Broadband High Efficiency Single-Layer Reflectarray Antenna Based on Spiral Crosses

─ This paper presents the design and analysis of a broadband high gain reflectarray antenna based on a novel radiating element, named spiral cross, that has been investigated showing high performance capabilities. The unit cell and the reflectarray antenna have been analyzed by using a full-wave Moment Method code. The proposed antenna exhibits excellent polarization purity, an aperture efficiency of 43.5 %, and a 25.3% bandwidth for 3-dB gain reduction operating at 20 GHz. Index Terms Broadband antenna, cross polarization, and reflectarrays.

[1]  A. Ittipiboon,et al.  A broadband reflectarray antenna with double square rings as the cell elements , 2006, 2006 First European Conference on Antennas and Propagation.

[2]  P. Robustillo,et al.  ANN Characterization of Multi-Layer Reflectarray Elements for Contoured-Beam Space Antennas in the Ku-Band , 2012, IEEE Transactions on Antennas and Propagation.

[3]  E. Carrasco,et al.  Reflectarray Element Based on Aperture-Coupled Patches With Slots and Lines of Variable Length , 2007, IEEE Transactions on Antennas and Propagation.

[4]  I. Gonzalez,et al.  Optimization of a Dual-Band Helical Antenna for TTC Applications at S Band , 2012, IEEE Antennas and Propagation Magazine.

[5]  J. A. Encinar.  DESIGN OF A DUAL FREQUENCY REFLECTARRAY USING MICROSTRIP STACKED PATCHES OF VARIABLE SIZE , 1996 .

[6]  Atef Z. Elsherbeni,et al.  A broadband microstrip reflectarray using sub-wavelength patch elements , 2009, 2009 IEEE Antennas and Propagation Society International Symposium.

[7]  M. Cuhaci,et al.  A broadband reflectarray antenna with double square rings , 2006 .

[8]  H. Hasani,et al.  Broadband Reflectarray Antenna Incorporating Disk Elements With Attached Phase-Delay Lines , 2010, IEEE Antennas and Wireless Propagation Letters.

[9]  Ahmed A. Kishk,et al.  Perforated Dielectric Resonator Antenna Reflectarray , 2011 .

[10]  Dau-Chyrh Chang,et al.  Multiple-polarization microstrip reflectarray antenna with high efficiency and low cross-polarization , 1995 .

[11]  J. Huang,et al.  An Offset-Fed X-Band Reflectarray Antenna Using a Modified Element Rotation Technique , 2012, IEEE Transactions on Antennas and Propagation.

[12]  A. Ludwig.  The definition of cross polarization , 1973 .

[13]  A. Edalati,et al.  Wideband reflectarray antenna based on miniaturized element frequency selective surfaces , 2012, 2012 6th European Conference on Antennas and Propagation (EUCAP).

[14]  A. Sebak,et al.  A Broadband Reflectarray Antenna using the Triangular Array Configuration , 2011 .

[15]  I. González,et al.  Design of a Compact Circular Waveguide Antenna of Low Polarization Level using EBG Structures , 2011 .

[16]  Atef Z. Elsherbeni,et al.  Gain and Bandwidth Limitations of Reflectarrays , 2011 .

[17]  Jose Ramon Almagro,et al.  Design and Optimization of an EBG Antenna with an Efficient Electromagnetic Solver , 2012 .