Publikationer av Claes Beckman

Refereegranskade

Artiklar

[1]

P. Ramachandran, Z. Milosavljevic och C. Beckman, "Adaptive penta-band handset antenna with hand effect compensation," IET Microwaves, Antennas & Propagation, vol. 6, no. 1, s. 79-86, 2012.

[2]

P. Händel, S. Prasad och C. Beckman, "Maximum likelihood estimation of reverberation chamber direct-to-scattered ratio," Electronics Letters, vol. 45, no. 25, s. 1285-U24, 2009.

[3]

C. Beckman och G. Smith, "Shared Networks : Making Wireless Communications Affordable," IEEE wireless communications, vol. 12, no. 2, s. 78-85, 2005.

[4]

C. Beckman, "Dual polarised multibeam antenna," Electronics Letters, vol. 35, no. 25, s. 2158-2160, 1999.

[5]

C. Braun, G. Engblom och C. Beckman, "Evaluation of antenna diversity performance for mobile handsets using 3-D measurement data," IEEE Transactions on Antennas and Propagation, vol. 47, no. 11, s. 1736-1738, 1999.

[6]

B. Lindmark et al., "Dual-polarized array for signal-processing applications in wireless communications," IEEE Transactions on Antennas and Propagation, vol. 46, no. 6, s. 758-763, 1998.

[7]

C. Beckman, "Antenna systems for polarization diversity," Microwave Journal, 1997.

[8]

C. Beckman och J. Sjöstrand, "Confocal fundus imaging with a scanning laser ophthalmoscope in eyes with cataract.," British Journal of Ophthalmology, vol. 79, no. 10, s. 900-4, 1995.

[9]

C. Beckman, "The 'light scattering factor'. Importance of stimulus geometry, contrast definition, and adaptation.," Investigative Ophthalmology and Visual Science, vol. 36, no. 11, s. 2313-7, 1995.

[10]

C. Beckman, "Disputing Viking navigation by polarized skylight.," Applied Optics, vol. 33, no. 21, s. 4754-5, 1994.

[11]

C. Beckman, "Glare and contrast sensitivity before and after Nd : YAG laser capsulotomy.," Acta ophthalmologica, vol. 72, no. 1, s. 27-32, 1994.

[12]

C. Beckman, "Imaging through light scattering eye media : letter identification," Proc.SPIE, vol. 2079, s. 2079-2079, 1994.

[13]

C. Beckman, "Intraocular light scattering in vision, artistic painting, and photography.," Applied Optics, vol. 33, no. 21, s. 4749-53, 1994.

[14]

C. Beckman, "Glare measurements before and after cataract surgery.," Acta ophthalmologica, vol. 71, no. 4, s. 471-6, 1993.

[15]

C. Beckman, "Comparison of three methods of evaluating glare.," Acta ophthalmologica, vol. 70, no. 1, s. 53-9, 1992.

[16]

C. Beckman, "Comparison of two glare measurement methods through light scattering modeling.," Optometry and Vision Science, vol. 69, no. 7, s. 532-7, 1992.

[17]

C. Beckman, "Optical properties of diffractive, bifocal, intraocular lenses.," Applied Optics, vol. 31, no. 13, s. 2377-84, 1992.

[18]

R. Scott, C. Beckman och L. F. Garner, "A preliminary investigation into the direct measurement of intra-ocular light scatter after radial keratotomy," Clinical and experimental optometry, vol. 74, no. 6, s. 204-209, 1991.

[19]

C. Beckman, "Evaluation of a clinical glare test based on estimation of intraocular light scatter.," Optometry and Vision Science, vol. 68, no. 11, s. 881-7, 1991.

[20]

C. Beckman, L. Lundgren och D. Roos, "Dielectric-loaded circular ridge waveguide applicator for hyperthermia," Microwave and optical technology letters (Print), vol. 1, no. 6, s. 221-223, 1988.

Konferensbidrag

[21]

O. Kynman et al., "Analysis and Measurement of Key Performance Indicators for MIMO Antennas," i 18th European Conference on Antennas and Propagation, EuCAP 2024, 2024.

[22]

C. Beckman et al., "High Reliability Air-to-Ground Communication System based on Aggregation of Terrestrial Networks," i Proceedings - 2023 28th Asia Pacific Conference on Communications, APCC 2023, 2023, s. 75-80.

