Work

Synthesis of maximally sparse conformal circular arc array with a required beam pattern by unitary matrix pencil method

Year: 2024

Type: article

Abstract: This paper extends the unitary matrix pencil (UMP) method to synthesize maximally sparse conformal circular-arc array with a required beam pattern. Due to the nonlinearity between the circular-arc array pattern and its element pattern, Fourier transform preprocessing for the required beam pattern is introduced to achieve a mathematical expression, i.e., sum of a series of undamped complex exponentials , which is related to array element positions and their excitations. Then, the UMP method is used to determine the reduced number of elements and their position distributions. Moreover, the complex excitations of array elements are reconstructed by obtaining the least-square solution of an over-determined equation. A set of examples for synthesizing sparse conformal circular-arc arrays with different desired patterns and E-type patch element including the mutual coupling are conducted. Results show that the proposed UMP method can achieve a considerably lower pattern reconstruction error with a reduced number of elements than results in the literature, which demonstrates its effectiveness and robustness.

Source: Digital Signal Processing

DOI: 10.1016/j.dsp.2024.104771

Authors: Bin Kong, Yongjun Li, Pengfei Zhao, Pin Wen, Foxiang Liu

Institutions: Nanchang University, Ministry of Education of the People's Republic of China

Language: English

Topic: Antenna Design and Optimization

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,500

Funders: National Natural Science Foundation of China, Ministry of Education of the People's Republic of China, Ministry of Education, Natural Science Foundation of Jiangxi Province