SYNTHESIS OF OPTIMAL NARROW BEAM LOW SIDELOBE LINEAR ARRAY WITH CONSTRAINED LENGTH

In this paper, a thinned linear array with Cavity backed U-slot Patch has been investigated using the Genetic Algorithm to minimize peak sidelobe level and the number of antenna elements. One of the essential steps in the Genetic Algorithm method is a crossover, which uses the Paired Top Ten and Combined Top Five rules applied to the Cavity backed U-slot Patch antenna. The peak sidelobe level value is -18.63 dB with a array filling of 63.33% at the broadside angle using Combined Top Five rules. In Paired Top Ten, the peak sidelobe level value is -19.48 dB with a array filling of 70%. The two methods are still better as compared to a dense array. This study is essential in the development of radar technologies since it needs a low sidelobe level.

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A Novel Chebyshev Series Fed Linear Array with High Gain and Low Sidelobe Level for WLAN Outdoor Systems

REV Journal on Electronics and Communications ◽

10.21553/rev-jec.187 ◽

2018 ◽

Vol 8 (1-2) ◽

Author(s):

The Toan Tang ◽

Minh Tran Nguyen ◽

Vu Bang Giang Truong

Keyword(s):

Linear Array ◽

Measurement Data ◽

High Gain ◽

Single Element ◽

Sidelobe Level ◽

Antenna Theory ◽

Yagi Antenna ◽

Low Sidelobe ◽

Structure Simulation ◽

Microstrip Array Antenna

This paper proposes a novel high gain and low sidelobe level (SLL) linear microstrip array antenna for outdoor WLAN applications. The antenna consists of two main parts, which are a linear array and a reflector. The linear array comprises of 10 elements; those have been designed on Rogers RT/Duroid 5870tm with the dimensions of 422×100×10.15 mm3. To gain low SLLs, a series fed network was designed to have the output signals being proportional to the Chebyshev distributions (with preset SLL of -30 dB). Furthermore, Yagi antenna theory has been applied by adding directors above every single element to increase the directivity of the single element. The reflector has been constructed at the back of the proposed structure. Simulation results show that the array can provide high gain of 17.5 dBi and a low SLL of -26 dB. A prototype has been fabricated and measured. Good agreements between simulation and measurement data have been obtained.

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A HS-CVX Algorithm for Sparse linear array with low sidelobe pattern

10.23919/aces-china52398.2021.9581755 ◽

2021 ◽

Author(s):

Xikuan Dong ◽

Hailin Li ◽

Jiawen Hu ◽

Yuanjin Tian

Keyword(s):

Linear Array ◽

Low Sidelobe ◽

Sparse Linear Array

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