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Rydberg, Anders
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Publications (10 of 166) Show all publications
Dancila, D., Hoang Duc, L., Jobs, M., Holmberg, M., Hjort, A., Rydberg, A. & Ruber, R. (2017). A compact 10 kW solid-state RF power amplifier at 352 MHz. In: : . Paper presented at 8th International Particle Accelerator Conference 14–19 May 2017, Copenhagen, Denmark (IPAC17).
Open this publication in new window or tab >>A compact 10 kW solid-state RF power amplifier at 352 MHz
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2017 (English)Conference paper, Published paper (Refereed)
Series
Journal of Physics: Conference Series, E-ISSN 1742-6596 ; 874
National Category
Communication Systems
Research subject
Engineering Science with specialization in Microwave Technology
Identifiers
urn:nbn:se:uu:diva-336076 (URN)
Conference
8th International Particle Accelerator Conference 14–19 May 2017, Copenhagen, Denmark (IPAC17)
Projects
ESS
Available from: 2017-12-12 Created: 2017-12-12 Last updated: 2017-12-14Bibliographically approved
Dancila, D., Hoang Duc, L., Jobs, M., Holmberg, M., Hjort, A., Rydberg, A. & Ruber, R. (2017). A compact 10 kW solid-state RF power amplifier at 352 MHz. Paper presented at 8th International Particle Accelerator Conference 14–19 May 2017, Copenhagen, Denmark. Journal of Physics, Conference Series, 874, Article ID 012093.
Open this publication in new window or tab >>A compact 10 kW solid-state RF power amplifier at 352 MHz
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2017 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 874, article id 012093Article in journal (Refereed) Published
Abstract [en]

A compact 10 kW RF power amplifier at 352 MHz was developed at FREIA for the European Spallation Source, ESS. The specifications of ESS for the conception of amplifiers are related to its pulsed operation: 3.5 ms pulse length and a duty cycle of 5%. The realized amplifier is composed of eight kilowatt level modules, combined using a planar Gysel 8-way combiner. The combiner has a low insertion loss of only 0.2 dB, measured at 10 kW peak power. Each module is built around a commercially available LDMOS transistor in a single-ended architecture. During the final tests, a total output peak power of 10.5 kW was measured.

National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:uu:diva-334907 (URN)10.1088/1742-6596/874/1/012093 (DOI)000411396700093 ()
Conference
8th International Particle Accelerator Conference 14–19 May 2017, Copenhagen, Denmark
Projects
ESS
Available from: 2017-11-29 Created: 2017-11-29 Last updated: 2018-03-20Bibliographically approved
Asan, N. B., Carlos, P. P., Redzwan, S., Noreland, D., Hassan, E., Rydberg, A., . . . Augustine, R. (2017). Data Packet Transmission through Fat Tissue for Wireless Intra-Body Networks. IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology
Open this publication in new window or tab >>Data Packet Transmission through Fat Tissue for Wireless Intra-Body Networks
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2017 (English)In: IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, ISSN 2469-7249Article in journal (Refereed) Epub ahead of print
Abstract [en]

This work explores high data rate microwave communication through fat tissue in order to address the wide bandwidth requirements of intra-body area networks. We have designed and carried out experiments on an IEEE 802.15.4 based WBAN prototype by measuring the performance of the fat tissue channel in terms of data packet reception with respect to tissue length and power transmission. This paper proposes and demonstrates a high data rate communication channel through fat tissue using phantom and ex-vivo environments. Here, we achieve a data packet reception of approximately 96 % in both environments. The results also show that the received signal strength drops by ~1 dBm per 10 mm in phantom and ~2 dBm per 10 mm in ex-vivo. The phantom and ex-vivo experimentations validated our approach for high data rate communication through fat tissue for intrabody network applications. The proposed method opens up new opportunities for further research in fat channel communication. This study will contribute to the successful development of high bandwidth wireless intra-body networks that support high data rate implanted, ingested, injected, or worn devices

