# Ioan Lager

## Publications

**Nonuniform Array Antenna Design Incorporating the Mutual Coupling Between Rectangular Aperture Antennas**

Z. Wang; I. Lager; M. Simeoni;

In*12th European Conference on Antennas and Propagation*,

London, United Kingdom, April 2018.**A Complete Tool for Analyzing Mutual Couplings in Nonuniform Arrays of Rectangular Aperture Radiators**

Z. Wang; M. Simeoni; I. E. Lager;*IEEE Antennas and Wireless Propagation Letters*,

Volume 16, pp. 3192-3195, November 2017. DOI: 10.1109/LAWP.2017.2768225

document**Finite temporal support pulses for EM excitation**

I. E. Lager; S. L. van Berkel;*IEEE Antennas and Wireless Propagation Letters*,

Volume 16, pp. 1659-1662, June 2017. DOI: 10.1109/LAWP.2017.2662205

document**Grating lobes prediction in 3D array antennas**

S. Bosma; W.P. Bruinsma; R.P. Hes; M.J. Bentum; I.E. Lager;

In*11th European Conference on Antennas and Propagation*,

Paris, France, March 2017.**A near-field setup with independent amplitude and phase control of the stimuli for phased antenna testing**

C. De Martino; M. Spirito; I. E. Lager; M. Simeoni;

In*2017 11th European Conference on Antennas and Propagation (EUCAP)*,

pp. 2851-2855, March 2017. DOI: 10.23919/EuCAP.2017.7928515

## Keywords: ...

antenna phased arrays;antenna testing;digital-analogue conversion;mixers (circuits);phase control;Cartesian modulation;broadband passive IQ-mixers;complex antenna array;delay mismatch compensation;far-field radiation pattern;high-resolution DAC;high-resolution digital-to-analogue converters;independent amplitude control;loss compensation;near-field antenna setup;phase coherent signals;phase control;phased antenna array testing;quadrature signal;Antenna arrays;Antenna measurements;Antenna radiation patterns;Calibration;Europe;Testing.**Analysis of photoconductive antennas power radiation by Norton equivalent circuit**

A. Garufo; G. Carluccio; N. Llombart; A. Neto; I. E. Lager;

In*European Microwave Week 2017*,

NÃ¼remberg, Germany, Oct. 8-13 2017.**Scan loss mitigation via subarrays. A full-scale concept demonstrator**

F. S. Akbar; L. P. Ligthart; G. Hendrantoro; I. E. Lager;

In*European Microwave Week 2017*,

NÃ¼remberg, Germany, pp. 156-159, Oct. 2017.**A near-field setup with independent amplitude and phase control of the stimuli for phased antenna testing**

C. De Martino; M. Spirito; I. E. Lager; M. Simeoni;

In*12th European Conference on Antennas and Propagation*,

Paris, France, pp. 2862-2866, Mar. 19â€“24 2017.**Field quantities - a geometrical perspective**

I. E. Lager;

In*12th European Conference on Antennas and Propagation*,

Paris, France, pp. 3211-3215, Mar. 19â€“24 2017.**Time-domain EM numerical modelling: A pulse shape causality and temporal support analysis**

I. E. Lager; S. van Berkel; N. Llombart; A. Neto;

In*Proc. 10th European Conference on Antennas and Propagation*,

Davos, Switzerland, 10-15 April 2016. 10.1109/EuCAP.2016.7481733.

document**On the Design of A Dual Polarized Leaky Lens Antenna for Wideband Applications**

O. Yurduseven; N. Llombart; I.E. Lager; A. Neto;

In*European Microwave Week (EuMW 2016)*,

London, UK, October 2016.**On the adequacy of the far-field conditions for pulsed radiated EM fields**

I.E. Lager; A.B. Smolders;*IEEE Antennas and Wireless Propagation Letters*,

Volume 14, pp. 1561-1564, August 2015.

document**The time-domain optical theorem in antenna theory**

M. Stumpf; I.E. Lager;*IEEE Antennas and Wireless Propagation Letters*,

Volume 14, pp. 895-897, April 2015.

document**TD radiation properties of array antennas composed of pulsed electric-current excited elements**

