scholarly journals Design & development of high gain antenna arrays for CDMA 450

2011 ◽  
Author(s):  
Azhari Asrokin ◽  
Anas Abas ◽  
Rizal Helmy Basri ◽  
Norman Jamlus
Keyword(s):  
Antenna Arrays ◽  
High Gain ◽  
High Gain Antenna

Wideband and high gain antenna arrays for UAV-to-UAV and UAV-to-ground communication in flying ad-hoc networks (FANETs)

2018 ◽  
Vol 60 (5) ◽  
pp. 1164-1170 ◽  
Author(s):  
Muhammad Mustaqim ◽  
Bilal A. Khawaja ◽  
Asghar A. Razzaqi ◽  
Syed Sajjad H. Zaidi ◽  
Syed A. Jawed ◽  
...  
Keyword(s):  
Ad Hoc Networks ◽  
Antenna Arrays ◽  
Ad Hoc ◽  
High Gain ◽  
High Gain Antenna ◽  
Hoc Networks

scholarly journals High-gain cavity backed patch antenna arrays at 140 GHz based on LTCC technology

2019 ◽  
Vol 11 (08) ◽  
pp. 829-834 ◽  
Author(s):  
Zihang Qi ◽  
Xiuping Li ◽  
Jinjin Chu ◽  
Jun Xiao ◽  
Hua Zhu
Keyword(s):  
Antenna Arrays ◽  
Patch Antenna ◽  
Impedance Matching ◽  
High Gain ◽  
Ceramic Technology ◽  
Antenna Element ◽  
Maximum Gain ◽  
Gain Enhancement ◽  
High Gain Antenna ◽  
Element Array

AbstractIn this paper, high-gain cavity backed patch antenna arrays are proposed based on low temperature co-fired ceramic technology at 140 GHz. By introducing a substrate integrated cavity to the patch antenna element, the gain is enhanced by 3.3 dB. Moreover, a rectangular ring is loaded around the patch for better impedance matching and further gain enhancement. The final simulated maximum gain of the proposed antenna element is 9.8 dBi. Based on the proposed high-gain antenna element, a 4 × 4-element array and an 8 × 8- element array are presented. The 4 × 4-element array shows a measured maximum gain of 16.9 dBi with 9.5 GHz bandwidth (136.2–145.7 GHz) and the 8 × 8-element array shows a measured maximum gain of 21.8 dBi with 9.8 GHz bandwidth(136.7–146.5 GHz), respectively.

scholarly journals High-Gain Planar Array of Reactively Loaded Antennas for Limited Scan Range Applications

Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1376
Author(s):  
Ronis Maximidis ◽  
Diego Caratelli ◽  
Giovanni Toso ◽  
A. Bart Smolders
Keyword(s):  
Radiation Pattern ◽  
Antenna Arrays ◽  
Short Circuit ◽  
Central Element ◽  
Vertical Axis ◽  
High Gain ◽  
Antenna Element ◽  
Horizontal Distance ◽  
Array Configuration ◽  
High Gain Antenna

This paper proposes a novel high-gain antenna element that can be used in antenna arrays that only require a limited scan range. Each high-gain antenna element uses a linear sub-array of highly-coupled open-ended waveguides. The active central element of this sub-array is directly fed, while the remaining passive waveguides are reactively loaded. The loads are implemented by short-circuits positioned at various distances from the radiating aperture. The short-circuit positions control the radiation pattern properties and the scattering parameters of the array. The proposed sub-array antenna element is optimized in the presence of the adjacent elements and provides a high gain and a flat-top main lobe. The horizontal distance between the sub-array centers is large in terms of wavelengths, which leads to limited scanning capabilities in the E-plane. However, along the vertical axis, the element spacing is around 0.6 wavelength at the central frequency that is beneficial to achieve a wider scan range in the H-plane. We show that the sub-array radiation pattern sufficiently filters the grating lobes which appear in the array factor along the E-plane. To demonstrate the performance of the proposed array configuration, an array operating at 28.0 GHz is designed. The designed array supports scan angles up to ±7.5° along the E-plane and ±24.2° along the H-plane

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