Abstract
In this paper, a gap-coupled design of a microstrip-line resonator-fed rectangular microstrip antenna along with a variant of semi-circular patches is proposed. A gap-coupled rectangular microstrip antenna with semi-circular patches is indirectly fed by a pair of λ/4 microstrip-line resonators. Enhancement in bandwidth is achieved by coupling resonance introduced by a pair of λ/4 microstrip-line resonators and gap-coupled parasitic patches. Design of microstrip-line resonator-fed rectangular microstrip antenna provides a bandwidth of 53 MHz (6.41%) with broadside gain of 5.8 dBi. The optimum response obtained in rectangular microstrip antenna gap-coupled configuration with four semi-circular shape patches in terms of impedance bandwidth and a peak gain is 86 MHz (10.41%) and 7.7 dBi. The proposed design is implemented using 0.019λc total substrate thickness and the experimental results obtained with the fabricated prototype antenna show a close match with the simulated results.
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Deshmukh, S.B., Deshmukh, A.A. (2022). Microstrip-Line Resonator-Fed Rectangular Microstrip Antenna Using Gap-Coupled Parasitic Semi-circular Shape Patches. In: Vasudevan, H., Gajic, Z., Deshmukh, A.A. (eds) Proceedings of International Conference on Wireless Communication. Lecture Notes on Data Engineering and Communications Technologies, vol 92. Springer, Singapore. https://doi.org/10.1007/978-981-16-6601-8_10
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DOI: https://doi.org/10.1007/978-981-16-6601-8_10
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