Design and Development of Multiband Hybrid Microstrip Patch Antenna for Advanced Wireless Communication Systems

Abstract— This research article present a novel flower-shaped multiband microstrip patch antenna is presented for modern wireless communication systems, including GSM, WiMAX, ISM, and WLAN applications. The antenna is implemented on an FR-4 substrate (tan δ = 0.02, εr = 4.3) with a thickness of 1.6 mm. To achieve improved impedance matching, the design incorporates two symmetrical rectangular slots and one elliptical slot. The antenna is excited using a 50 Ω microstrip feed line and operates efficiently across four distinct frequency bands—band 1 (0.651–1.696 GHz), band 2 (2.76–2.98 GHz), band 3 (3.53–3.97 GHz), and band 4 (4.55–5.92 GHz)—for |S11| ≤ −10 dB. Additionally, the paper presents a comprehensive analysis of the simulated surface current distribution and far-field radiation characteristics. Keywords- wireless communication, Microstrip Patch, multiband antenna etc.