is obtained. The output power is around -8.7 to -9.6dBm and chip area of 0.77x0.62mm2.

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4

Agarwal, Neeraj, Neeru Agarwal, Chih-Wen Lu, and Masahito Oh-e. "A 33 MHz Fast-Locking PLL with Programmable VCO and Automatic Band Selection for Clock Generator Application." Electronics 10, no. 14 (2021): 1743. http://dx.doi.org/10.3390/electronics10141743.

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This paper presents a prototype of an auto-ranging phase-locked loop (PLL) with low jitter noise over a wide operating frequency range using the multiband programmable voltage-controlled oscillator (VCO) gain stage with automatic band selection. We successfully reduce the VCO gain (Kvco) and retain the desired frequency band. The proposed PLL comprises a prescaler, phase frequency detector (PFD), charge pump (CP), programmable VCO and automatic band selection circuit. The PLL prototype with all subblocks was implemented using the TSMC 0.18 μm 1P6M process. Contrary to conventional PLL architec

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5

Yun, Seok-Ju, Hui Dong Lee, Kwi-Dong Kim, Sang-Gug Lee, and Jong-Kee Kwon. "A Wide-Tuning Dual-Band Transformer-Based Complementary VCO." IEEE Microwave and Wireless Components Letters 20, no. 6 (2010): 340–42. http://dx.doi.org/10.1109/lmwc.2010.2047524.

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6

Ryu, Seonghan, Huijung Kim, Jounghyun Yim, et al. "Ka-band PHEMT MMIC VCO with wide tuning range." Microwave and Optical Technology Letters 39, no. 4 (2003): 333–36. http://dx.doi.org/10.1002/mop.11206.

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7

Hsu, Jung-Jen, Yao-Chian Lin, and Stephen J. H. Yang. "A 0.8 V Low-Power Wide-Tuning-Range CMOS VCO for 802.11ac and IoT C-Band Applications." Journal of Low Power Electronics and Applications 15, no. 2 (2025): 32. https://doi.org/10.3390/jlpea15020032.

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This paper presents a 0.8 V low-power CMOS voltage-controlled oscillator (VCO) with a wide tuning range, fabricated using a TSMC 0.18 μm process. The proposed design incorporates body-biasing techniques and an optimized varactor structure to achieve a tuning range of 1124 MHz (5.829–4.705 GHz) and low phase noise of −117.6 dBc/Hz at a 1 MHz offset. Operating at an ultra-low supply voltage of 0.8 V, the VCO consumes only 3.4 mW, demonstrating excellent power efficiency. A buffer circuit is also employed to enhance output symmetry and suppress flicker noise without introducing additional control

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8

Chang, Ho-Jun, SeungWoon Choi, and Tae-Yeoul Yun. "K -band CMOS VCO using a wide tuning range varactor." Microwave and Optical Technology Letters 54, no. 12 (2012): 2751–54. http://dx.doi.org/10.1002/mop.27164.

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9

Kao, Hsuan-Ling. "On-Chip Voltage-Controlled Oscillator Based on a Center-Tapped Switched Inductor Using GaN-on-SiC HEMT Technology." Electronics 10, no. 23 (2021): 2928. http://dx.doi.org/10.3390/electronics10232928.

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This study presents a voltage-controlled oscillator (VCO) in a cross-coupled pair configuration using a multi-tapped switched inductor with two switch-loaded transformers in 0.5 µm GaN technology. Two switch-loaded transformers are placed at the inner and outer portions of the multi-tapped inductor. All the switches are turned off to obtain the lowest sub-band. The outer transformer with three pairs of switches is turned on alternately to provide three sub-band modes. A pair of switches at the inner transformer provide a high-frequency band. Two switch-loaded transformers are turned on to prov

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10

NAKAMURA, Takahiro, Tomomitsu KITAMURA, Nobuhiro SHIRAMIZU, and Toru MASUDA. "A Wide-Tuning-Range VCO with Small VCO-Gain Variation for Multi-Band W-CDMA RFIC." IEICE Transactions on Electronics E96.C, no. 6 (2013): 790–95. http://dx.doi.org/10.1587/transele.e96.c.790.

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11

Kim, Young Gi, Jae Yeon Hwang, and Jong Deok Yoon. "A Fully Integrated Ku-band CMOS VCO with Wide Frequency Tuning." Journal of the Institute of Electronics and Information Engineers 51, no. 12 (2014): 83–89. http://dx.doi.org/10.5573/ieie.2014.51.12.083.

