New smart beamforming – analysis and designs


  • Jozef Modelski Warsaw University of Technology, Poland
  • Yevhen M. Yashchishyn Warsaw University of Technology, Poland



phased-array antenna, adaptive antenna, null-steering, beam-forming, ferroelectric material, semiconductor, surface p-i-n diode


The results of investigation of a typical adaptive antenna array, a low cost method of a multi-null-steering with comparison to the conventional one, and analysis, design and investigation of the new type of scan antennas without using phase shifters for beam-scanning have been presented.


CHAND, GODARA LAL. Smart Antennas. CRC Press, 2004.

MONZIGO, R.A.; MILLER, T.W. Introduction to Adaptive Arrays. Wiley&Sons, 1980.

PIASECKI, M.; YASHCHYSHYN, Y.; MODELSKI, J. Theoretical and practical investigation of a four-element smart antenna. Proc. of 7th European Conf. on Wireless Technology, 11-12 October 2004, Amsterdam, The Netherlands. IEEE, 2004, p.213-216,

DAWOUD, M.M.; NURUZZAMAN, M. Null steering in rectangular planar arrays by amplitude control using genetic algorithms. Int. J. Electronics, Dec. 1, 2000, v.87, n.12, p.1473-1484, doi:

LIAO, WEN-PIN; CHU, FU-LAI. Null steering in planar arrays by controlling only current amplitudes using genetic algorithms. Microwave and Optical Technology Letters, 5 October 1997, v.16, n.2, p.97-103, doi:<97::AID-MOP11>3.0.CO;2-5.

GAO, TIE; GUO, YANCHANG; LI, J. Wide null and low sidelobe synthesis for phased array antennas. Proc. of Asia-Pacific Microwave Conf., APMC '93, Oct. 1993, Hsinchu, Taiwan. IEEE, 1993, v.1, p. 42-45, doi:

ANANASSO, F. Nulling performance of null-steering arrays with digital phase-only weights. Electron. Lett., Apr. 2, 1981, v.17, n.7, p.255-257, doi:

HU, JIN-LIN; MA, YAN; LIN, SHI-MING. Deep null steering by controlling excitation phases of part elements. Int. J. Electronics, 1997, v.83, n.5, p.661-666, doi:

BROWN, ALISON; TAYLOR, KEITH; KURTZ, RANDY; TSENG, HUAN-WAN. Kinematic test results of miniaturized GPS antenna array with digital beamsteering electronics. Proc. of ION National Technical Meeting, Jan. 2000, Anaheim, CA.

HICKS, D.S. Null steering in linear arrays by using amplitude control of signals in the feeder network. Electron. Lett., Mar. 1977, v.13, n.7, p.198-199, doi:

STARSZUK, G.; YASHCHYSHYN, Y. Null of radiation pattern steering by control amplitude of signal combination. Proc. of 15th Int. Conf. on Microwaves, Radar and Wireless Communications, MIKON'2004, 17-18 May 2004, Warsaw, Poland. IEEE, 2004, v.1, p.66-69, doi:

YASHCHYSHYN, Y.; STARSZUK, G. Investigation of a simple four-element null-steering antenna array. IEE Proc. Microwaves, Antennas and Propagation, Apr. 2005, v.152, n.2, p.92-96, doi:

MENZEL, WOLFGANG. A New Traveling-Wave Antenna in Microstrip. Proc. of 8th European Microwave Conf., 4-8 Sept. 1978, Paris, France. IEEE, 1978, p.302-306, doi:

YASHCHYSHYN, Y.; MODELSKI, J. Rigorous analysis and investigations of the scan antennas on a ferroelectric substrate. IEEE Trans. Microwave Theory and Techniques, 2005, v.53, n.2, p.427-438, doi:

SOR, James; CHANG, CHIN-CHANG; QIAN, YONGXI; ITOH, T. A reconfigurable leaky-wave/patch microstrip aperture for phased-array applications. IEEE Trans. Microwave Theory and Techniques, Aug. 2002, v.50, n.8, p. 1877-1884, doi:

TAYLOR, G.C.; ROSEN, A.; FATHY, E.; SWAIN, P.K.; PERLOW, S.M. Surface PIN device. US Pat. No.: US 6,617,670 B2, Sept. 9, 2003.

CETINER, B.A.; JAFARKHANI, HAMID; QIAN, JIANG-YUAN; YOO, HUI Jae; GRAU, A.; De FLAVIIS, F. Multifunctional reconfigurable MEMS integrated antennas for adaptive MIMO systems. IEEE Communication Magazine, Dec. 2004, v.42, n.12, p.62-70, doi:

MODELSKI, J.; YASHCHYSHYN, Y. Voltage-controlled ferroelectric microstrip antenna for phased arrays. Proc. of 2000 IEEE Int. Symp. on Antennas and Propagation Society, July 16-21, 2000, Salt Lake City, Utah, USA. IEEE, 2000, v.2, p.506-509, doi:

MODELSKI, J.; YASHCHYSHYN, Y. Null pattern synthesis of ferroelectric smart antennas. IEEE MTT-S Int. Microwave Symp. Digest, May 20-25, 2001, Phenix, Arizona, USA. IEEE, 2001, v.1, p.467-470, doi:

MODELSKI, J.; YASHCHYSHYN, Y. New method of antenna arrays pattern synthesis. Proc. of 31th European Microwave Conf., EuMC 2001, September 24-26, 2001, London, England. IEEE, 2001, p.1-4, doi: