Analysis of the Influence of Large Ground Radome on the Radiation Characteristics of Array Antenna

2020 ◽  
Author(s):  
Wang Luya ◽  
Zhai Chang ◽  
Zhao Xunwang ◽  
Lin Zhongchao
Keyword(s):  
Array Antenna ◽  
Radiation Characteristics

scholarly journals Design of a side-feed rectangular waveguide helical array antenna with fan-beam radiation characteristics

2020 ◽  
Vol 1633 ◽  
pp. 012083
Author(s):  
Donghua Wu ◽  
Xiankai Liu ◽  
Jin Luan ◽  
Fujie Jiang ◽  
Yi Tian ◽  
...  
Keyword(s):  
Rectangular Waveguide ◽  
Array Antenna ◽  
Radiation Characteristics ◽  
Beam Radiation

scholarly journals Corporate Feed, Compact 2X2 Array Antenna With Enhanced Radiation Characteristics using Metamaterial Structure

2019 ◽  
Vol 8 (4) ◽  
pp. 2807-2812
Keyword(s):  
Mutual Coupling ◽  
Transverse Electric ◽  
Side Lobe ◽  
Transverse Magnetic ◽  
Array Antenna ◽  
Magnetic Conductor ◽  
Radiation Characteristics ◽  
High Impedance ◽  
Unit Cells ◽  
High Impedance Surface

In current study, mushroom type metamaterial substrate is designed to operate at ISM band and is embedded in 2X2 array as a ground. Unique properties of mushroom type metamaterial substrate like as high impedance surface (HIS) helped in design of low aperture antenna, Artificial magnetic conductor (AMC) helps in enhancing the radiation characteristics and Forbidden band gap (FBG) helps in suppressing transverse electric (TE) and transverse magnetic (TM) wave propagation hence point of mutual coupling and side lobe levels are reduced. So, 2X2 array antenna with corporate feed resonating at 2.5GHz is embedded by array of mushroom type metamaterial unit cells is designed in HFSS and obtained results are compared with 2X2 array resonating at 2.5GHz on conventional conducting ground results. An enhancement in impedance band width of 2.47%, gain of 2.91dB and with lowered side lobe reduction of 3.74dB.

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