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12

Fong, N. H. W., J. O. Plouchart, N. Zamdmer, et al. "Design of wide-band cmos vco for multiband wireless lan applications." IEEE Journal of Solid-State Circuits 38, no. 8 (2003): 1333–42. http://dx.doi.org/10.1109/jssc.2003.814440.

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13

Ambulker, Sunanda, and Sangeeta Nakhate. "Wide tuning range low phase noise VCO for V‐band application." IET Microwaves, Antennas & Propagation 12, no. 5 (2018): 756–64. http://dx.doi.org/10.1049/iet-map.2017.0235.

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14

Jongsik Kim, Jaewook Shin, Seungsoo Kim, and Hyunchol Shin. "A Wide-Band CMOS LC VCO With Linearized Coarse Tuning Characteristics." IEEE Transactions on Circuits and Systems II: Express Briefs 55, no. 5 (2008): 399–403. http://dx.doi.org/10.1109/tcsii.2007.914896.

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15

Zhou, H. F., K. M. Shum, and C. H. Chan. "Wide locking range frequency tripler based on a dual-band VCO." Electronics Letters 56, no. 21 (2020): 1122–24. http://dx.doi.org/10.1049/el.2020.1795.

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16

Socher, E., and S. Jameson. "Wide tuning range W-band Colpitts VCO in 90 nm CMOS." Electronics Letters 47, no. 22 (2011): 1227. http://dx.doi.org/10.1049/el.2011.2581.

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17

MA, XUEPO, WEI ZHANG, and YANG LIU. "A FULLY INTEGRATED MULTI-BAND LCVCO BASED ON CMOS TECHNOLOGY." Journal of Circuits, Systems and Computers 19, no. 06 (2010): 1299–305. http://dx.doi.org/10.1142/s0218126610006694.

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In this paper, a cross-coupled complementary inductance–capacitance voltage controlled oscillator (LCVCO) with low phase noise and wide tuning range is presented. It has a multi-band topology and was fabricated with RF CMOS technology. For the purpose of lowering the K VCO and reducing the nonlinearities of varactors, the sizes of the varactors are set small. Also noise filtering technique is adopted to minimize up-conversion of the low frequency noise as well as down-conversion of the high frequency noise, thus the phase noise performance of the VCO is greatly improved. Simulation and experim

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18

Balodi, Deepak, Arunima Verma, and Ananta Govindacharyulu Paravastu. "Low power LC-voltage controlled oscillator with −140 dBc/Hz @ 1 MHz offset using on-chip inductor design in 0.13 µm RF-CMOS process for S-Band application." Circuit World 46, no. 1 (2019): 32–41. http://dx.doi.org/10.1108/cw-03-2019-0023.

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Purpose The paper aims to present the novel design approach for a low power LC-voltage-controlled oscillators (VCO) design with low phase noise that too targeted at the most sought band of Bluetooth applications. Owing to their crucial role in a wide variety of modern applications, VCO and phase-locked loop (PLL) frequency synthesizers have been the subject of extensive research in recent years. In fact, VCO is one of the key components being used in a modern PLL to provide local frequency signal since a few decades. The complicated synthesizer requirements imposed by cellular phone applicatio

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19

Hsu, Meng-Ting, Ying-Hsiang Huang, and Cheng-Chuan Chung. "Design of Wide Band CMOS VCO with Common Source Transformer Feedback Topology." Wireless Engineering and Technology 04, no. 01 (2013): 19–27. http://dx.doi.org/10.4236/wet.2013.41004.

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20

Kanar, Tumay, and Gabriel M. Rebeiz. "A 2-15 GHz VCO With Harmonic Cancellation for Wide-Band Systems." IEEE Microwave and Wireless Components Letters 26, no. 11 (2016): 933–35. http://dx.doi.org/10.1109/lmwc.2016.2615029.

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21

Dasgupta, Gopa, and Swapan K. Ray. "Frequency stabilization of an LM566 VCO used in wide-band FM generation." IEEE Transactions on Instrumentation and Measurement IM-35, no. 3 (1986): 360–62. http://dx.doi.org/10.1109/tim.1986.6499226.

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22

Chao, Yue, and Howard C. Luong. "Analysis and Design of Wide-Band Millimeter-Wave Transformer-Based VCO and ILFDs." IEEE Transactions on Circuits and Systems I: Regular Papers 63, no. 9 (2016): 1416–25. http://dx.doi.org/10.1109/tcsi.2016.2577683.

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23

Sánchez-Azqueta, C., J. Aguirre, C. Gimeno, C. Aldea, and S. Celma. "High-resolution wide-band LC-VCO for reliable operation in phase-locked loops." Microelectronics Reliability 63 (August 2016): 251–55. http://dx.doi.org/10.1016/j.microrel.2016.06.018.

