VERÖFFENTLICHUNGEN

Veröffentlichungen des Labors Hochfrequenztechnik und EMV (seit 2009)

2016

  • BOUEZZEDDINE, M.; SCHROEDER, W. L.: Design of a Wideband, Tunable 4-port MIMO Antenna System with High Isolation Based on the Theory of Characteristic Modes, In: IEEE Transactions on Antennas and Propagation (Special Issue on Theory and Applications of Characteristic Modes), Vol. 64, No. 7, pp. 2679--2688, July 2016.
  • BOUEZZEDDINE, M.; SCHROEDER, W. L.: Systematic Approach for Electrically Tuning N-port Antenna System Based on Characteristic Modes, In: European Conference on Antennas and Propagation (EuCAP 2016), (Davos, Switzerland), Apr. 2016.
  • BOUEZZEDDINE, M.: Investigation of a Termination Impact in a Multiport Antenna System, In: European Conference on Antennas and Propagation (EuCAP 2016), (Davos, Switzerland), Apr. 2016.

2015

  • BOUEZZEDDINE, M.; SCHROEDER, W. L.: Wideband decoupling and tunable matching networks for multi-port antennas, In: 9th European Conference on Antennas and Propagation (EuCAP 2015), (Lisbon, Portugal), Apr. 2015.

2014

  • BOUEZZEDDINE, M.; SCHROEDER, W. L.; KAISER, T.: On the design of MIMO antennas for cognitive for cognitive radio systems, In: 1st IEEE International Workshop on Cognitive Cellular Systems, (Rhine River, Germany), Sep. 2014.
  • SCHROEDER, W. L.; BOUEZZEDDINE, M.; KREWSKI, A.: Design approaches for electrically small MIMO antenna systems on mobile devices, In: Int. Conf. on Electromagnetics in Advanced Appl. / IEEE-APS Topical Conf. on Antennas and Propagation in Wireless Communications (ICEAA / APWC), (Palm Beach, Aruba), Aug. 2014, paper 211.
  • KREWSKI, A.; SCHROEDER, W. L.: General application of characteristic mode equivalent circuit models in antenna design, In: Proc. IEEE Antennas and Propagation Society Int. Symp. Digest, (Memphis, TN), Juli 2014, paper 1338.
  • BOUEZZEDDINE, M.; SCHROEDER, W. L.: Parametric study on capacitive and inductive couplers for exciting characteristic modes on CPE. In: European Conference on Antennas and Propagation (EuCAP 2014), (The Hague, Netherlands), April 2014.
  • BOUEZZEDDINE, M.; SCHROEDER, W. L.: On the design of wideband matching and decoupling networks for N-port antennas. In: European Conference on Antennas and Propagation (EuCAP 2014), (The Hague, Netherlands), April 2014.
  • KREWSKI, A.; SCHROEDER, W. L.: Electrically switchable multi-port matching network for 2-port MIMO antennas. In: European Conference on Antennas and Propagation (EuCAP 2014), (The Hague, Netherlands), April 2014.

2013

  • KREWSKI, A.; SCHROEDER, W. L.; SOLBACH, K.: 2-port DL-MIMO antenna design for LTE-enabled USB dongles. In: IEEE Antennas Wireless Propagation Letters 12 (2013), S. 1436-1439
  • KREWSKI, A.; SCHROEDER, W. L.: Tight upper bound on radiation pattern correlation for N-port MIMO antennas. In: Electronics Letters. 49 (2013), S. 1427-1428
  • KREWSKI, A.; SCHROEDER, W. L.: Electrically tunable mode decomposition network for 2-port MIMO antennas. In: Loughborough Antennas & Propagation Conference (LAPC 2013), (Loughborough, UK), Nov. 2013.
  • KREWSKI, A.; SCHROEDER, W. L.; SOLBACH, K.: Multi-band 2-port MIMO Antenna Design for LTE-enabled 13'' Monocoque Laptop. In: Proc. IEEE Antennas and Propagation Society Int. Symp. Digest, (Orlando, FL), Juli 2013
  • KREWSKI, A.: 2-port MIMO antenna system for high frequency data link with UAVs using characteristic modes. In: Proc. IEEE Antennas and Propagation Society Int. Symp. Digest, (Orlando, FL), Juli 2013
  • BOUEZZEDDINE, M.; KREWSKI, A.; SCHROEDER, W. L.: A concept study on MIMO antenna systems for small size CPE operating in the TV white spaces. In: COST IC1004, 7th MCM, (Ilmenau, Germany), Mai 2013. TD(13)07051
  • KREWSKI, A.; SCHROEDER, W. L.; SOLBACH, K.: Upper bound on pattern correlation of lossy N-port antennas in terms of modal efficiencies. In: 7th European Conference on Antennas and Propagation (EuCAP 2013), (Gothenburg, Sweden), April 2013.
  • SCHROEDER, W. L.; TANKIELUN, A.; FENG, Y.; VON GAGERN, C.: Characterization of UE antenna systems by means the two-antenna MIMO OTA measurement method. In: COST IC1004, 6th MCM, (Malaga Spain), Febr. 2013. TD(13)06072