I.E. Lager; A.T. de Hoop;*IEEE Antennas and Wireless Propagation Letters*,

Volume 14, pp. 715-718, March 2015.

document**Performance enhancement of 300 GHz on-chip double slot antenna by means of artificial dielectrics**

Syed, W. H.; Fiorentino, G.; Cavallo, D.; Sarro, P. M.; Neto, A.; Lager, I. E.;

In*45th European Microwave Conference*,

2015.**Performance enhancement of 300 GHz on-chip double slot antenna by means of artificial dielectrics**

W. H. Syed; G. Fiorentino; D. Cavallo; P. M. Sarro; A. Neto; I. E. Lager;

In*45th European Microwave Conference*,

Paris, France, Sep. 6-11 2015.**Pulsed-field array performance: A TD analysis**

I.E. Lager;

In*45th European Microwave Conference (EuMC)*,

Paris, France, pp. 1475-1478, September 2015.**Beamforming in sparse, random, 3D array antennas with fluctuating element locations**

M.J. Bentum; I.E. Lager; S. Bosma; W.P. Bruinsma; R.P. Hes;

In*European conference on Antennas and Propagation (EuCAP)*,

Lisbon, Portugal, April 2015.**Signal integrity in pulse-train excited array antennas in time and space - A full TD analysis**

A.T de Hoop; I.E. Lager;

In*European conference on Antennas and Propagation (EuCAP)*,

Lisbon, Portugal, April 2015.**Pulsed EM field, close-range signal transfer in layered configurations — A time-domain analysis**

I. E. Lager; V. Voogt; B. J. Kooij;*IEEE Transactions on Antennas and Propagation*,

Volume 62, Issue 5, pp. 2642-2651, May 2014.

document**Closed-form analytic expressions for the pulsed-source radiated electromagnetic field in a class of media with time-varying wave speed**

A. T. de Hoop; I. E. Lager;*Wave Motion*,

November 2013.

document**Equivalent Thévenin and Norton Kirchhoff circuits of a receiving antenna**

A.T. de Hoop; M. Stoopman; W. A. Serdijn; I. E. Lager;*IEEE Antennas and Wireless Propagation Letters*,

Volume 12, Issue 1, pp. 1627-1629, December 2013.

document**Causal Pulses With Rectangular Spectral Content: A Tool for TD Analysis of UWB Antenna Performance**

I. E. Lager; A. T. de Hoop;*IEEE Antennas and Wireless Propagation Letters*,

Volume 12, Issue 1, pp. 1488-1491, December 2013.

document**Equivalent Thevenin and Norton Kirchhoff circuits of a receiving antenna**

De Hoop, A.; Stoopman, M.; Serdijn, W.; Lager, I.;*IEEE Antennas and Wireless Propagation Letters*,

Volume 12, pp. 1627-1629, 2013. Digital Object Identifier: 10.1109/LAWP.2013.2293351.

document**Wireless digital information transfer: modelling, prediction and assessment**

I. E. Lager; A. T. de Hoop; T. Kikkawa;

In*Pulsed Electromagnetic Fields Symposium*,

Delft, Netherlands, March~18-19 2013.**Non-uniform array antennas -- the time-domain perspective**

A. Shlivinski; I. E. Lager; E. Heyman;

In*7th European Conference on Antennas and Propagation*,

April 2013.**Leaky Lens Antennas and Kinetic Inductance Detectors - The Solution for THz Integration**

A. Neto; N. Llombart; I. E. Lager; J. J. A. Baselmans; A. Baryshev; S. Yates;

In*43th European Microwave Conference*,

October 2013.**Loop-to-loop pulsed electromagnetic field signal transfer in layered configurations -- application to inter-chip wireless communication**

V. Voogt; I. E. Lager; B. J. Kooij;

In*7th European Conference on Antennas and Propagation*,

April 2013.**Model pulses for performance prediction of digital microlectronic systems**

I. E. Lager; A. T. de Hoop; T. Kikkawa;*IEEE Transactions on Components, Packaging and Manufacturing Technology*,

Volume 2, Issue 11, pp. 1859-1870, November 2012.

