Design of an 8-element planar composite right/left-handed leaky wave antenna array for 2-D beam steering

2006 ◽  
Author(s):  
Tokio Kaneda ◽  
Atsushi Sanada ◽  
Hiroshi Kubo
Keyword(s):  
Antenna Array ◽  
Beam Steering ◽  
Leaky Wave ◽  
Left Handed ◽  
Leaky Wave Antenna ◽  
Wave Antenna

scholarly journals Leaky wave antenna with amplitude controlled beam steering based on composite right/left-handed transmission lines

2010 ◽  
Vol 8 ◽  
pp. 27-32 ◽  
Author(s):  
M. A. Eberspächer ◽  
T. F. Eibert
Keyword(s):  
Transmission Lines ◽  
Beam Steering ◽  
Main Beam ◽  
Beam Direction ◽  
Leaky Wave ◽  
Microstrip Technology ◽  
Left Handed ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Unit Cells

Abstract. An antenna comprising two different composite right/left-handed transmission line structures is proposed which enables easy beam steering at an operation frequency of 10 GHz. The composite right/left-handed transmission lines are based on planar, periodically arranged via free unit cells, implemented in microstrip technology. Both transmission lines exhibit the infinite wavelength phenomenon which occurs at 9.72 GHz and 9.89 GHz, respectively. Thus, operating the different leaky wave structures at 10 GHz, radiation with azimuth angles of ±8° and ±17° can be achieved depending on the selected input port. In order to obtain a tunable main beam direction, the radiation patterns of both structures are superimposed by feeding them simultaneously. The influence of each guiding structure, and hence the direction of the main beam, can be controlled via the feeding amplitude. As a result of this, the beam can be steered between ±17° with a gain of up to 10 dBi. The guiding structures are arranged in parallel with a clearance of a=12.2 mm which is less than half of the wavelength in free space. This allows in a further step the attachment of additional guiding structures in order to increase the tunable angle range or creating an antenna array with a small beamwidth in the elevation plane without the occurrence of grating lobes. An antenna prototype was fabricated and validated by measurements.

An investigation of the dynamic beam-steering capability of a liquid-crystal-enabled leaky-wave antenna designed for 5G applications

2021 ◽  
Vol 119 (3) ◽  
pp. 034104
Author(s):  
Rodrigue Tchema ◽  
Nectarios C. Papanicolaou ◽  
Anastasis C. Polycarpou
Keyword(s):  
Liquid Crystal ◽  
Beam Steering ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna

Design for radiation broadside direction using half-width microstrip leaky-wave antenna array

2019 ◽  
Vol 110 ◽  
pp. 152839 ◽  
Author(s):  
Mowafak Khadom Mohsen ◽  
Mohd Sa'ari Bin Mohamad Isa ◽  
Azmi Bin Awang Md Isa ◽  
Muhannad Kaml Abdulhameed ◽  
Mothana Lafta Attiah ◽  
...  
Keyword(s):  
Antenna Array ◽  
Half Width ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna
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