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A novel compact ultrawideband biconical antenna with the impedance bandwidth of 200–965 MHz for VSWR less than 2.35 is proposed. Two metal disks and cylinders are loaded around a traditional biconical antenna, which can form two magnetic dipoles. The broadband impedance matching, miniaturization, and omnidirectional radiation patterns are achieved through the combination of the biconical antenna and...
A novel integration method for multifunction antennas is presented. The proposed multifunction antennas sharing a common aperture consists of a coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna and a UWB loop antenna. The CPW-fed UWB antenna covers 2.34–12.95 GHz and 18.9–25 GHz with VSWR < 2. The UWB loop antenna is integrated into the ground of the CPW-fed antenna with bandwidths ranging...
As is well known, more pulse energy is distributed in the relatively low frequency range than that in the high frequency range for a short pulse excitation. However, it's difficult to obtain a well low-frequency performance for the relatively limited spatial volume of antenna. Besides, the conventional knife-shape TEM horn antenna introduces some fluctuations in the main lobe radiation pattern over...
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