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High‐directive monopulse microstrip antenna array for DSRC‐band application
Author(s) -
Patanvariya Deven G.,
Chatterjee Anirban
Publication year - 2021
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.4811
Subject(s) - monopulse radar , antenna array , radiation pattern , microstrip antenna , optics , turnstile antenna , computer science , collinear antenna array , antenna (radio) , microstrip , physics , telecommunications , coaxial antenna , radar , radar imaging , continuous wave radar
Summary In this paper, the authors presented a new technique to generate difference ( Δ )‐pattern in microstrip patch antenna array for monopulse applications. In array, the truncated corner single elements are left‐handed and right‐handed circularly polarized. The Δ ‐pattern is generated by placing the left‐ and right‐polarized single elements in same direction along y ‐axis. The circuit model analysis of a single element and array is presented to analyze the antenna's performance. In order to achieve a lower sidelobe level and stable radiation pattern, a uniform power divider has been designed. Finally, the proposed left‐ and right‐polarized element and array are fabricated and measured. The proposed circularly polarized (CP) elements and array resonates at 5.90 GHz. The array provides null depth of more than − 42 dB at θ = 0 ∘direction in different ϕ cuts. The proposed array has a linear gain of 8.71 dBi and radiation efficiency of 77.25 % . Furthermore, the simulated and measured results are well matched, which shows the effectiveness of the proposed way to generate the difference pattern for monopulse application.