Analysis of transient radiation pattern of a high‐power bipolar short‐pulsed array antenna

2017 ◽  
Vol 11 (14) ◽  
pp. 2043-2048
Author(s):  
Jae Sik Kim ◽  
Seung Hun Cha ◽  
Young Joong Yoon ◽  
Jiheon Ryu ◽  
Jin Soo Choi
Keyword(s):  
Radiation Pattern ◽  
High Power ◽  
Array Antenna ◽  
Transient Radiation

scholarly journals Radiation Pattern Reconfigurable Waveguide Slot Array Antenna Using Liquid Crystal

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Hongyu Shi ◽  
Jianxing Li ◽  
Shitao Zhu ◽  
Anxue Zhang ◽  
Zhuo Xu
Keyword(s):  
Dielectric Constant ◽  
Liquid Crystal ◽  
Electric Field ◽  
Radiation Pattern ◽  
Array Antenna ◽  
Antenna Element ◽  
Waveguide Slot ◽  
Radiation Direction ◽  
Coupled Resonator

In this paper, we proposed a radiation pattern reconfigurable waveguide slot array antenna using liquid crystal (LC). Together with the waveguide slot, the designed complementary electric-field-coupled resonator functions like a switch controlled by the dielectric constant of the LC, which can control the antenna element to radiate or not. Thus, the array factor and radiation pattern can be manipulated. The proposed antenna was simulated, fabricated, and measured. Its radiation direction can be reconfigured to 46° or 0° at about 15 GHz.

A Method for Radiation Pattern Reconstruction of Phased-Array Antenna

2020 ◽  
Vol 19 (1) ◽  
pp. 168-172 ◽  
Author(s):  
Zhanling Wang ◽  
Chen Pang ◽  
Yongzhen Li ◽  
Xuesong Wang
Keyword(s):  
Radiation Pattern ◽  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Pattern Reconstruction

A Technique of Scan Blindness Elimination for Planar Phased Array Antenna using Miniaturized EBG

2014 ◽  
Vol 69 (2) ◽  
Author(s):  
M. S. M. Isa ◽  
R. J. Langley ◽  
S. Khamas ◽  
A. A. M. Isa ◽  
M. S. I. M. Zin ◽  
...  
Keyword(s):  
Surface Wave ◽  
Band Gap ◽  
Radiation Pattern ◽  
Phased Array ◽  
Elevation Angle ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Electromagnetic Band Gap ◽  
Novel Technique ◽  
Wave Effects

In this paper, the planar phased array antenna scan blindness characteristic has been analyzed and a novel technique of eliminating the scan blindness for the phased array antenna has been introduced. The scan blindness of the center element has been used to present the entire phased array characteristic. The array scan blindness characteristics have been simulated and analyzed using CST Microwave Studio (CST MWS). The 5×3 planar phased array antenna radiation patterns against the pattern elevation angle direction has been simulated and compiled. The array’s scan blindness has been determined at the angle of approximately 47⁰. The miniaturized capacitive loaded Electromagnetic Band Gap (EBG) has been developed and introduced between the array elements to eliminate the problem. Based on the simulated results, it is shown that the use of a miniaturized EBG is effective in reducing the surface wave effects and eliminates the scan blindness in the array radiation pattern. This novel finding is very useful to improve the antenna directive efficiency for the directional radar and satellite application.

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