F. Schäfer

518 total citations
27 papers, 384 citations indexed

About

F. Schäfer is a scholar working on Electrical and Electronic Engineering, Astronomy and Astrophysics and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, F. Schäfer has authored 27 papers receiving a total of 384 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Electrical and Electronic Engineering, 11 papers in Astronomy and Astrophysics and 8 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in F. Schäfer's work include Radio Frequency Integrated Circuit Design (12 papers), Microwave Engineering and Waveguides (8 papers) and Superconducting and THz Device Technology (7 papers). F. Schäfer is often cited by papers focused on Radio Frequency Integrated Circuit Design (12 papers), Microwave Engineering and Waveguides (8 papers) and Superconducting and THz Device Technology (7 papers). F. Schäfer collaborates with scholars based in Germany, Spain and France. F. Schäfer's co-authors include Arnulf Leuther, M. Seelmann‐Eggebert, E. F. van Dishoeck, Ralf Conrad, R. Stark, G. de Lange, M. Schlechtweg, O. Ambacher, Ingmar Kallfass and S. C. Beck and has published in prestigious journals such as Journal of Applied Physics, The Astrophysical Journal and IEEE Access.

In The Last Decade

F. Schäfer

26 papers receiving 368 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
F. Schäfer Germany 11 211 194 112 96 48 27 384
D. Rabanus Germany 8 105 0.5× 121 0.6× 94 0.8× 59 0.6× 57 1.2× 32 239
W. M. Laauwen Netherlands 9 187 0.9× 77 0.4× 61 0.5× 50 0.5× 55 1.1× 34 265
H.-W. Hübers Germany 11 57 0.3× 301 1.6× 216 1.9× 133 1.4× 65 1.4× 32 448
B. N. Ellison United Kingdom 11 112 0.5× 257 1.3× 47 0.4× 133 1.4× 47 1.0× 40 387
M. J. Griffin United Kingdom 8 248 1.2× 48 0.2× 36 0.3× 20 0.2× 51 1.1× 24 284
Michael Coulombe United States 10 34 0.2× 170 0.9× 148 1.3× 92 1.0× 70 1.5× 25 306
M. J. Richter United States 9 210 1.0× 34 0.2× 30 0.3× 45 0.5× 57 1.2× 21 281
Anders Emrich Sweden 11 164 0.8× 224 1.2× 22 0.2× 55 0.6× 75 1.6× 58 371
Andrei Korotkov United States 8 84 0.4× 78 0.4× 9 0.1× 72 0.8× 33 0.7× 27 185
Gregory K. Ching United States 5 261 1.2× 39 0.2× 46 0.4× 60 0.6× 33 0.7× 10 301

Countries citing papers authored by F. Schäfer

Since Specialization
Citations

This map shows the geographic impact of F. Schäfer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by F. Schäfer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites F. Schäfer more than expected).

Fields of papers citing papers by F. Schäfer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by F. Schäfer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by F. Schäfer. The network helps show where F. Schäfer may publish in the future.