[23]

C. Beckman och J. Markendahl, "Can local 5G networks using local spectrum be used as platform for digitalization of industrial systems and services?," i Proceedings 31st European Regional ITS Conference, Gothenburg, Sweden, June 2022 : Reining in Digital Platforms? Challenging monopolies, promoting competition and developing regulatory regimes, 2022.

[24]

J. Garcia et al., "Measuring and Modeling Aggregate LTE Connection Reliability for Train Operations," i 2022 IEEE international workshop on communications quality and reliability (IEEE CQR), 2022, s. 31-36.

[25]

H. Mikkelsen et al., "Benchmarking Alternative Technologies for providing Voice Services onboard Trains," i Proceedings of the IEEE Vehicular Technology Conference, 2020.

[26]

J. Garcia et al., "Interactions Between Train Velocity and Cellular Link Throughput - An Extensive Study," i 2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2019, s. 1-7.

[27]

C. Beckman et al., "On the impact of velocity on the train-to-earth MIMO propagation channel : Statistical observations and qualitative analysis," i 2017 IEEE Antennas and Propagation Society International Symposium, Proceedings, 2017, s. 1865-1866.

[28]

J. Garcia et al., "Train Velocity and Data Throughput - A Large Scale LTE Cellular Measurements Study," i 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017, s. 1-6.

[29]

A. C. Ruiz, C. Cavdar och C. Beckman, "Impact of Base Station Antenna Vertical Beam Width and Tilt on the Performance of LTE Networks," i 2016 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, 2016, s. 907-908.

[30]

C. Beckman och K. Nilsson, "The Technical and Economic Consequences of Protecting GSM-R in Sweden," i 2016 IEEE 83RD VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING), 2016.

[31]

C. Elofsson, C. Karlsson och C. Beckman, "On the interference between digital terrestrial television and mobile broadband in the Swedish 800 MHz band," i IEEE International Symposium on Electromagnetic Compatibility, 2014, s. 528-532.

[32]

M. Alasali, C. Beckman och M. Karlsson, "Providing internet to trains using MIMO in LTE networks," i 2014 International Conference on Connected Vehicles and Expo, ICCVE 2014 - Proceedings, 2014, s. 810-814.

[33]

V.-I. Bratu och C. Beckman, "Base station antenna tilt for load balancing," i 2013 7th European Conference on Antennas and Propagation (EUCAP), 2013, s. 2039-2043.

[34]

M. Alasali och C. Beckman, "LTE MIMO performance measurements on trains," i 2013 7th European Conference on Antennas and Propagation (EuCAP), 2013, s. 2327-2330.

[35]

C. Beckman och B. Karlsson, "The story of Allgon : HF, VHF, cellular and microwave antennas during allmost 60 years," i 2013 7th European Conference on Antennas and Propagation (EuCAP), 2013, s. 3171-3173.

[36]

A. Ikram, C. Beckman och S. Irmscher, "Design and Development of a Multiband Loop Antenna for Cellular Mobile Handsets," i IEEE International Workshop on Antenna Technology, 2011, s. 251-254.

[37]

J. Markendahl et al., "Scenario driven requirement engineering for design and deployment of mobile communication networks," i 22nd European Regional ITS Conference, Budapest, 18-21 September, 2011, 2011.

[38]

S. Prasad och C. Beckman, "Comparison of Four Different Methods to Estimate the Radiated Power from Mobile Phones," i Comparison of Four Different Methods to Estimate the Radiated Power from Mobile Phones, 2010, s. 425-428.

[39]

P. Ramachandran, Z. Milosavljevic och C. Beckman, "Adaptive Matching Circuit for Compensation of Finger Effect on Handst Antennas," i EUCAP 2009, 2009, s. 801-804.

[40]

P. Ramachandran, O. Bengtsson och C. Beckman, "Impedance determination of terminal power amplifiers for optimal antenna matching using load-pull method," i 2009 IEEE INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY : , 2009, s. 1-4.

[41]

S. Prasad et al., "Estimation of the Rician K-factor in Reverberation Chambers for Improved Repeatability in Terminal Antenna Measurements," i 30th Annual Symposium of the Antenna Measurement Techniques Association (AMTA), 2008.

[42]

C. Beckman et al., "Verifying 3G License Requirements : some Preliminary Swedish Results," i The 68th IEEE Vehicular Technology Conference : VTC2008-Fall, 2008, s. 1-4.

