scholarly journals Low-profile helical array antenna fed from a radial waveguide

1992 ◽  
Vol 40 (3) ◽  
pp. 279-284 ◽  
Author(s):  
H. Nakano ◽  
H. Takeda ◽  
Y. Kitamura ◽  
H. Mimaki ◽  
J. Yamauchi
Keyword(s):  
Array Antenna ◽  
Low Profile ◽  
Radial Waveguide

The Design of An All-Metal Low Profile End-Fire Array Antenna with High Gain

2021 ◽  
Author(s):  
Min Wang ◽  
Jin Zhang ◽  
Peng Ye ◽  
Zhengchuan Chen
Keyword(s):  
High Gain ◽  
Array Antenna ◽  
Low Profile

A meta‐surface loaded, low profile 28  GHz phased array antenna

2021 ◽  
Author(s):  
Sajjad Hussain ◽  
Shi‐Wei Qu ◽  
Dinuo Bu ◽  
Xiao‐Hua Wang ◽  
Abu Bakar Sharif
Keyword(s):  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Low Profile

scholarly journals A Compact, Low-Profile Log-Periodic Meandered Dipole Array Antenna with an Artificial Magnetic Conductor

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Oh Heon Kwon ◽  
Sungwoo Lee ◽  
Jong Min Lee ◽  
Keum Cheol Hwang
Keyword(s):  
Ground Plane ◽  
Array Antenna ◽  
Main Beam ◽  
Beam Direction ◽  
Magnetic Conductor ◽  
Artificial Magnetic Conductor ◽  
Line Configuration ◽  
Low Profile ◽  
Unit Cells ◽  
Meander Line

A compact and low-profile log-periodic meandered dipole array (LPMDA) antenna with an artificial magnetic conductor (AMC) is proposed. For compactness, a meander line configuration is implemented with dipole elements and optimized using a genetic algorithm (GA) to realize the LPMDA antenna. As a result, a size reduction of approximately 30% is achieved as compared to a conventional log-periodic dipole array antenna. To enhance the gain characteristics, the AMC ground plane configuration is realized with 9 × 9 unit cells for the LPMDA antenna. Two prototypes of the proposed LPMDA antennas with and without an AMC are fabricated and measured to verify its performance. The measured −10 dB reflection ratio bandwidths are 2.56 : 1 (0.85–2.18 GHz) and 2.34 : 1 (0.92–2.16 GHz) for the proposed LPMDA antennas with and without the AMC, respectively. The gain at the main beam direction within the operating frequency bandwidth is significantly improved from 3.94–7.17 dBi to 7.86–10.01 dBi by applying the AMC.

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