ArticleScientific reports2025
A hybrid mode semi circular shaped frequency reconfigurable antenna for multiband communication.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This paper presents a hybrid mode semi-circular-shaped frequency reconfigurable antenna for ultra-wideband (UWB) and multiband communication. The proposed antenna is designed on a FR-4 substrate with a thickness of 1.6 mm, a relative permittivity of 4.2, and a compact size of 40 mm x 30 mm. Re-configurability is enabled by four PIN diodes, allowing the antenna to switch between UWB and various modes. The antenna operates in five different modes. In Mode 1 (all diodes OFF), the antenna operates as a UWB antenna covering 3.89 - 12.94 GHz with a peakgain of 6.93 dBi.It exhibits an axial ratio (AR) below 3 dB at 10.7 GHz, achieving a circular polarization bandwidth (AR BW) of 330 MHz from (10.53-10.86) GHz. Activating specific PIN diode combinations allows the antenna to function in different multiband configurations, supporting frequencies for 5G sub-6 GHz, WiMAX, and radar applications. This antenna's versatility, through its frequency re-configurability, makes it an ideal candidate for modern communication systems.
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