document**Architecture and Design Procedure of a Generic SWB Antenna with Superb Performances for Tactical Commands and Ubiquitous Communications**

DP Tran; N Haider; SE Valavan; IE Lager; A Szilagyi; A Yarovoy; LP Ligthart;

MA Matin (Ed.);

Intech, , pp. 153--184, 2012.**Mutual coupling in non-uniform array antennas - An effective recipe**

I. E. Lager; M. Simeoni;

In*6th European Conference on Antennas and Propagation*,

March~26-30 2012.**Pulsed-field wireless interconnects in digital integrated circuits - A time-domain signal transfer and electromagnetic emission analysis**

I. E. Lager; A. T. de Hoop; T. Kikkawa;

In*6th European Conference on Antennas and Propagation*,

March~26-30 2012.**Radiation properties of non-uniform array antennas**

I. E. Lager; M. Simeoni;

In*42nd European Microwave Conference*,

October 2012.**Loop-to-loop pulsed electromagnetic field wireless signal transfer**

I. E. Lager; A. T. de Hoop;

In*6th European Conference on Antennas and Propagation*,

March~26-30 2012.**Pulsed-field EMI susceptibility analysis of microelectronic circuits - A full time-domain methodology**

A. T. de Hoop; H. Blok; I. E. Lager; M. Stumpf; G. A. E. Vandenbosch;

In*42nd European Microwave Conference*,

October 2012.**Pulsed electromagnetic field radiation from a wide slot antenna with a dielectric layer**

M. Stumpf; A. T. de Hoop; I. E. Lager;*IEEE Transactions on Antennas and Propagation*,

Volume 59, Issue 8, pp. 2789-2798, August 2011.

document**On the array performance of printed, ultra wide-band 'Eared' antennas**

F. M. Tanyer - Tigrek; I. E. Lager; L. P. Ligthart;*IEEE Antennas and Propagation Magazine*,

Volume 53, Issue 5, pp. 57-64, October 2011.

document**A super wideband antenna**

DP Tran; A Szilagyi; IE Lager; PJ Aubry; LP Ligthart; A Yarovoy;

M Orefice (Ed.);

IEEE society, , pp. 2656--2660, 2011.**Time-domain receiving properties of a multimode cylindrical waveguide antenna**

I. E. Lager; A. T. de Hoop;

In*5th European Conference on Antennas and Propagation*,

April 2011.**Electromagnetic focusing in biological tissues**

W. M. Brink; I. E. Lager; B. J. Kooij;

In*5th European Conference on Antennas and Propagation*,

April 2011.**A super wideband antenna**

D. P. Tran; A. Szilagyi; I. E. Lager; P. Aubry; L. P. Ligthart; A. G. Yarovoy;

In*5th European Conference on Antennas and Propagation*,

April 2011.**Puzzling radiators - Functionality enhancement by means of shared aperture antennas**

I. E. Lager; M. Simeoni; C. I. Coman; C. Trampuz; L. P. Ligthart; P. van Genderen;

In*33rd ESA Antenna Workshop on Challenges for Space Antenna Systems*,

Noordwijk, The Netherlands, October 2011.**Pulsed fields EM interference analysis in digital signal wireless interconnects**

A. T. de Hoop; I. E. Lager;

In*41st European Microwave Conference*,

October 2011.**On the operating principles of UWB, CPW-fed printed antennas**

F. M. Tanyer - Tigrek; A. Hizal; I. E. Lager; and L. P. Ligthart;*IEEE Antennas and Propagation Magazine*,

Volume 52, Issue 3, pp. 46-50, June 2010.

document**A CPW-fed printed loop antenna for ultra wideband applications, and its linear array performance**

F. M. Tanyer - Tigrek; I. E. Lager; L. P. Ligthart;*IEEE Antennas and Propagation Magazine*,

Volume 52, Issue 4, pp. 31-40, August 2010.

document**Pulsed electromagnetic field radiation from a narrow slot antenna with a dielectric layer**

M. Stumpf; A. T. de Hoop; I. E. Lager;*Radio Science*,

Volume 45, October 2010.

