A Compact UWB antenna with Dual-Reject Band

A compact ultra-wideband antenna with two band-reject characteristics is proposed. Dual rejected frequency bands are attained by etching a psi-shaped slot in the square radiating patch and embedding a pair of E-shaped resonators around the feeding line. The substrate material used is RO4003C with relative permittivity of 3.55 and thickness of 0.813 mm. The designed antenna operates within the 3.4-10.6 GHz frequency range with one reject frequency band at 4.4–5.2 GHz (INSAT-band) and a second reject frequency band at 8.2–9.2 GHz (ITU-8 band). The proposed antenna is compact in size occupying an area of 29 x 22 mm
²
and is suitable for ultra-wideband systems.