Modern radio communication utilizes different frequency bands. Common antennas provide acceptable performance only in narrow frequency bands, requiring the user to change antennas when changing the frequency band. For broadband monitoring purposes, an array of different antennas is thus required. The BCM40 antenna eliminates the need for different antennas in a frequency band from 1.2 to 40 GHz, offering solid performance in a frequency band of unprecedented width. The omnidirectional characteristic of the BCM40 allows the controlling of rooms and outdoor areas in a broadband spectrum. The antenna can be placed on a table (Fig. 2) as well as at a mast.