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24

Nguyen, Tai Nghia, and Jong-Wook Lee. "Ultralow-Power Ku-Band Dual-Feedback Armstrong VCO With a Wide Tuning Range." IEEE Transactions on Circuits and Systems II: Express Briefs 59, no. 7 (2012): 394–98. http://dx.doi.org/10.1109/tcsii.2012.2198979.

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25

Mahalingam, Nagarajan, Kaixue Ma, Kiat Seng Yeo, and Wei Meng Lim. "$K$-band High-PAE Wide-Tuning-Range VCO Using Triple-Coupled $LC$ Tanks." IEEE Transactions on Circuits and Systems II: Express Briefs 60, no. 11 (2013): 736–40. http://dx.doi.org/10.1109/tcsii.2013.2281751.

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26

Huang, Jiwei, Zhigong Wang, Kuili Li, Zhengping Li та Yongping Wang. "A wide-band low phase noise LC-tuned VCO with constantKVCO/ωoscfor LTE PLL". Journal of Semiconductors 33, № 2 (2012): 025008. http://dx.doi.org/10.1088/1674-4926/33/2/025008.

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27

Kwak, Noh-Min, Hyeongjun Huh, Heeseong Jeong, and Kyuman Cho. "Wide-tuning-range K-band microwave-photonic VCO using an all-optical heterodyne scheme." Microwave and Optical Technology Letters 42, no. 1 (2004): 66–68. http://dx.doi.org/10.1002/mop.20209.

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28

Deng, Xiaoying, and Peiqi Tan. "An Ultra-Low-Power K-Band 22.2 GHz-to-26.9 GHz Current-Reuse VCO Using Dynamic Back-Gate-Biasing Technique." Electronics 10, no. 8 (2021): 889. http://dx.doi.org/10.3390/electronics10080889.

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An ultra-low-power K-band LC-VCO (voltage-controlled oscillator) with a wide tuning range is proposed in this paper. Based on the current-reuse topology, a dynamic back-gate-biasing technique is utilized to reduce power consumption and increase tuning range. With this technique, small dimension cross-coupled pairs are allowed, reducing parasitic capacitors and power consumption. Implemented in SMIC 55 nm 1P7M CMOS process, the proposed VCO achieves a frequency tuning range of 19.1% from 22.2 GHz to 26.9 GHz, consuming only 1.9 mW–2.1 mW from 1.2 V supply and occupying a core area of 0.043 mm2.

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29

Holisaz, Hamed, and Safieddin Safavi-Naeini. "A Low Noise D-Band VCO With a Wide Bandwidth and a Steady Output Power." IEEE Microwave and Wireless Components Letters 25, no. 11 (2015): 742–44. http://dx.doi.org/10.1109/lmwc.2015.2481083.

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30

Zhang, Jincan, Yuming Zhang, Hongliang Lü, et al. "A Ku-band wide-tuning-range high-output-power VCO in InGaP/GaAs HBT technology." Journal of Semiconductors 36, no. 6 (2015): 065010. http://dx.doi.org/10.1088/1674-4926/36/6/065010.

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31

ISSA, DALENDA BEN, ABDENNACEUR KACHOURI, and MOUNIR SAMET. "NEW CONCEPT OF 3.2–4.8 GHz IMPULSE GENERATOR FOR UWB TRANSMITTER." Journal of Circuits, Systems and Computers 20, no. 02 (2011): 313–27. http://dx.doi.org/10.1142/s021812661100727x.

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A new design of Ultra-Wide band (UWB) generator is described in this paper. The UWB impulse generator circuit is the most essential block in a mono-band UWB transmitter. The proposed ultra wide band impulse generator circuit utilizes the performances of the CMOS technology effectively, it is composed of a voltage controlled oscillator (VCO), and a rectangular pulse generator (RPG) and mixer. The RPG circuit consists of a frequency divider 1/128 circuit, time delay, N-inverters and AND gate function. The impulse UWB generator is based on the rectangular pulse modulated with the aim of generatin

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32

Wang, To-Po, and Cheng-Yu Chiang. "A low-power low-phase-noise wide-tuning-range K-band VCO in 0.18-µm CMOS." IEICE Electronics Express 8, no. 18 (2011): 1511–18. http://dx.doi.org/10.1587/elex.8.1511.

