High‐gain dual‐band dual‐polarised electromagnetic band gap resonator antenna with an all‐dielectric superstructure

2015 ◽  
Vol 9 (10) ◽  
pp. 1059-1065 ◽  
Author(s):  
Basit Ali Zeb ◽  
Karu P. Esselle
2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
A. Kanso ◽  
R. Chantalat ◽  
U. Naeem ◽  
H. Chreim ◽  
M. Thevenot ◽  
...  

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.


2012 ◽  
Vol 60 (10) ◽  
pp. 4522-4529 ◽  
Author(s):  
Basit Ali Zeb ◽  
Yuehe Ge ◽  
Karu P. Esselle ◽  
Zhu Sun ◽  
Michael E. Tobar

Frequenz ◽  
2017 ◽  
Vol 71 (11-12) ◽  
Author(s):  
Naveen Jaglan ◽  
Binod Kumar Kanaujia ◽  
Samir Dev Gupta ◽  
Shweta Srivastava

AbstractA dual band-notched MIMO/Diversity antenna is proposed in this paper. The proposed antenna ensures notches in WiMAX band (3.3–3.6 GHz) besides WLAN band (5–6 GHz). Mushroom Electromagnetic Band Gap (EBG) arrangements are employed for discarding interfering frequencies. The procedure followed to attain notches is antenna shape independent with established formulas. The electromagnetic coupling among two narrowly set apart Ultra-Wide Band (UWB) monopoles is reduced by means of decoupling bands and slotted ground plane. Monopoles are 90° angularly parted with steps on the radiator. This aids to diminish mutual coupling and also adds in the direction of impedance matching by long current route. S


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