Novel Ultra wide band Compact planner antennas with In built Notch band characteristics and for MIMO applications

Abstract

In 2002, the Federal Communication Commission (FCC) defined ultra wideband (UWB) technology to be a technology having absolute bandwidth of 500 MHz or fractional bandwidth of 20 percent. In addition, FCC allocated at 3.1-10.6 GHz frequency band for unlicensed indoor or short-range uses for UWB communication, with a maximum allowed power spectral density of -41.3dBm/MHz. newlineDue to the use of picoseconds wide narrow pulses, carrier free operation, and wider bandwidth, UWB technology comes with inherent advantages like moderate robustness to fading effects, simple and low-cost implementation, ability to share frequency spectrum, large channel capacity, ability to work with low signal to noise ratio etc. newline newline