document**Multicriteria optimization of antennas in time-domain**

J. Láčk; I. E. Lager; Z. Raida;*Radio-engineering*,

Volume 19, Issue 1, pp. 105-110, April 2010.

document**Experimental validation of a linear array consisting of CPW fed, UWB, printed, loop antennas**

F. M. Tanyer - Tigrek; I. E. Lager; L. P. Ligthart;*IEEE Transactions on Antennas and Propagation*,

Volume 58, Issue 4, pp. 1411-1414, April 2010.

document**On the design of a super wide band antenna**

DP Tran; PJ Aubry; A Szilayi; IE Lager; A Yarovoy; LP Ligthart;

B Lembrikov (Ed.);

Sciyo, , pp. 399--426, 2010.**Sparse antenna array for earth-coverage satellite applications**

MC Vigano; G Toso; P Angeletti; IE Lager; A Yarovoy; D Caratelli;

s.n. (Ed.);

IEEE society, , pp. 1--4, 2010.**Experimental validation of the UWB 'Eared' antenna for impulse radio applications**

F. M. Tanyer-Tigrek; I. E. Lager; L. P. Ligthart;

In*4th European Conference on Antennas and Propagation*,

April 2010.**Sunflower sparse array for space applications: from design to manufacturing**

M. C. Vigano; G. Caille; C. Mangenot; I. E. Lager; G. Toso;

In*4th European Conference on Antennas and Propagation*,

April 2010.**Application of the shared aperture antenna concept to radar front-ends: advantages and limitations**

I. E. Lager; C. Trampuz; M. Simeoni; C. I. Coman; L. P. Ligthart;

In*4th European Conference on Antennas and Propagation*,

April 2010.**Sparse antenna array for earth-coverage satellite applications**

M.C. Vigano; G. Toso; P. Angeletti; I. E. Lager; A. G. Yarovoy; D. Caratelli;

In*4th European Conference on Antennas and Propagation*,

April 2010.**Sparse planar array synthesis technique for satellite applications**

M. C. Vigano; G. Caille; G. Toso; C. Mangenot; I. E. Lager;

In*IEEE Antennas and Propagation Symposium*,

July 2010.**Interleaved array antennas design - (Almost) deterministic strategies**

M. Simeoni; I. E. Lager; C. I. Coman; C. Trampuz;

In*Progress in Electromagnetic Research Symposium (PIERS 2010)*,

July 2010.

document**The relativity of bandwidth - the pursuit of truly ultra wideband radiators for communication applications**

I. E. Lager; L. P. Ligthart; D. P. Tran; F. M. Tanyer-Tigrek; M. Simeoni; P. van Genderen; A. Szilagyi; C. I. Coman;

In*8th International Conference on Communications*,

June 2010.**Experimental characterization of channel crosstalk in interleaved array antennas for FMCW radar**

C. Trampuz; I. E. Lager; M. Simeoni; L. P. Ligthart;

In*7th European Radar Conference*,

September 2010.**Inter-chip and intra-chip pulsed signal transfer between transmitting and receiving loops in wireless interconnect configurations**

I. E. Lager; A. T. de Hoop;

In*40th European Microwave Conference*,

September 2010.**Non-dispersive, UWB leaky lens antenna for millimeter and submillimeter wave frequencies**

A. Neto; I. E. Lager;

In*20th International Conference on Applied Electromagnetics and Communications*,

Dubrovnik, Croatia, September 2010.

document**Closed-form time-domain expressions for the 2D pulsed EM field radiated by an array of slot antennas of finite width**

M. Stumpf; A. T. de Hoop; I. E. Lager;

In*20th URSI International Symposium on Electromagnetic Theory*,

Berlin, Germany, pp. 703-706, August 2010.

document**Interleaved array antennas for FMCW radar applications**

I. E. Lager; C. Trampuz; M. Simeoni; L.P. Ligthart;*IEEE Transactions on Antennas and Propagation*,

Volume 57, Issue 8, pp. 2486-2490, August 2009.

document**Implementation of polarization agility in planar phased-array antennas by means of interleaved sub-arrays**

M. Simeoni; I. E. Lager; C. I. Coman; A.G. Roederer;*Radio Science*,

Volume 44, Issue 5, October 2009.

