Compact arc-shaped antenna with binomial curved conductor-backed plane for multiband wireless applications

This study proposes a novel design of compact printed multiband monopole antenna with binomial curved conductor-backed plane which generates five wide resonant frequency bands for |S₁₁| ≤ -10 dB to cover 2.4/5.2/5.8 GHz wireless local area network, 2.5/3.5/5.5 GHz worldwide interoperability for microwave access and ultra-wideband applications simultaneously. The radiating elements of the monopole are composed of multiple arc-shaped strips. The radius of each arc-shaped strip varies proportionally to the arithmetic progression sequence. The proposed multiband antenna is studied with different shapes of conductor-backed plane through the variation in order N of binomial curve equation. The overall dimension of the proposed multiband antenna is 32 × 25 × 0.8 mm³. The prototypes of the proposed multiband antenna are fabricated and tested. The radiation mechanism of the proposed multiband antenna is explained using simulated current distributions. Simulated and experimental results obtained for these antennas show that they exhibit good radiation behaviour within the operational frequency bands.