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33

Liou, W. R., T. H. Chen, M. L. Yeh, J. J. Ho, and G. E. Jan. "A low-power 2/5.8-GHz dual-wide-band CMOS LC-VCO with switched-inductor technique." International Journal of Electronics 94, no. 6 (2007): 623–32. http://dx.doi.org/10.1080/00207210701322105.

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34

Chiou, Hwann-Kaeo, Hsien-Jui Chen, Hsien-Yuan Liao, Shuw-Guann Lin, and Yin-Cheng Chang. "Design formula for band-switching capacitor array in wide tuning range low-phase-noise LC-VCO." Microelectronics Journal 39, no. 12 (2008): 1687–92. http://dx.doi.org/10.1016/j.mejo.2008.05.007.

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35

Sabaghi, Masoud, Saeid Marjani, and Abbas Majdabadi. "A Low Phase Noise, Low Power and Wide Tuning Range VCO with Filtering Technique in ISM Band." Circuits and Systems 07, no. 02 (2016): 51–57. http://dx.doi.org/10.4236/cs.2016.72006.

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36

Chang, Yu-Hsin, Yen-Chung Chiang, and Ching-Yuan Yang. "A V-Band Push-Push VCO With Wide Tuning Range Using $0.18~\mu{\rm m}$ CMOS Process." IEEE Microwave and Wireless Components Letters 25, no. 2 (2015): 115–17. http://dx.doi.org/10.1109/lmwc.2014.2372476.

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37

Mansour, Islam, Mohamed Aboualalaa, Adel Barakat, et al. "Analysis and Implementation of High-Q CT Inductor for Compact and Wide- Tuning Range Ku-Band VCO." IEEE Microwave and Wireless Components Letters 30, no. 8 (2020): 802–5. http://dx.doi.org/10.1109/lmwc.2020.3004753.

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38

To-Po Wang. "A fully integrated w-band push-push CMOS VCO with low phase noise and wide tuning range." IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 58, no. 7 (2011): 1307–19. http://dx.doi.org/10.1109/tuffc.2011.1951.

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39

Zhang, Ke, Shiwei Cheng, Xiaofang Zhou, Wenhong Li, and Ran Liu. "A wide band differentially switch-tuned CMOS monolithic quadrature VCO with a low Kvco and high linearity." Microelectronics Journal 40, no. 6 (2009): 881–86. http://dx.doi.org/10.1016/j.mejo.2009.01.007.

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40

PU, YoungGun, and Kang-Yoon LEE. "A Wide Band VCO with Automatic Frequency, Gain, and Two-Step Amplitude Calibration Loop for DTV Tuner Application." IEICE Transactions on Electronics E92-C, no. 12 (2009): 1496–503. http://dx.doi.org/10.1587/transele.e92.c.1496.

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41

TA, Tuan Thanh, Suguru KAMEDA, Tadashi TAKAGI, and Kazuo TSUBOUCHI. "A 5GHz Band Low Noise and Wide Tuning Range Si-CMOS VCO with a Novel Varactors Pair Circuit." IEICE Transactions on Electronics E93-C, no. 6 (2010): 755–62. http://dx.doi.org/10.1587/transele.e93.c.755.

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42

Chen, Hua, Renjie Gong, Xu Cheng, et al. "A 220–1100 MHz low phase-noise frequency synthesizer with wide-band VCO and selectable I/Q divider." Journal of Semiconductors 35, no. 12 (2014): 125006. http://dx.doi.org/10.1088/1674-4926/35/12/125006.

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43

Liu, Haiwen, Xiaowei Sun, and Zhengfan Li. "A VCO with Harmonic Suppressed and Output Power Improved Using Defected Ground Structure." Active and Passive Electronic Components 26, no. 4 (2003): 205–11. http://dx.doi.org/10.1080/0882751031000116106.

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In this paper, a novel defected ground structure (DGS) is proposed for suppressing harmonic and increasing the output power of a voltage-controlled oscillator (VCO) in microwave circuits. The DGS is formed with connecting in parallel two periodic structures which have different center frequencies (in a ratio of 2:3) of the stopband and provides the bandgap characteristic in certain frequency bands. Simulated and experimental results show that the microstrip line with DGS has a wide low-pass band for the fundamental frequency and a stopband for the second harmonic with good performance. To eval

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44

Chou, Min-Li, Hsien-Chin Chiu, and Fan-Hsiu Huang. "A Ka -band VCO with low phase noise and wide tuning range using a 90-nm dual-gate device." Microwave and Optical Technology Letters 58, no. 3 (2016): 502–5. http://dx.doi.org/10.1002/mop.29605.

