Since the Federal Communication Commission (FCC) issued a license for 3.1 – 10.6 GHz frequency spectrum unlicensed radio applications, many papers have been published regarding ultrawideband (UWB) antenna design. The issue of UWB design is determining how to create an with wide bandwidth, capable rejecting communication systems that coexist bands, and designing antennas multiple input output (M...

A triple band-notched ultra-wideband (UWB) monopole antenna using a planar electromagnetic bandgap (EBG) design is proposed. The EBG unit cell composed by an Archimedean spiral and inter-digital capacitance demonstrates the notch frequencies. with cells near feed line occupies only 30 × 36 mm2 band-rejection characteristics. three notched bands at 4.2 GHz, 5.2 9.1 GHz can be used in C-band sate...

Dual band metamaterial perfect absorbers with two absorption bands are highly desirable because of their potential application areas such as detectors, transceiver system, and spectroscopic imagers. However, most of these dual band metamaterial absorbers proposed were based on resonances of metal patterns. Here, we numerically and experimentally demonstrate a dual band metamaterial perfect abso...