Design and validation of corporate feeds for low-sidelobe microstrip linear arrays

Ogurtsov, Stanislav1; Koziel, Slawomir1; Yu, Yang2; Cheng, Qingsha S.2

10.1049/cp.2018.1038

2018

978-1-78561-815-4

12th European Conference on Antennas and Propagation, EuCAP 2018

2018

CP741

1-5

9-13 April 2018

London, United kingdom

Institution of Engineering and Technology

Simulations and measurements resulting from a comparative study that aims at a systematic computer-aided design of printed circuit feeds for low-sidelobe microstrip antenna arrays are presented. In this work, we consider microstrip corporate feeds (CFs) realizing nonuniform amplitude excitation of linear arrays of microstrip patch antennas. Two types of the microstrip CFs are considered: with equal power split junctions, and with unequal power split junctions. For each CF type, we identify candidate prototypes of CF architectures using numerical optimization of the corresponding fast CF models. Subsequently, the CF architectures are implemented as microstrip CFs within the antenna array electromagnetic (EM) model. For the sake of comparison, the antenna feed circuits are defined with the same linear array antenna aperture featuring the half-wavelength element spacing, and implemented on the same microstrip substrates. Finally, the EM models are tuned- using simulation-based optimization techniques-to ensure an appropriate input reflection coefficient and minimum sidelobe levels. Selected optimal designs of antenna array circuits with twelve microstrip patches and different feeds are manufactured and measured.
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microstrip antenna array linear antenna array corporate feed sidelobe level computer-aided design optimization radiation pattern measurement

其他

EI

Icelandic Centre for Research[1502034051]

20184806166387

Antenna arrays ; Antenna feeders ; Antenna lobes ; Computer aided design ; Optimization ; Printed circuit design ; Slot antennas

Computer Applications:723.5 ; Optimization Techniques:921.5

EV Compendex

1.Engineering Optimization and Modeling Center, Reykjavik University, Reykjavik; 101, Iceland
2.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China

Ogurtsov, Stanislav,Koziel, Slawomir,Yu, Yang,et al. Design and validation of corporate feeds for low-sidelobe microstrip linear arrays[C]:Institution of Engineering and Technology,2018:1-5.