document**CPW-fed, quasi-magnetic, printed antenna for ultra wide-band applications**

F. M. Tanyer-Tigrek; D. P. Tran; I. E. Lager; L.P. Ligthart;*IEEE Antennas and Propagation Magazine*,

Volume 51, Issue 2, pp. 61-70, April 2009.

document**Sunflower array antenna with adjustable density taper**

M. C. Vigano; G. Toso; G. Caille; C. Mangenot; I. E. Lager;*International Journal of Antennas and Propagation*,

January 2009.

document**The pulsed-field multiport antenna system reciprocity relation and its applications - A time-domain approach**

A. T. de Hoop; I. E. Lager; V. Tomassetti;*IEEE Transactions on Antennas and Propagation*,

Volume 57, Issue 3, pp. 594-605, March 2009.

document**A novel unidirectional radiator with superb UWB characteristics for X-band phased array applications**

D. P. Tran; F. M. Tanyer - Tigrek; I. E. Lager; L. P. Ligthart;

In*3rd European Conference on Antennas and Propagation*,

March~23-27 2009.**Design of an AMC plane for a unidirectional, low profile Tulip antenna**

F. M. Tanyer - Tigrek; R. M. Mateos; C. Craeye; I. E. Lager;

In*3rd European Conference on Antennas and Propagation*,

March~23-27 2009.**Channel crosstalk analysis in interleaved array antennas for FMCW radar**

C. Trampuz; I. E. Lager; M. Simeoni; L. P. Ligthart;

In*39th European Microwave Conference*,

September 2009.**Low sidelobe interleaved transmit-receive antennas for FMCW radar applications**

C. Trampuz; M. Simeoni; I. E. Lager; L. P. Ligthart;

In*IEEE Antennas and Propagation Symposium*,

June 2009.**Spatial density tapered sunflower antenna array**

M. C. Vigano; G. Toso; G. Caille; C. Mangenot; I. E. Lager;

In*3rd European Conference on Antennas and Propagation*,

March~23-27 2009.**Wideband tulip loop antenna**

F. M. Tanyer-Tigrek; D. P. Tran; I. E. Lager; L. P. Ligthart;

In*3rd European Conference on Antennas and Propagation*,

March~23-27 2009.**Efficient and accurate investigation of linear arrays consisting of UWB radiators**

F. M. Tanyer-Tigrek; I. E. Lager; L. P. Ligthart;

In*39th European Microwave Conference*,

September 2009.**Radiation properties of array antennas deployed on hexagonal lattices**

M. C. Vigano; M. Simeoni; I. E. Lager;

In*30th ESA Antenna Workshop on Antennas for Earth Observation, Science, Telecommunication and Navigation Space Missions*,

Noordwijk, The Netherlands, pp. 118-121, May 2008.**Over 150% bandwidth, quasi-magnetic, printed antenna**

F. M. Tanyer - Tigrek; D. P. Tran; I. E. Lager; and L. P. Ligthart;

In*IEEE Antennas and Propagation Society International Symposium*,

July 2008.**Open-ended triangular waveguide antenna**

M. Simeoni; M. C. Vigano; I. E. Lager;

In*IEEE Antennas and Propagation Society International Symposium*,

July 2008.**Projection based methodology for designing non-periodic, planar arrays**

M.C. Vigano; I. E. Lager; G. Toso; C. Mangenot; G. Caille;

In*38th European Microwave Conference*,

October 2008.**A novel uni-directional, off-axis CPW-Fed, matched by unbalanced fork-stub, UWB ring slot antenna printed on single layer PCB with back plane**

D. P. Tran; F. M. Tanyer - Tigrek; I. E. Lager; L. P. Ligthart;

In*IEEE Antennas and Propagation Symposium*,

July 2008.**Complementarity based design of antenna systems for FMCW radar**

C. Trampuz; M. Simeoni; I. E. Lager; L .P. Ligthart;

In*5th European Radar Conference*,

October 2008.**Measurement of electrically large array antennas in small anechoic chambers**

M. Simeoni; I. E. Lager; C. I. Coman;*IEEE Antennas and Propagation Magazine*,

Volume 49, Issue 2, pp. 100-106, April 2007.