[43]

P. H. Krishna et al., "Multi-band PIFA for combined 3G and DVB-H Terminals : a preliminary study," i 2007 IEEE International Workshop on Antenna Technology : Small & Smart Antennas, Metamaterials and Applications : iWAT 2007, S²AMA : conference proceedings : Cambridge, UK, March 21-23, 2007, 2007, s. 439-442.

[44]

C. Beckman och B. Lindmark, "The evolution of base station antennas for mobile communications," i International Conference on Electromagnetics in Advanced Applications : ICEAA 07, 2007, s. 85-92.

[45]

C. Beckman et al., "Verifying 3G licence requirements when every dB is worth a billion," i First European Conference on Antennas & Propagation : EuCAP 2006, 2006, s. 1-4.

[46]

G. Smith och C. Beckman, "Shared Networks : More than making wireless communication affordable," i Vehicular Technology Conference, 2005 : VTC 2005-Spring., 2005, s. 2984-2988.

[47]

C. Beckman och G. Smith, "The Benefits of network Sharing," i Radiovetenskap och Kommunikation : RVK 2005, 2005, s. 147-151.

[48]

C. Beckman, "Performance analysis of applying up-link estimates in the down-link beamforming using a dual polarized array," i VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026), 2000, s. 690-694 vol.2.

[49]

M. Ahlberg et al., "Downlink propagation measurements in the GSM 900 and 1800 MHz bands," i IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010), 1999, s. 1506-1509 vol.3.

[50]

C. Beckman, B. Christian och G. Engblom, "Antenna diversity for mobile telephones," i IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36, Atlanta, GA, 1998, pp. 2220-2223 vol.4., 1998, s. 2220-2223.

[51]

B. Lindmark, S. Lundgren och C. Beckman, "Dual polarized aperture coupled patch multibeam antenna," i IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36, 1998, s. 328-331 vol.1.

[52]

C. Beckman, "Polarization diversity in CDMA," i IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36, 1998, s. 2236-2239 vol.4.

[53]

C. Beckman, "Wave propagation in curved road tunnels," i IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36, 1998, s. 1876-1879 vol.4.

[54]

C. Beckman, U. Wahlberg och S. Widell, "Polarization Diversity Antennas," i Antenn 97 : Nordiskt antennsymposium, 1997, s. 59-65.

[55]

C. Beckman, "The performance of polarization diversity antennas at 1800 MHz," i IEEE Antennas and Propagation Society International Symposium 1997. Digest, 1997, s. 1368-1371 vol.2.

[56]

C. Beckman och J. Eriksson, "Mutual coupling effects on direction of arrival estimation," i In Radiovetenskaplig konferens, Luleå, Sweden 1996, 1996, s. 410-414.

[57]

C. Beckman, "Plausibility of assuming ideal arrays for direction of arrival estimation," i IEEE Antennas and Propagation Society International Symposium. 1996 Digest, 1996, s. 1364-1367 vol.2.

[58]

C. Beckman, "The influence of increased interocular lightscatter on the contrast in a confocal scanning laserophthalmoscope image," i Vision Science and Its Application, Vol. 1 of 1995 OSA Technical Digest Series (Optical Society of America, 1995), 1995, s. 106-109.

[59]

C. Beckman, "Fiber optic point-source for in vivo measurement of light transmission and scattering in the eye," i OphthalmicTechnologies, Proc. SPIE 2126, 324-330 (Societ of Photo-Optical Engineers, Bellingham WA, 1994)., 1994, s. 324-330.

[60]

C. Beckman, T. Jörgen och S. Johan, "In vitro Lens Scatter Measurements and Glare Testing," i The Association for Research in Vision and Ophthalmology Annual Meeting. Sarasota, Florida, May 1-6, 1994. Abstracts. Investigative Ophthalmology & Visual Science March 1994, Vol.35, 1254-2383., 1994, s. 1803.

[61]

C. Beckman, "Letter imaging through light scattering eye media in the absence and presence of glaring light," i Vision and its application: OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994)., 1994, s. 94-97.

[62]

C. Beckman och R. Curt, "Disputing Viking Navigation by Polarized skylight," i Light and Color in the Open Air, OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993, 1993, s. 34-37.

[63]

C. Beckman, "Vision and light scattering in the living eye," i Light and Color in the Open Air, 13: 28-31, OSA Technocal Digest Series (Optical Society of America, Washington, D.C.,1993, 1993, s. 28-31.

