Now showing items 1-18 of 18

    • A new class of antenna array with a reconfigurable element factor 

      Li, Zhouyuan; Rodrigo López, Daniel; Jofre Roca, Lluís; Cetiner, Bedri Artug (2013-04)
      Article
      Restricted access - publisher's policy
      A parasitic layer-based multifunctional reconfigurable antenna array (MRAA) formed by the linear combination of four (4 1) identical multifunctional reconfigurable antenna (MRA) elements is presented. Each MRA produces ...
    • A quad-band antenna for public safety applications 

      Mopidevi, Hema Swaroop; Damgaci, T; Rodrigo López, Daniel; Jofre Roca, Lluís; Cetiner, Bedri Artug (2014-01-01)
      Article
      Restricted access - publisher's policy
      The design, fabrication, and characterization of a frequency-reconfigurable antenna for the United States Public Safety (PS) wireless communication applications are presented. This antenna is quad-band operating in the PS ...
    • A reconfigurable antenna with beam steering and beamwidth variability for wireless communications 

      Towfiq, Asaduzzaman; Bahceci, Israfil; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís; Cetiner, Bedri Artug (2018-07-12)
      Article
      Open Access
      A reconfigurable antenna (RA) capable of steering its beam into the hemisphere corresponding to ¿ ¿ {-40°,0°,40°}, Ø ¿ {0°,45°,90°,-45°}, and of changing 3-dB beamwidth, where ¿3dB ¿ (40°,100°), Ø ¿ {45°,90°,-45°} for ...
    • Antenna reconfigurability based on a novel parasitic pixel layer 

      Rodrigo López, Daniel; Damgaci, Yasin; Unlu, M.; Cetiner, Bedri Artug; Romeu Robert, Jordi; Jofre Roca, Lluís (2011)
      Conference report
      Restricted access - publisher's policy
      A novel reconfiguration method based in the use of pixel surfaces as parasitic elements is presented. This concept can be used to provide reconfigurability to a wide variety of non-reconfigurable antennas without requiring ...
    • Circular beam-steering reconfigurable antenna with liquid metal parasitics 

      Rodrigo López, Daniel; Jofre Roca, Lluís; Cetiner, Bedri Artug (2012-04)
      Article
      Restricted access - publisher's policy
      A novel antenna reconfiguration mechanism based on the displacement of liquid metal sections is presented. The liquid nature of the moving parts of the antenna helps avoid the main disadvantage of mechanically-actuated ...
    • Error vector magnitude, intermodulation and radiation characteristics of a bandwidth and pattern reconfigurable antenna 

      Towfiq, Asaduzzaman; Khalat, Abdurazag Mohamed; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís; Cetiner, Bedri Artug (2019-10)
      Article
      Open Access
      This letter presents the error vector magnitude (EVM), intermodulation (IM), and radiation performances of a reconfigurable antenna capable of varying its bandwidth between 3.4-3.6 and 3.1-3.9 GHz bands, and steering its ...
    • Frequency, radiation pattern and polarization reconfigurable antenna using a parasitic pixel layer 

      Rodrigo López, Daniel; Cetiner, Bedri Artug (2014-06-01)
      Article
      Restricted access - publisher's policy
      This communication presents a reconfigurable antenna capable of independently reconfiguring the operating frequency, radiation pattern and polarization. A switched grid of small metallic patches, known as pixel surface, ...
    • Genetic reconfigurability of a multi-size pixelled antenna 

      Rodrigo López, Daniel; Jofre Roca, Lluís; Unlu, M.; Damgaci, Yacine; Cetiner, Bedri Artug; Romeu Robert, Jordi (2010)
      Conference report
      Open Access
    • MEMS-reconfigurable antenna based on a multi-size pixelled geometry 

      Rodrigo, Daniel; Damgaci, T.; Cetiner, Bedri Artug; Romeu Robert, Jordi; Jofre Roca, Lluís (2010)
      Conference report
      Open Access
      A MEMS reconfigurable antenna with beam steering capability and resonance frequency reconfigurability is presented. The design is based in an interconnected patch grid structure and employs a hybrid geometry with different ...
    • Miniature multi-element antenna for wireless communications 