Keyword
Intra-body communication, microwave, channel characterization, data packet, Software Defined Radio, GNU Radio, exvivo, phantom
National Category
Engineering and Technology Medical and Health Sciences
Identifiers
urn:nbn:se:uu:diva-335351 (URN)10.1109/JERM.2017.2766561 (DOI)
Projects
Eurostars project under Grant E-9655-COMFORTSwedish Vinnova project under Grant BDAS (2015-04159)Swedish Vinnova project under Reliable, interoperable and secure communication for body network (2017-03568)
Funder
eSSENCE - An eScience CollaborationVINNOVA, 2015-04159VINNOVA, 2017-03568
Available from: 2017-12-04 Created: 2017-12-04 Last updated: 2017-12-05Bibliographically approved
Hamberg, M., Vargas Catalan, E., Karlsson, M., Dancila, D., Rydberg, A., Ögren, J., . . . Vartiainen, I. (2017). Dielectric Laser Acceleration Setup Design, Grating Manufacturing and Investigations Into Laser Induced RF Cavity Breakdowns. In: Proceedings of FEL2017, Santa Fe, NM, USA: . Paper presented at 38th International Free-Electron Laser Conference, Santa Fe, 20-25 Aug..
Open this publication in new window or tab >>Dielectric Laser Acceleration Setup Design, Grating Manufacturing and Investigations Into Laser Induced RF Cavity Breakdowns
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2017 (English)In: Proceedings of FEL2017, Santa Fe, NM, USA, 2017Conference paper, Published paper (Refereed)
National Category
Accelerator Physics and Instrumentation Engineering and Technology
Identifiers
urn:nbn:se:uu:diva-336087 (URN)978-3-95450-179-3 (ISBN)
Conference
38th International Free-Electron Laser Conference, Santa Fe, 20-25 Aug.
Available from: 2017-12-12 Created: 2017-12-12 Last updated: 2017-12-14Bibliographically approved
Asan, N. B., Redzwan, S., Rydberg, A., Augustine, R., Noreland, D., Hassan, E. & Voigt, T. (2017). Human fat tissue: A microwave communication channel. In: Proc. 1st MTT-S International Microwave Bio Conference: . Paper presented at IMBIOC 2017, May 15–17, Gothenburg, Sweden. IEEE
Open this publication in new window or tab >>Human fat tissue: A microwave communication channel
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2017 (English)In: Proc. 1st MTT-S International Microwave Bio Conference, IEEE, 2017Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we present an approach for communication through human body tissue in the R-band frequency range. This study examines the ranges of microwave frequencies suitable for intra-body communication. The human body tissues are characterized with respect to their transmission properties using simulation modeling and phantom measurements. The variations in signal coupling with respect to different tissue thicknesses are studied. The simulation and phantom measurement results show that electromagnetic communication in the fat layer is viable with attenuation of approximately 2 dB per 20 mm. 

Place, publisher, year, edition, pages
IEEE, 2017
Keyword
tissue characterization, transmission medium, biomedical sensor, channel model, phantom measurement
National Category
Medical Engineering
Identifiers
urn:nbn:se:uu:diva-335479 (URN)10.1109/IMBIOC.2017.7965801 (DOI)978-1-5386-1713-7 (ISBN)
Conference
IMBIOC 2017, May 15–17, Gothenburg, Sweden
Projects
Eurostars project (grant E-9655-COMFORT)Swedish Vinnova project (grant BDAS)eSSENCE
Available from: 2017-07-03 Created: 2017-12-05 Last updated: 2017-12-30Bibliographically approved
Asan, N. B., Noreland, D., Hassan, E., Redzwan, S., Rydberg, A., Blokhuis, T. J., . . . Augustine, R. (2017). Intra-body microwave communication through adipose tissue. Healthcare Technology Letters, 4(4), 115-121
Open this publication in new window or tab >>Intra-body microwave communication through adipose tissue
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2017 (English)In: Healthcare Technology Letters, E-ISSN 2053-3713, Vol. 4, no 4, p. 115-121Article in journal (Refereed) Published
National Category
Medical Engineering
Identifiers
urn:nbn:se:uu:diva-334322 (URN)10.1049/htl.2016.0104 (DOI)000408370500001 ()28868147 (PubMedID)
Projects
eSSENCE
Available from: 2017-05-23 Created: 2017-11-22 Last updated: 2017-12-30Bibliographically approved
Dancila, D., Beuerle, B., Shah, U., Rydberg, A. & Oberhammer, J. (2017). Micromachined Cavity Resonator Sensors for on Chip Material Characterisation in the 220–330 GHz band. In: Proceedings of the 47th European Microwave Conference, Nuremberg, October 8-13, 2017: . Paper presented at 47th European Microwave Conference, EUMC,Nuremberg..
Open this publication in new window or tab >>Micromachined Cavity Resonator Sensors for on Chip Material Characterisation in the 220–330 GHz band
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2017 (English)In: Proceedings of the 47th European Microwave Conference, Nuremberg, October 8-13, 2017, 2017Conference paper, Published paper (Refereed)
Abstract [en]

A silicon micromachined waveguide on-chip sensor for J-band (220-325 GHz) is presented. The sensor is based on a micromachined cavity resonator provided with an aperture in the top side of a hollow waveguide for sensing purposes. The waveguide is realized by microfabrication in a silicon wafer, goldmetallized and assembled by thermocompression bonding. The sensor is used for measuring the complex relative permittivity of different materials. Preliminary measurements of several dielectric materials are performed, demonstrating the potential of the sensor and methodology.

Keyword
THz, micromachined waveguides, millimeter-wave, submillimeter-wave, sensors, on-chip
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Engineering Science with specialization in Microwave Technology
Identifiers
urn:nbn:se:uu:diva-336091 (URN)
Conference
47th European Microwave Conference, EUMC,Nuremberg.
Projects
SSF Swedish Foundation for Strategic Research, Synergy Grant Electronics SEl3-007
Available from: 2017-12-12 Created: 2017-12-12 Last updated: 2017-12-13Bibliographically approved
Dittmeier, S., Brenner, R., Dancila, D., Gustafsson, L., Rydberg, A. & Yang, S. (2017). Wireless data transmission for high energy physics applications. In: : . Paper presented at Connecting The Dots/Intelligent Trackers 2017 - EPJ Web. , 150
Open this publication in new window or tab >>Wireless data transmission for high energy physics applications
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2017 (English)Conference paper, Published paper (Refereed)
Series
EPJ Web of Conferences
National Category
Communication Systems
Research subject
Engineering Science with specialization in Microwave Technology
Identifiers
urn:nbn:se:uu:diva-336088 (URN)10.1051/epjconf/201715000002 (DOI)
Conference
Connecting The Dots/Intelligent Trackers 2017 - EPJ Web
Available from: 2017-12-12 Created: 2017-12-12 Last updated: 2017-12-13Bibliographically approved
Dancila, D., Moossavi, R., Siden, J., Zhang, Z. & Anders, R. (2016). Antennas on Paper Using Ink-Jet Printing of Nano-Silver Particles for Wireless Sensor Networks in Train Environment. Microwave and optical technology letters (Print), 58(4), 754-759
Open this publication in new window or tab >>Antennas on Paper Using Ink-Jet Printing of Nano-Silver Particles for Wireless Sensor Networks in Train Environment
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2016 (English)In: Microwave and optical technology letters (Print), ISSN 0895-2477, E-ISSN 1098-2760, Vol. 58, no 4, p. 754-759Article in journal (Refereed) Published
Abstract [en]

This paper presents the design, manufacturing and measurements of antennas on paper, realized using ink-jetprinting of conductive inks based on nano-silver particles (nSPs). The extraction of the substrate characteristicssuch as the dielectric constant and dielectric loss is performed using a printed ring resonator technique. Thecharacterization of the nSPs conductive inks assesses different parameters as sintering time and temperature.Two antennas are realized corresponding to the most common needs for Wireless Sensor Networks (WSN) inTrains Environment. The first one is a patch antenna characterized by a broadside radiation pattern and suitedfor operation on metallic structures. The second one is a quasi-yagi antenna, with an end fire radiation patternand higher directivity, without requiring a metallic ground plane. Both antennas present a good matching (S11 < -20 dB and S11 < -30 dB, respectively) and acceptable efficiency (55 % and 45 %, respectively) for the papersubstrate used at the center frequency of 2.4 GHz, corresponding to the first channel of the IEEE 802.15.4 band.

Keyword
paper, antennas, ink-jet printing, nano-silver particles, WSN, train
National Category
Telecommunications
Research subject
Engineering Science with specialization in Microwave Technology
Identifiers
urn:nbn:se:uu:diva-269370 (URN)10.1002/mop.29665 (DOI)000371423300005 ()
External cooperation:
Available from: 2015-12-21 Created: 2015-12-15 Last updated: 2017-12-01Bibliographically approved
Dancila, D., Valenta, V., Bunea, A.-C., Dan, N., Schumacher, H. & Rydberg, A. (2016). Differential Microstrip Patch Antenna as Feeder of a Hyper-Hemispherical Lens for F-Band MIMO Radars. In: 2016 GLOBAL SYMPOSIUM ON MILLIMETER WAVES (GSMM) & ESA WORKSHOP ON MILLIMETRE-WAVE TECHNOLOGY AND APPLICATIONS: . Paper presented at Global Symposium on Millimeter Waves (GSMM) / ESA Workshop on Millimetre-Wave Technology and Applications, JUN 06-08, 2016,Espoo, FINLAND (pp. 103-106).
Open this publication in new window or tab >>Differential Microstrip Patch Antenna as Feeder of a Hyper-Hemispherical Lens for F-Band MIMO Radars
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2016 (English)In: 2016 GLOBAL SYMPOSIUM ON MILLIMETER WAVES (GSMM) & ESA WORKSHOP ON MILLIMETRE-WAVE TECHNOLOGY AND APPLICATIONS, 2016, p. 103-106Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, a novel differential microstrip patch antenna (DMPA) is designed and used to feed a lens antenna for short range F-band MIMO radars. The DMPA is fed differentially by a pair of coupled lines. The antenna is connected via a differential impedance matching network to the differential output of the modules, eliminating this way the need of a balun in the RF frontend. The simulated antenna gain is about 8 dBi and bandwidth (S11 < -10 dB) is between 125 - 137 GHz. Preliminary experimental measurements are shown using Transmit/Receive modules in 0.13 μm SiGe:C BiCMOS technology, hybrid connected using wirebonding to off chip DMPAs. It is shown by the transmission link evaluation that the gain is increased by about 15 dBi adding a 10 mm radius 3D printed polyamide lens in the near field of the DMPA.

Series
Global Symposium on Millimeter Waves, ISSN 2380-9515
National Category
Communication Systems
Identifiers
urn:nbn:se:uu:diva-284395 (URN)10.1109/GSMM.2016.7500312 (DOI)000389825200029 ()9781509013487 (ISBN)9781509013494 (ISBN)
Conference
Global Symposium on Millimeter Waves (GSMM) / ESA Workshop on Millimetre-Wave Technology and Applications, JUN 06-08, 2016,Espoo, FINLAND
Available from: 2016-04-18 Created: 2016-04-18 Last updated: 2017-02-09Bibliographically approved
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