Co-authorship network of co-authors of F. Schäfer

This figure shows the co-authorship network connecting the top 25 collaborators of F. Schäfer. A scholar is included among the top collaborators of F. Schäfer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with F. Schäfer. F. Schäfer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Thome, Fabian, et al.. (2021). A 67–116-GHz Cryogenic Low-Noise Amplifier in a 50-nm InGaAs Metamorphic HEMT Technology. IEEE Microwave and Wireless Components Letters. 32(5). 430–433. 12 indexed citations
2.
Thome, Fabian, et al.. (2020). Frequency Multiplier and Mixer MMICs Based on a Metamorphic HEMT Technology Including Schottky Diodes. IEEE Access. 8. 12697–12712. 10 indexed citations
3.
Thome, Fabian, et al.. (2020). A Fully-Integrated W-Band I/Q-Down-Conversion MMIC for Use in Radio Astronomical Multi-Pixel Receivers. Fraunhofer-Publica (Fraunhofer-Gesellschaft). 193–196. 5 indexed citations
4.
Thome, Fabian, Arnulf Leuther, J. D. Gallego, et al.. (2018). 70-116-GHz LNAs in 35-nm and 50-nm Gate-Length Metamorphic HEMT Technologies for Cryogenic and Room-Temperature Operation. Fraunhofer-Publica (Fraunhofer-Gesellschaft). 1495–1498. 8 indexed citations
5.
Kotiranta, Mikko, et al.. (2016). Cryogenic 50-nm mHEMT MMIC LNA for 67-116 GHz with 34 K noise temperature. Fraunhofer-Publica (Fraunhofer-Gesellschaft). 1–3. 6 indexed citations
6.
Moschetti, Giuseppe, Fabian Thome, F. Schäfer, et al.. (2016). Stability Investigation of Large Gate-Width Metamorphic High Electron-Mobility Transistors at Cryogenic Temperature. IEEE Transactions on Microwave Theory and Techniques. 64(10). 3139–3150. 18 indexed citations
7.
Kotiranta, Mikko, Arnulf Leuther, H. Maßler, et al.. (2014). Cryogenic low noise amplifier development for 67–116 GHz. Fraunhofer-Publica (Fraunhofer-Gesellschaft). 1–2. 3 indexed citations
8.
Gallego, J. D., M. Seelmann‐Eggebert, B. Aja, et al.. (2012). A Noise Source Module for In-Situ Noise Figure Measurements From DC to 50 GHz at Cryogenic Temperatures. IEEE Microwave and Wireless Components Letters. 22(12). 657–659. 3 indexed citations
9.
Aja, B., K. Schüster, F. Schäfer, et al.. (2011). Cryogenic Low-Noise mHEMT-Based MMIC Amplifiers for 4–12 GHz Band. IEEE Microwave and Wireless Components Letters. 21(11). 613–615. 25 indexed citations
10.
Schäfer, F., M. Seelmann‐Eggebert, B. Aja, et al.. (2011). A single chip broadband noise source for noise measurements at cryogenic temperatures. 2011 IEEE MTT-S International Microwave Symposium. 4855. 1–4. 6 indexed citations
11.
Seelmann‐Eggebert, M., F. Schäfer, Arnulf Leuther, & H. Maßler. (2010). A versatile and cryogenic mHEMT-model including noise. 2010 IEEE MTT-S International Microwave Symposium. 501–504. 12 indexed citations
12.
Seelmann‐Eggebert, M., et al.. (2010). A versatile and cryogenic mHEMT-model including noise. 2010 IEEE MTT-S International Microwave Symposium. 1–1. 11 indexed citations
13.
Kallfass, Ingmar, A. Tessmann, M. Seelmann‐Eggebert, et al.. (2009). The metamorphic HEMT and its applications in remote sensing. Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft). 1 indexed citations
14.
Stark, R., G. Sandell, S. C. Beck, et al.. (2004). Probing the Early Stages of Low‐Mass Star Formation in LDN 1689N: Dust and Water in IRAS 16293−2422A, B, and E. The Astrophysical Journal. 608(1). 341–364. 76 indexed citations
15.
Boonman, A. M. S., R. Stark, E. F. van Dishoeck, et al.. (2001). Highly Abundant HCN in the Inner Hot Envelope of GL 2591: Probing the Birth of a Hot Core?. The Astrophysical Journal. 553(1). L63–L67. 54 indexed citations
16.
Schäfer, F., P. van der Wal, E. Kreysa, & K. H. Gundlach. (1997). A quasioptical SIS receiver with normal metal tuning for the 800-900 GHz band. 566. 3 indexed citations
17.
Schäfer, F. & Ralf Conrad. (1993). Metabolism of nitric oxide byPseudomonas stutzeriin culture and in soil. FEMS Microbiology Letters. 102(2). 119–127. 27 indexed citations
18.
Lehnert, Thomas, F. Schäfer, & K. H. Gundlach. (1993). Resonance effects in Josephson tunnel junctions with integrated tuning structures. Journal of Applied Physics. 74(2). 1403–1409. 4 indexed citations
19.
Schäfer, F., et al.. (1989). Observations of CO (J=7-6) in star-forming regions.. A&A. 211. 419–427. 1 indexed citations
20.
Schmid‐Burgk, J., et al.. (1989). Extended CO (J=7-6) emission from Orion molecular cloud 1: hot ambient gas, two hot-outflow sources. 215(1). 150–164. 6 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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