Inhomogeneous lens antenna design with fan-beam radiation pattern

Taskhiri, Mohammad Mahdi; Khalaj‐Amirhosseini, Mohammad

doi:10.3788/col201614.121601

Cited by 9 publications

(1 citation statement)

References 26 publications

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“…In general, homogeneous [1][2][3][4][5] and inhomogeneous index profiles [6][7][8][9] are two types of dielectric lens antennas that are used for different applications, such as radar [10] and 5G antennas [11].…”

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

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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.

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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

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Design a dual circular polarized array antenna with fan‐beam radiation pattern

Jamali

Taskhiri

2022

Int J RF Mic Comp-Aid Eng

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In this article, a dual circular polarized antenna fed by double quadrature couplers is presented. The proposed structure consists of three parts: dual‐polarization antenna, quadrature couplers, and connection structure. This structure is not sensitive to orientation due to its circular polarization. The antenna gain can be easily increased by cascading orthogonal dipoles. Therefore, this array structure has a fan beam circular polarized radiation pattern. This structure is fabricated on the Rogers 4003C substrate. The simulation and measurement results show that this proposed antenna achieves return loss above 10 dB in the frequency range of 9.8–10.2 GHz.

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

Esmaeili

Taskhiri

2022

Int J RF Mic Comp-Aid Eng

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In this article, a multi-resonance frequency scanning antenna with a Luneburg lens is designed. This antenna operates in the X-band and can achieve beam steering by changing the frequency in this band. The steering angle of the designed model is ±50 . This antenna is a good candidate for a wide range of telecommunication, automotive radar, and search radar applications. The advantage of this model over most of other works in this field is that just one multi resonant slot antenna in front of the Luneburg lens is used instead of several antennas and separate feed networks. This development leads to a compact structure with more straightforward and cost-effective fabrication. The antenna structure is based on a substrate integrated waveguide technology. Full-wave simulations are performed using the software of CST. The proposed model is designed and fabricated on Rogers RO4003C substrate with a height of 20 mils. A perforated Teflon sheet is designed and fabricated to approximate the inhomogeneous refractive index of the Luneburg lens.

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Inhomogeneous lens antenna design with fan-beam radiation pattern

Cited by 9 publications

References 26 publications

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

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

Design a dual circular polarized array antenna with fan‐beam radiation pattern

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

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