[64]

M. Larsson et al., "Optical properties of diffractive, bifocal intraocular lenses," i Ophthalmic Lens Design and Fabrication, SPIE 1529(Societ of Photo-Optical Engineers, Bellingham WA, 1991)., 1991, s. 63-70.

Icke refereegranskade

Artiklar

[65]

V.-I. Bratu och C. Beckman, "Antenna Tilt Load Balancing in Self-Organizing Networks," International Journal of Research in Wireless Systems, vol. 2, no. 1, s. 21-26, 2013.

[66]

C. Beckman och S. Klahr, "Ett ödesval för regionen," Gefle Dagblad, no. 6 februari, 2009.

Konferensbidrag

[67]

C. Beckman, "5G and its Implication for Rail," i Train Communicatins Systems 2019 : The WiFi on trains conference, 2019.

[68]

V.-I. Bratu och C. Beckman, "Base Station Antenna Tilt for Load Balancing and Potential use in Self-Optimizating Networks," i Radiovetenskap och Kommunikation 2013 "Generation, Real-Time Processing, Transport, Distribution and Management of Large Raw Data Volumes in the Physical Sciences"; KVA, Royal Academy of Sciences, Frescati, Stockholm, Sweden, 11-12 November, 2013, 2013.

[69]

I. Tecsor et al., "Initial Investigations into the Effects of Mutual Coupling and Architecture of the EISCAT3D array," i 16th International EISCAT symposium, 12-16 August 2013, Lancaster UK, 2013.

[70]

M. Alasali och C. Beckman, "LTE MIMO Performance Measurements on Board Passenger Trains," i KVA, Royal Academy of Sciences, Frescati, Stockholm 11-12 November 2013, 2013.

[71]

D. Andersson et al., "M-Sequence UWB Radar for Industrial Applications," i Program of GigaHertz Symposium 2010, March 9-10, at Lund University, 2010.

[72]

H. Halim, S. Prasad och C. Beckman, "Evaluation of a Near Field Scanner for TRP and Radiation Pattern Measurements of GSM Mobile Phones," i 3rd European Conference on Antennas and Propagation, 2009. EuCAP 2009., 2009, s. 2207-2211.

[73]

C. Beckman och B. Lindmark, "Base station antennas for mobile communications," i 2007 IEEE International Symposium on Antennas and Propagation, 2007.

[74]

S. Prasad et al., "EVALUATION OF THE TELIA SCATTERED FIELD MEASUREMENT METHOD FOR ESTIMATION OF IN-NETWORK PERFORMANCE OF MOBILE TERMINAL ANTENNAS," i 29th Annual Symposium of the Antenna Measurement Techniques Association (AMTA 2007), 2007.

[75]

C. Beckman, B. Lindmark och M. Ahlberg, "Dual Band Base Station Antenna Systems," i Broad Band Radio Access, 1998, s. 69-74.

[76]

C. Beckman, N. Martin och S. Jesper, "Radio Propagation in Curved Road Tunnels," i Nordic Radio Symposium on Broadband Radio Access, NRS98 (Saltsjöbaden), 1998., 1998, s. 41-46.

[77]

C. Beckman, "Implications of Dual Band Functionality on Base Station Antenna Development," i Dual Band/Multi Band '97, 1997.

[78]

C. Beckman, "Examining the performance of dul band base station antennas : What progress is being made?," i Integrating GSM & DCS 1800 : Exploiting the business potential of, 1996.

[79]

C. Beckman, J. Thaung och J. Sjöstrand, "In-vitro lens scatter measurements and glare testing," i ARVO Annual Meeting, 1994.

Böcker

[80]

P. Popovsk et al., EU FP7 INFSO-ICT-317669 METIS, D1.1 Scenarios, requirements and KPIs for 5G mobile and wireless system. European Commission, 2013.

Kapitel i böcker

[81]

C. Beckman, "Verifying 3G License Coverage Requirements," i Advances in Vehicular Networking Technologies, Miguel Almeida red., : InTech, 2011, s. 339-356.

Rapporter

[82]

P. Burman et al., "Slutrapport: Genomförbarhetsstudie - Lokala nät och lokal spektrumanvändning för industriella radiosystem," , TRITA-EECS-RP, 2021:1, 2021.

[83]

C. Beckman, "Antenna-to-Antenna Isolation Measurements," Sophia Antipolis, France, 3GPP TSG-RAN Working Group 4 (Radio) Meeting #8 TSGR4#8(99)631, 1999.