Multi resonant slot antenna design to radiate fan‐shaped multi‐beam radiation pattern with the use of two‐dimensional perforated Luneburg lens

Esmaeili, Pouyan; Taskhiri, Mohammad Mahdi

doi:10.1002/mmce.23469

Cited by 5 publications

(3 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lens can be used to create multiple radiation beams [10]. The Rotman lens is a type of beam‐forming network in that multiple antenna beams can be formed without the need for switches or phase shifters [11].…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of multi‐layer SIW coupler to use in phased array antenna feed network

Abedi

Taskhiri

Hadian

2023

The Journal of Engineering

Self Cite

View full text Add to dashboard Cite

In this paper, a directional coupler is designed using the substrate integrated waveguide (SIW) method. The SIW coupler consists of a double‐layer with transverse rectangular slots in the middle of two layers. The proposed coupler contains three ports. The placement of ports is considered based on the generalization of the power divider network. Each layer is printed on 0.508 mm Rogers RT/Duroid 5880 (εr=2.2$\epsilon _r=2.2$ and tanδ=0.0009$tan \delta =0.0009$). The coupling level is basically controlled by the number and size of the slots. This coupling ratio changes from −5 dB to −13 dB. It is complicated to design a single‐layer feed network for a two‐dimensional phased array antenna. The designed SIW coupler can be easily generalized to the feed network for a 2D phased array antenna that consists of a large number of antenna and phase shifter elements. The SIW coupler is simulated using CST software. The results of the analyses, simulations and experiments indicate good performances of the designed coupler.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and analysis of multi‐layer SIW coupler to use in phased array antenna feed network

Abedi

Taskhiri

Hadian

2023

The Journal of Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently, some fabrication methods have led to special attention to the design and use of inhomogeneous lens structures. Some of these methods are perforated dielectrics [22,[35][36][37][38], printed metasurface [39][40][41][42][43][44], 3D printed structure [45][46][47], multi printed layer [48], dielectric layered shell deposition [49], and other methods.…”

Section: Introductionmentioning

confidence: 99%

The low‐cost inhomogeneous multi‐section flat lens antenna with minimum F over D design in Ku‐band

Taskhiri

2023

IET Microwaves Antenna & Prop

Self Cite

View full text Add to dashboard Cite

This article uses the ray inserting method to design a low‐cost inhomogeneous lens in the Ku‐band. The focal length to the diametre ratio of the designed lens is 0.45, which is lower than most designed lenses in this area. Also, no approximation is considered to yield the refractive index profile. The refractive index changes from the centre to the sides have been made in two sections to limit the maximum calculated refractive index of the structure to the Plexiglass refractive index. The designed lens proposed a good match to the source and surroundings. The theoretical design is validated by the finite difference time domain scheme and full‐wave simulation. The lens structure is realised and fabricated on a multilayer Plexiglass sheet. The results of simulations and experiments indicate good performances of the designed lens in the wide frequency bandwidth.

show abstract

“…The effective-medium theory can be used by embedding air holes in cubic or fan-shaped dielectric unit cells to realize inhomogeneous permittivity distribution. 3-D Printed techniques (additive manufacturing) 34 , 45 , 46 , printed metasurfaces 47 , 48 , laser-cutting 49 , PCB milling, and dielectric substrate drilling 50 , 51 are methods to fabricate this medium.…”

Section: Introductionmentioning

confidence: 99%

Broadband inhomogeneous lens with conical radiation pattern

Taskhiri

Fakhte

2023

Sci Rep

Self Cite

View full text Add to dashboard Cite

This manuscript presents a lens antenna with simultaneous broadside and conical beams. The lens is designed for the Ku band using the ray inserting method. The proposed conical radiation pattern is broadband due to good matching with the source and surroundings. The simulation is conducted using the CST microwave studio solver. Instead of complex antenna shapes used in other works, a simple circular patch ring and RF connector are used as the lens feed to generate broadside and omnidirectional conical patterns, respectively. To validate the performance of the designed lens and its two-port feed antenna, the lens structure is realized and fabricated using the 3D printing method. Polyethylene terephthalate glycol (PETG) plastic material is utilized for constructing the lens in this work. The electromagnetic characteristics of PETG in the Ku band are accurately measured. The results of simulations and experiments demonstrate the good performance of the designed lens over a wide frequency bandwidth. The advantage of this designed structure over other works is its high gain and broad bandwidth.

show abstract

Multi resonant slot antenna design to radiate fan‐shaped multi‐beam radiation pattern with the use of two‐dimensional perforated Luneburg lens

Cited by 5 publications

References 60 publications

Design and analysis of multi‐layer SIW coupler to use in phased array antenna feed network

Design and analysis of multi‐layer SIW coupler to use in phased array antenna feed network

The low‐cost inhomogeneous multi‐section flat lens antenna with minimum F over D design in Ku‐band

Broadband inhomogeneous lens with conical radiation pattern

Contact Info

Product

Resources

About