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45

Han, Jae-Soub, Tae-Hyeok Eom, Seong-Wook Choi, et al. "A Reference-Sampling Based Calibration-Free Fractional-N PLL with a PI-Linked Sampling Clock Generator." Sensors 21, no. 20 (2021): 6824. http://dx.doi.org/10.3390/s21206824.

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Sampling-based PLLs have become a new research trend due to the possibility of removing the frequency divider (FDIV) from the feedback path, where the FDIV increases the contribution of in-band noise by the factor of dividing ratio square (N2). Between two possible sampling methods, sub-sampling and reference-sampling, the latter provides a relatively wide locking range, as the slower input reference signal is sampled with the faster VCO output signal. However, removal of FDIV makes the PLL not feasible to implement fractional-N operation based on varying divider ratios through random sequence

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46

HSIAO, SEN-WEN, and MATTHEW CHUNG-HIN LEUNG. "A PROGRAMMABLE 1-V CMOS 65 nm FREQUENCY SYNTHESIZER DESIGN IN 60 GHz WIRELESS TRANSCEIVER." Journal of Circuits, Systems and Computers 21, no. 06 (2012): 1240009. http://dx.doi.org/10.1142/s0218126612400099.

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The paper proposes a CMOS 65 nm 24 GHz wide-band frequency synthesizer with programmability on acquisition speed and supply voltage for low power application in 60 GHz millimeter-wave (mmW) wireless transceiver. The role of mmW phase-locked loop (PLL) is significant for supporting 7 GHz bandwidth across the four channels in IEEE 802.15.3c. The PLL is introduced with consideration of system specifications, as well as the design of individual block. In order to maintain the dynamic behavior of a PLL, two control parameters of its loop transfer function are used for programmability, including the

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47

Basaligheh, Ali, Parvaneh Saffari, Wolfgang Winkler, and Kambiz Moez. "A Wide Tuning Range, Low Phase Noise, and Area Efficient Dual-Band Millimeter-Wave CMOS VCO Based on Switching Cores." IEEE Transactions on Circuits and Systems I: Regular Papers 66, no. 8 (2019): 2888–97. http://dx.doi.org/10.1109/tcsi.2019.2901253.

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48

Nakamura, Takahiro, Toru Masuda, Katsuyoshi Washio, and Hiroshi Kondoh. "A Push-Push VCO With 13.9-GHz Wide Tuning Range Using Loop-Ground Transmission Line for Full-Band 60-GHz Transceiver." IEEE Journal of Solid-State Circuits 47, no. 6 (2012): 1267–77. http://dx.doi.org/10.1109/jssc.2012.2187470.

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49

Wijaya, R. Indra, Purwoko Adhi, Asep Yudi Hercuadi, Dadan Muliawandana, and Ros Sariningrum. "Radar Penembus Dinding UWB-FMCW 500-3000 MHz." Jurnal Elektronika dan Telekomunikasi 14, no. 1 (2016): 1. http://dx.doi.org/10.14203/jet.v14.1-7.

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Radar penembus dinding memiliki potensi untuk dapat digunakan dalam penanganan pasca bencana dan gangguan keamanan.Tulisan ini membahas hasil perancangan dan pembuatan sistem Radar Penembus Dinding Ultra Wide Band Frequency Modulated Continous Wave (UWB-FMCW) yang digunakan untuk mendeteksi keberadaan suatu objek di balik dinding. Dalam penelitian ini dikembangkan pembangkit chirp UWB menggunakan kombinasi DDS dan VCO sebagai komponen utama pembangkit gelombang FMCW untuk mendapatkan linearitas yang tinggi, merealisasikan tranceiver dalam arsitektur homodyne, mengembangkan modul akuisisi, sert

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50

Chen, Zhe, Debin Hou, Ji-Xin Chen, et al. "A K-Band FMCW Frequency Synthesizer Using Q-Boosted Switched Inductor VCO in SiGe BiCMOS for 77 GHz Radar Applications." Electronics 9, no. 11 (2020): 1933. http://dx.doi.org/10.3390/electronics9111933.

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In this article, a fractional-N phase-locked loop (PLL) with integrated chirp generation circuit block for a 76~81 GHz frequency-modulated continuous-wave (FMCW) radar system is presented. Thanks to the switched inductor voltage-controlled oscillator (VCO) topology, the linearity, phase noise, chirp bandwidth, and chirp rate of the FMCW synthesizer can be optimized for the short-range radar (SRR) and long-range radar (LRR) applications, with switch at ON/OFF states, respectively, according to different requirements and concerns. In this way, the proposed FMCW synthesizer shows improved phase n

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