document**The design of shared aperture antennas consisting of differently sized elements**

C. I. Coman; I. E. Lager; L.P. Ligthart;*IEEE Transactions on Antennas and Propagation*,

Volume 54, Issue 2, pp. 376-383, February 2006.

document**Patch end-launchers - A family of compact colinear coaxial-to-rectangular waveguide transitions**

M. Simeoni; C. I. Coman; I. E. Lager;*IEEE Transactions on Microwave Theory and Techniques*,

Volume 54, Issue 4, pp. 1503-1511, April 2006.

document**Activities in ace wp 2.3-1 on wideband and multiband radiators**

M Bonnedal; E Angelopoulos; E Antonio; P Balling; K Chan; R Erickson; IE Lager; W Sorgel; E Ubeda; A Yarovoy;

H Lacoste; L Ouwehand (Ed.);

ESA, , pp. 1--6, 2006.**WGEMLab - A simulation platform for the analysis of rectangular waveguide aperture radiation**

I. E. Lager; C. I. Coman; A.T. de Hoop;*IEEE Transactions on Magnetics*,

Volume 39, Issue 3, pp. 1697-1700, May 2003.

document**Application of the domain-integrated field relations method to the solution of large scale static and stationary magnetic field problems**

I. E. Lager; G. Mur;*IEEE Transactions on Magnetics*,

Volume 38, Issue 2, pp. 465-468, March 2003.

document**Finite formulation and domainintegrated field relations in electromagnetics - A synthesis**

I. E. Lager; E. Tonti; A. T. de Hoop; G. Mur; M. Marrone;*IEEE Transactions on Magnetics*,

Volume 39, Issue 3, pp. 1199-1202, May 2003.

document**On the causes of spurious solutions in electromagnetics**

G. Mur; I. E. Lager;*Electromagnetics*,

Volume 22, Issue 4, pp. 357-367, May 2002.

document**The space-time integrated model of electromagnetic field computation**

A. T. de Hoop; I. E. Lager; P. Jorna;*Electromagnetics*,

Volume 22, Issue 5, pp. 371-379, May 2002.

document**Domain-integrated field equations approach to static magnetic field computation - Application to some two-dimensional configurations**

A. T. de Hoop; I. E. Lager;*IEEE Transactions on Magnetics*,

Volume 36, Issue 4, pp. 654-658, July 2000.

document**A finite-element method for modeling of electromagnetic fields using generalized cartesian elements**

G. Mur; I. E. Lager;*IEEE Transactions on Magnetics*,

Volume 35, Issue 3, pp. 1376-1379, May 1999.

document**A note on the uniqueness of a class of non-linear electrostatic field problems**

A. T. de Hoop; I. E. Lager;*IEE Proceedings Science, Measurement and Technology*,

Volume 146, Issue 4, pp. 175-181, July 1999.

document**Static magnetic field computation - An approach based on the domain-integrated field equations**

A. T. de Hoop; I. E. Lager;*IEEE Transactions on Magnetics*,

Volume 34, Issue 5, pp. 3355-3358, September 1998.

document**Least-squares minimising finite-element formulation for static and stationary electric and magnetic fields**

I. E. Lager; G. Mur;*IEEE Transactions on Magnetics*,

Volume 34, Issue 5, pp. 2419-2424, September 1998.

document**Generalized Cartesian finite elements**

I. E. Lager; G. Mur;*IEEE Transactions on Magnetics*,

Volume 34, Issue 4, pp. 2220-2227, July 1998.

document**Finite element method for stationary and static electromagnetic fields**

I. E. Lager; G. Mur;*Journal of Applied Physics*,

Volume 81, Issue 8, pp. 4079-4081, April 1997.**The finite element modeling of static and stationary electric and magnetic fields**

I. E. Lager; G. Mur;*IEEE Transactions on Magnetics*,

Volume 32, Issue 3, pp. 631-634, July 1996.

document**Compatibility relations for time-domain and static electromagnetic field problems**

I. E. Lager; G. Mur;*Applied Computational Electromagnetics Society Journal*,

Volume 9, Issue 2, pp. 25-29, July 1991.