An ultra wideband antenna for cyber applications

The evolution of wireless links and short range communications is spread over wide range of frequencies. The ever-expanding need to monitor the electromagnetic spectrum requires also broad band antennas for indoor use. We present here a low observable antenna from 200 MHz to 20 GHz for cyber applications. The antenna is omnidirectional with mixed (or elliptical) polarization, with gain between -6 dBi to 2 dBi.