wideband antenna การใช้

• A wideband antenna is one with approximately or exactly the same operating characteristics over a very wide passband.
• The typical airborne RWR system consists of multiple wideband antennas placed around the aircraft which receive the radar signals.
• Fractional bandwidth is used for wideband antennas because of the compression of the percent bandwidth that occurs mathematically with percent bandwidths above 100 %, which corresponds to a fractional bandwidth of 3 : 1.
• "Fractional bandwidth or Ratio bandwidth ", usually used for wideband antennas, is defined as B = f _ H / f _ L, and is typically presented in the form of B : 1.
• "' Ultra Wide Band High Powered Electro Magnetics "': An UWB-HPEM system typically consists of the following components : a battery-based direct current power supply, an actuation system, a semiconductor-based ultra-wideband pulse generator and an ultra-wideband antenna.