New approach for computing radiation pattern of dielectric leaky-wave antenna

1989 ◽  
Vol 25 (5) ◽  
pp. 345 ◽  
Author(s):  
M. Ghomi ◽  
H. Baudrand ◽  
C. Cavalli
Keyword(s):  
Radiation Pattern ◽  
Leaky Wave ◽  
New Approach ◽  
Leaky Wave Antenna ◽  
Wave Antenna

scholarly journals Periodic Microstrip Leaky Wave Antenna with Double-Sided Shorting Pins and Pairs of Slots

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Yahuan Chen ◽  
Kuang Wang ◽  
Yuanxin Li ◽  
Yunliang Long
Keyword(s):  
Radiation Pattern ◽  
Structural Parameters ◽  
Ground Plane ◽  
Stop Band ◽  
Leaky Wave ◽  
Rectangular Patch ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Shorting Pin ◽  
Frequency Changes

A backward to forward scanning periodic microstrip leaky wave antenna (MLWA) is presented. The proposed antenna consists of a long rectangular patch with alternating shorting pin on each side, which connects the antenna patch and the ground plane to form periodic shorting circuits. There are two pairs of slots alternately spaced on the long patch to suppress the open stop band (OSB). The OSB problem was initially reduced by optimizing the structural parameters, and the slotting on the patch further improved it. The measured radiation pattern in the y-z plane shows that the antenna can scan electronically from 142° to 39° toward the end-fire (+z direction) when the operating frequency changes from 6 GHz to 12.9 GHz. The measured gain is greater than 5 dBi over the entire operating band.

Substrate Integrated Waveguide Based Leaky Wave Antenna for High Frequency Applications and IoT

2019 ◽  
Vol 09 ◽  
Author(s):  
Manvinder Sharma ◽  
Harjinder Singh
Keyword(s):  
Radiation Pattern ◽  
High Frequency ◽  
Dielectric Substrate ◽  
Substrate Integrated Waveguide ◽  
Leaky Wave ◽  
Carbon Modeling ◽  
Directional Radiation ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
High Frequency Waves

Background & Objective: Internet of things devices managed by wireless networks so that higher data rates can be achieved. With increase in demand of usage of Internet microwave signals are capable for delivering the demand. However these high frequency waves needs a waveguide to propagate otherwise they get affected due to atmospheric attenuation and rain fade. a modified structure of rectangular waveguide is used named as Substrate Integrated Waveguide (SIW). In this paper, the work has been carried out taking SIW and Leaky Wave Antenna. The dielectric substrate was taken as carbon. Modeling of SIW Leaky wave Antenna is done by making C shaped Slots. Design steps for modeling LWA were orderly pursued also optimized with various equations followed by Finite Element Method based modeling. A range of frequency as input is taken from 7 GHz to 11 GHz to take the analysis of design modeled. Results & Conclusion: The result shows the electric field intensity and radiation pattern is directly proportional with frequency while the return loss is acceptable for applied frequency range. The proposed antenna can radiate in omni directional radiation pattern hence can be used to connect devices with IoT.

Novel and active technique for controlling the radiation pattern of the half-width microstrip leaky wave antenna array

2019 ◽  
Vol 110 ◽  
pp. 152823 ◽  
Author(s):  
Mowafak Khadom Mohsen ◽  
Mohd saari Bin Mohamad Isa ◽  
Azmi Bin Awang Md Isa ◽  
Muhannad Kaml Abdulhameed ◽  
Mothana Lafta Attiah ◽  
...  
Keyword(s):  
Antenna Array ◽  
Radiation Pattern ◽  
Half Width ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Active Technique

scholarly journals A New Kind of Circular Polarization Leaky-Wave Antenna Based on Substrate Integrated Waveguide

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Chong Zhang ◽  
Junhong Wang ◽  
Meie Chen ◽  
Zhan Zhang ◽  
Zheng Li
Keyword(s):  
Circular Polarization ◽  
Radiation Pattern ◽  
Structural Parameters ◽  
Axial Ratio ◽  
Polarization Property ◽  
Substrate Integrated Waveguide ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna

A new kind of circular polarization leaky-wave antenna with N-shaped slots cut in the upper side of substrate integrated waveguide (SIW) is investigated and presented. The radiation pattern and polarization axial ratio of the leaky-wave antenna are studied. The results show that the width of N-shaped slots has significant effect on the circular polarization property of the antenna. By properly choosing structural parameters, the SIW based leaky-wave antenna can realize circular polarization with excellent axial ratio in 8 GHz satellite band.

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