Abstract
In this study, a mixed split quadrilateral multiband microstrip antenna is designed and its measurement results in terms of different parameters are given. The proposed antenna is fed by a 50 Ω microstrip line. FR-4 (Lossy) is used as a substrate to design the recommended antenna which has a condensed structure of 0.23λ × 0.31λ. This antenna operates at C-, X-, Ku-, and K-band with moderate bandwidth because of its design and feedline. This patch antenna is designed to support models with resonances at 6.30, 7.10, 7.50, 8.70, 12.80, 17.0, and 21.30 GHz, respectively. Regarding the proposed split multiband quadrilateral antenna, results are obtained in terms of reflection coefficient, gain and radiation pattern which have admissible values of reflection coefficient of 3.0 dB. It has a reflection coefficient is −20.15 dBi and an efficiency of 86%. The prospective antenna has a compact size, good radiation characteristics and good time domain behaviour to mollify the obligation of the modern communication system.
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