      Jofre Roca, Lluís; Cetiner, Bedri Artug; Flaviis, Franco de (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2002-05-31)
      Article
      Open Access
      We present a novel broad-band miniature antenna and employ it in a multi-element geometry with diversity capabilities for wireless communications. This antenna (diameter < 0.2 λ and thickness < 0.06 λ) consists of two ...
    • Parasitic layer-based reconfigurable antenna design by multi-objective optimization 

      Yuan, Xiaoyan; Li, Zhouyuan; Rodrigo López, Daniel; Mopidevi, Hema Swaroop; Kaynar, Oguz; Jofre Roca, Lluís; Cetiner, Bedri Artug (2012-06)
      Article
      Restricted access - publisher's policy
      A parasitic layer-based multifunctional reconfigurable antenna (MRA) design based on multi-objective genetic algorithm optimization used in conjunction with full-wave EM analysis is presented. TheMRA is capable of ...
    • Pixel reconfigurable antennas: towards low-complexity full reconfiguration 

      Rodrigo López, Daniel; Romeu Robert, Jordi; Cetiner, Bedri Artug; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      The explosive growth of wireless communications has brought new requirements in terms of compactness, mobility and multi-functionality that make reconfigurable antennas excellent candidates for future wireless networks. ...
    • Polarization reconfigurable MEMS-CPW antenna for mm-wave applications 

      Balcells Ventura, Jordi; Damgaci, T.; Cetiner, Bedri Artug; Romeu Robert, Jordi; Jofre Roca, Lluís (2010)
      Conference report
      Open Access
      This letter presents a polarization reconfigurable MEMS-integrated coplanar patch antenna for mm-wave applications. The polarization of the field radiated by this reconfigurable antenna can be configured into right-handed ...
    • RF MEMS reconfigurable two-band antenna 

      Zohur, Abdul; Mopidevi, Hema Swaroop; Rodrigo López, Daniel; Unlu, M.; Jofre Roca, Lluís; Cetiner, Bedri Artug (2013-01-09)
      Article
      Restricted access - publisher's policy
    • Small pixelled antenna with mems-reconfigurable radiation pattern 

      Rodrigo López, Daniel; Damgaci, Yacine; Unlu, M.; Jofre Roca, Lluís; Cetiner, Bedri Artug (2010)
      Conference report
      Open Access
    • Small-size broadband multi-element antenna for RF/wireless systems 

      Cetiner, Bedri Artug; Jofre Roca, Lluís; Qian, J. Y.; Flaviis, Franco de (IEEE, 2003-10-31)
      Article
      Open Access
      We present a small-size broadband antenna specifically designed for integration with RF/wireless communication systems. The antenna is built on a printed circuit board and fed by a coplanar waveguide (CPW) to allow further ...
    • Study of interconnecting switch currents in reconfigurable parasitic layer antennas 

      Ramirez, German; Araque, Javier; Ballesteros Sánchez, Christian; Blanch Boris, Sebastián; Romeu Robert, Jordi; Cetiner, Bedri Artug; Jofre Roca, Lluís (2019)
      Conference lecture
      Restricted access - publisher's policy
      This work presents an approach for calculating the currents across the switches of a reconfigurable parasitic layer intended to add beam-steering capabilities to a reference antenna. The method of analysis is based on the ...
    • Three-dimensional microfabricated broadband patch antenna for wiGig applications 

      Mopidevi, Hema Swaroop; Hurneli, H. V.; Cagatay, E.; Biyikli, N.; Imbert Villà, Marc; Romeu Robert, Jordi; Jofre Roca, Lluís; Cetiner, Bedri Artug (2014-01-01)
      Article
      Restricted access - publisher's policy
      The design, microfabrication, and characterization of a broadband patch antenna capable of covering the entire IEEE 802.11ad (WiGig) frequency band (57-66 GHz) are presented in this letter. A conductor-backed (CB) coplanar ...