scholarly journals Multifeed EBG Dual-Band Antenna for Spatial Mission

2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
A. Kanso ◽  
R. Chantalat ◽  
U. Naeem ◽  
H. Chreim ◽  
M. Thevenot ◽  
...  
Keyword(s):  
Band Gap ◽  
Longitudinal Direction ◽  
High Gain ◽  
Reflector Antenna ◽  
Dual Band ◽  
Frequency Selective Surfaces ◽  
Radiation Characteristics ◽  
Space Applications ◽  
Electromagnetic Band Gap ◽  
Dual Band Antenna

We present the design of a multibeam reflector antenna fed by a multifeed dual-band electromagnetic band gap (EBG) antenna to achieve a high-gain multispot coverage for space applications. First, we design a dual-band EBG antenna in monofeed configuration. This antenna is composed of double-layer frequency selective surfaces (FSSs) arranged in the longitudinal direction and a square horn as a feed. Then, the same antenna in multifeed configuration is studied, and the results are compared to those obtained in monofeed configuration in order to emphasize the problem of coupling, generally encountered in multifeed configuration. Consequently, filters are used in order to reduce the parasitic interferences and obtain good radiation characteristics. As shown in this paper, the same EBG phase center is obtained in both frequency bands. Finally, we have studied the whole system composed of the offset reflector and the multifeed EBG dual-band antenna. An edge of coverage (EOC) gain higher than 42 dBi and sidelobes levels lower than −18 dBi are obtained over all spots.

Dual band electromagnetic band gap resonator antenna to feed a reflector antenna

2010 ◽  
Vol 52 (8) ◽  
pp. 1750-1756
Author(s):  
A. Kanso ◽  
R. Chantalat ◽  
M. Thevenot ◽  
T. Monediere ◽  
E. Arnaud ◽  
...  
Keyword(s):  
Band Gap ◽  
Reflector Antenna ◽  
Dual Band ◽  
Electromagnetic Band Gap

scholarly journals ENHANCED LOW PROFILE, DUAL-BAND ANTENNA VIA NOVEL ELECTROMAGNETIC BAND GAP STRUCTURE

2017 ◽  
Vol 71 ◽  
pp. 79-89 ◽  
Author(s):  
Mohammad El Ghabzouri ◽  
Abdenacer Es Salhi ◽  
Pedro Anacleto ◽  
Paulo Mendes
Keyword(s):  
Band Gap ◽  
Dual Band ◽  
Electromagnetic Band Gap ◽  
Dual Band Antenna ◽  
Low Profile ◽  
Band Gap Structure ◽  
Gap Structure

Bandwidth improvement of planar antennas using a single-layer metamaterial substrate for X-band application

2020 ◽  
Vol 12 (9) ◽  
pp. 906-914
Author(s):  
O. Borazjani ◽  
M. Naser-Moghadasi ◽  
J. Rashed-Mohassel ◽  
R. A. Sadeghzadeh
Keyword(s):  
Microstrip Antenna ◽  
Single Layer ◽  
Dual Band ◽  
Planar Antennas ◽  
Radiation Characteristics ◽  
Dual Band Antenna ◽  
X Band ◽  
Field Radiation ◽  
Metallic Ring ◽  
Good Agreement

AbstractTo prevent far-field radiation characteristics degradation while increasing bandwidth, an attempt has been made to design and fabricate a microstrip antenna. An electromagnetic band gap (EBG) structure, including a layer of a metallic ring on a layer of Rogers 4003C substrate, is used. For a better design, a patch antenna with and without the EBG substrate has been simulated. The results show that the bandwidth can be improved up to 1.6 GHz in X-band by adding the EBG substrate. Furthermore, using this structure, a dual-band antenna was obtained as well. Finally, to validate the simulation results, a comparison has been done between simulation data and experimental results which demonstrate good agreement.

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