论文信息 - An ultrawide-band double discone antenna with the tapered cylindrical wires

An ultrawide-band double discone antenna with the tapered cylindrical wires

A novel double discone antenna is composed of the asymmetric biconical antenna and upside-down discone antenna. The asymmetric biconical antenna has all-wire structure like octopus legs for covering at lower operating frequency, and the upside-down discone antenna has conical shape playing a role as covering at higher operating frequency. An elaborate assembly of two antenna exhibits a 1:100 impedance bandwidth (180 MHz-18 GHz) with VSWR below 2.5 while maintaining an acceptable omnidirectional radiation pattern except at about 12 GHz region. The simulated performances of the proposed antenna are verified by the measured results of the fabricated antenna. There seems to be good agreement with each other. These features make such antennas highly suitable for application to UWB system.

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