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Topic · Electrical and Electronic Engineering

Advancements in PLL and VCO Technologies

Advancements in PLL and VCO Technologies is a research topic within Electrical and Electronic Engineering. Science Explorer counts 23k research works in it since 1950. 9.6% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the design, analysis, and optimization of phase-locked loops (PLLs) and related components in high-speed circuits. Topics include frequency synthesizers, time-to-digital converters, jitter analysis, digital PLLs, charge pumps, clock recovery techniques, delta-sigma modulators, and their application in high-speed communication systems.

  • Phase-Locked Loops
  • Frequency Synthesizer
  • Time-to-Digital Converter
  • CMOS Technology
  • Jitter Analysis
  • Digital PLL
  • Charge Pump
  • Clock Recovery
  • Delta-Sigma Modulator
  • High-Speed Communication
Research works
23k
fractional, since 1950
In the world top 10%
2.2k
per year above
Top-10% rate
9.6%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
-21%
the tick is no change

Which countries lead Advancements in PLL and VCO Technologies research?

By volume, China and India publish the most (738 and 311 works in 2022–2025).

By volume, 2022–2025

  1. 1 China 738 works
  2. 2 India 311 works
  3. 3 United States 240 works
  4. 4 South Korea 179 works
  5. 5 Germany 102 works
  6. 6 Taiwan 97 works
  7. 7 Japan 72 works
  8. 8 Italy 67 works
  9. 9 Canada 39 works
  10. 10 France 35 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 39.2%India: 16.6%United States: 12.7%South Korea: 9.5%6 others listed: 22.0%39%largest
China738 · 39.2%India311 · 16.6%United States240 · 12.7%South Korea179 · 9.5%6 others listed413 · 22.0%

Shares of the rows listed above, not of the whole node.

Which institutions lead Advancements in PLL and VCO Technologies research?

By volume in 2022–2025, University of Electronic Science and Technology of China publishes the most Advancements in PLL and VCO Technologies research, followed by Xidian University and Tsinghua University.

By volume, 2022–2025

  1. 1 University of Electronic Science and Technology of ChinaChina 41 works
  2. 2 Xidian UniversityChina 37 works
  3. 3 Tsinghua UniversityChina 33 works
  4. 4 Southeast UniversityChina 30 works
  5. 5 Samsung (South Korea)South Korea 27 works
  6. 6 University of Science and Technology of ChinaChina 24 works
  7. 7 Fudan UniversityChina 21 works
  8. 8 Chinese Academy of SciencesChina 19 works
  9. 9 Seoul National UniversitySouth Korea 17 works
  10. 10 Politecnico di MilanoItaly 17 works

Where is Advancements in PLL and VCO Technologies research done?

The largest centres of Advancements in PLL and VCO Technologies research in 2022–2025 are Beijing (China), Seoul (South Korea), Xi'an (China) and Shanghai (China).

Largest cities, 2022–2025

  1. 1 Beijing China 180 works
  2. 2 Seoul South Korea 115 works
  3. 3 Xi'an China 70 works
  4. 4 Shanghai China 68 works
  5. 5 Nanjing China 64 works
  6. 6 Chengdu China 53 works
  7. 7 Hefei China 41 works
  8. 8 Taipei Taiwan 41 works
  9. 9 Tokyo Japan 36 works
  10. 10 Guangzhou China 36 works
See Advancements in PLL and VCO Technologies on the map

Where is the best place to study Advancements in PLL and VCO Technologies?

Among universities, judged by research, Politecnico di Milano, Tsinghua University and University College Dublin score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%10%20%mean 7.04%fractional works in this node (log) →share in the world top 10% →Politecnico di Milano: 17, 12.2%Tsinghua University: 33, 11.6%University College Dublin: 14, 2.6%University of Macau: 12, 4.1%Korea Advanced Institute of Science and Technology: 13, 11.6%Seoul National University: 17, 7.8%University of Electronic Science and Technology of China: 41, 2.6%Xidian University: 37, 0.9%KU Leuven: 10, 16.6%Southeast University: 30, 0.4%Politecnico di MilanoTsinghua UniversityUniversity of MacauUniversity College D…
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1 Politecnico di MilanoItaly 61.712.2%10.7×17 -21.9%
2 Tsinghua UniversityChina 58.911.6%7.4×33 -14.0%
3 University College DublinIreland 56.82.6%14.4×14 +350.9%
4 University of MacauMacau 56.34.1%15.7×12 +111.9%
5 Korea Advanced Institute of Science and TechnologySouth Korea 56.211.6%12.3×13 -25.1%
6 Seoul National UniversitySouth Korea 55.57.8%9.6×17 +28.8%
7 University of Electronic Science and Technology of ChinaChina 53.92.6%15.8×41 -12.1%
8 Xidian UniversityChina 51.50.9%22.0×37 +25.3%
9 KU LeuvenBelgium 49.116.6%5.0×10 -9.7%
10 Southeast UniversityChina 46.10.4%9.8×30 -17.8%

Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.

Is Advancements in PLL and VCO Technologies research growing?

Output in 2018–2022 was 21% lower than in 2013–2017, peaking in 2002.

19801990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.