2012

  • PEDERSEN , G. F.; PELOSI, M.; WELINDER, J.; JAMSA, T.; YAMAMOTO, A.; NURKKALA, M.; LING , S. L.; SCHROEDER , W.; BROWN, T.: Pervasive Mobile and Ambient Wireless Communications – COST Action 2100, Kap. 5 OTA Test methods for Multiantenna Terminals, S. 197–247. London: Springer-Verlag, 2012
  • KREWSKI, A.; SCHROEDER, W. L.; SOLBACH, K.: Multi-band 2-port MIMO LTE antenna design for laptops using characteristic modes. In: Loughborough Antennas & Propagation Conference (LAPC 2012), (Loughborough, UK), Nov. 2012
  • KREWSKI, A.; SCHROEDER, W. L.: N-port DL-MIMO antenna system realization using systematically designed mode matching and mode decomposition network. In: European Microwave Conference 2012 (EuMC2012) , (Amsterdam, The Netherlands), Oct. 2012.
  • FENG, Y.; SCHROEDER, W. L.; VON GAGERN, C.; TANKIELUN, A.; KAISER, T.: Metrics and methods for evaluation of over-the-air performance of MIMO user equipment. In: International Journal of Antennas and Propagation Vol. 2012, Article ID 598620, 15 pages, doi:10.1155/2012/598620, June 2012.
  • FENG, Y.; SCHROEDER, W. L.; KAISER, T.: Straightforward MIMO OTA characterization and statistical metrics for LTE devices. In: 6th European Conference on Antennas and Propagation (EuCAP 2012), (Prague, Czech Republic), March 2012.
  • KREWSKI, A.; SCHROEDER, W. L.; SOLBACH, K.: MIMO LTE antenna design for laptops based on theory of characteristic modes. In: 6th European Conference on Antennas and Propagation (EuCAP 2012), (Prague, Czech Republic), March 2012.

2011

  • KREWSKI, A.; SCHROEDER, W. L.; SOLBACH, K.: Matching network synthesis for mobile MIMO antennas based on minimization of the total multi-port return loss. In: Loughborough Antennas & Propagation Conference (LAPC 2011), (Loughborough, UK), Nov. 2011
  • FENG, Y.; SCHROEDER, W. L.; ACHARKAOUI, R.; RICHTER, W.; TANKIELUN, A.; VON GAGERN , C.: Straightforward MIMO OTA characterization and statistical metrics: Applied to LTE devices. In: COST IC 1004 Scientific Meeting, (Lisbon, Portugal), Oct. 2011. TD(11)02064
  • BÖHLER, E.; VON GAGERN, C.; TANKIELUN, A.; FENG, Y.; SCHROEDER , W.: Measurements of over-the-air performance of MIMO UE. In: 33rd Annual Symposium of the Antenna Measurement Techniques Association (AMTA 2011), (Englewood, Colorado), Oct. 2011
  • SCHROEDER, W. L.; FENG, Y.: A critical review of MIMO OTA test concepts - lessons learned from actual measurements. In: XXX General Assembly and Scientific Symposium of the International Union of Radio Science, paper no. CA.3, (Istanbul, Turkey), Aug. 2011
  • VON GAGERN, C.; TANKIELUN, A.; FENG, Y.; SCHROEDER, W. L.; ACHARKAOUI, R.; R ICHTER, W.: Test plan for DL 2 × 2 MIMO OTA testing - Part 2: Test plan description and examples. In: COST IC 1004 Scientific Meeting (Lund, Sweden), Juni 2011. TD(11)01044
  • FENG, Y.; SCHROEDER, W. L.; VON GAGERN, C.; TANKIELUN, A.; ACHARKAOUI, R.; R ICHTER, W.: Test plan for DL 2 × 2 MIMO OTA testing - Part I: Concepts for straightforward characterization measurements and statistical metrics. In: COST IC 1004 Scientific Meeting (Lund, Sweden), Juni 2011. TD(11)01045
  • FENG, Y.; JONAS, J.; SCHROEDER, W.  L.: Discussion of Statistical Metrics for MIMO OTA Performance Based on Empirical Results. In: 5th European Conference on Antennas and Propagation (Rome), April 2011.
  • KREWSKI, A.; SCHROEDER, W.  L.; SOLBACH, K.: Bandwidth Limitations and Optimum Low-Band LTE MIMO Antenna Placement in Mobile Terminals Using Modal Analysis. In: 5th European Conference on Antennas and Propagation (Rome), April 2011.

