A Dual-Band Flexible Antenna With an Adaptable Design Technique

This paper presents a dual-band flexible antenna operating at 2.45 GHz and 5.8 GHz, utilizing dual resonant slots. A design technique is developed through extensive simulations, optimizing the slots’ separation and enhancing performance while simplifying the design process. The antenna achieves an impedance bandwidth of 23% (2.25-2.85 GHz) and 9% (5.5-6.1 GHz), with peak gains of 4.4 dBi and 5.7 dBi, respectively. The measured results align well with the simulations, confirming the antenna’s superior performance. Additionally, the antenna demonstrates improved performance and standard design technique compared to existing works in the literature. This research contributes valuable insights and establishes a foundation for further advancements in flexible dual-band polymide antenna development.