2010

  • Feng, Y. ; JONAS, J.; SCHROEDER, W. L.; ACHARKAOUI, R.; RUMNEY, M.: Results from the COST2100 SWG 2.2 MIMO OTA round robin measurement campaign. In: COST 2100, 12th MCM (Bologna, Italy), TD(10)12086, Nov. 2010.
  • Feng, Y. ; JONAS, J.; SCHROEDER, W. L.; ACHARKAOUI, R.; RUMNEY, M.: COST2100 MIMO OTA round robin measurement campaign - first results & conclusions, 3GPP TSG-RAN WG4, Xi'an, China, doc. no. R4-103763, Oct. 2010.
  • SCHROEDER, W.  L.; KREWSKI, A.: Total multi-port return loss as figure of merit for MIMO antenna systems. In: 40th European Microwave Conference (Paris), paper no. EuMC/EuWiT01-5, Sept. 2010.
  • KREWSKI, A.; SCHROEDER, W. L.: Equivalent circuit model for closely coupled symmetrical two-port MIMO antennas in small volume. In: Proc. IEEE Antennas and Propagation Society Int. Symp. Digest (Toronto, CA), paper no. IF315.6, Juli 2010.
  • FENG, Y.; SCHROEDER, W. L.: Steps towards theoretical analysis and comparison of MIMO antenna metrics, In: COST 2100, 11th MCM (Aalborg, Denmark), TD(10)11082, Juni 2010.
  • FENG, Y.; KREWSKI, A.; SCHROEDER, W. L.: Simulation based comparison of metrics and measurement methodologies for OTA test of MIMO terminals. In: Proc. 4th European Conference on Antennas and Propagation - EuCAP 2010 (Barcelona, Spain), paper no. C01P2-4, April 2010.
  • FENG, Y.; KREWSKI, A.; SCHROEDER, W. L.: Towards a simulation tool for comparison of MIMO OTA measurement methods and metrics. In: COST 2100, 10th MCM (Athens, Greece), TD(10)10058, Febr. 2010.

2009

  • FENG, Y.; SCHROEDER, W. L.: Discussion of low-effort MIMO OTA testing approaches & suggested applicable FOM. In: COST 2100, 9th MCM (Vienna, Austria), TD(09)951, Sept. 2009.
  • FENG, Y.; SCHROEDER, W. L.: Extending the definition of Total Isotropic Sensitivity (TIS) and Total Radiated Power (TRP) for application to MIMO over-the-air (OTA) testing . In: COST 2100, 8th MCM (Valencia, Spain), TD(09)866, May 2009.
  • SCHROEDER, W. L.; FENG, Y.: Proposal for a built-in MIMO test function for E-UTRA user equipment and its application. In: COST 2100, 8th MCM (Valencia, Spain), TD(09)853, May 2009.
  • SCHROEDER, W. L.; FENG, Y.; PESAVENTO, M.: Discussion of some options and aspects in over-the-air (OTA) testing of multiple input - multiple output (MIMO) user equipment (UE). In: COST 2100, 7th MCM (Braunschweig), TD(09)740, Feb. 2009.