A modified bow-tie slot antenna fed by a CPW-to-CPW transition loaded with inductively coupled slots for ultra wide - band applications

UWB and SWB Planar Antenna Technology

“…In such devices a main requirement for antennas is the capability to transmit a pulse with minimum distortion and thus preserve the shape of the pulse. Three printed monopole antennas with typical shapes and sizes have been evaluated in the radio channel in the context of frequency and time domain performances [39] . The antenna geometries used are shown in Fig.21, where (A) is a rectangular planar monopole of area 75 mm×40 mm with FR4 substrate of 1.52 mm thick, (B) a smaller antenna with both radiator and ground plane spline-shaped of area30 mm×40 mm on a 0.76 mm thick RO 4350 substrate, and (C) an even smaller spline antenna on 0.4 mm FR4 of area 30mm×30mm .…”

UWB planar antenna technology

“…12(b) a small bow-tie slot is added under the bow-tie slot antenna, and excited by the coupling of the coplanar waveguide. In addition, a tapered coplanar waveguide feeder is applied, so that the antenna achieves an impedance bandwidth of 123% [35].…”

A frequency reconfigurable bow‐tie slot antenna with wide bandwidth

“…A bow-tie slot antenna is a good example of a wide slot antenna, and it has wider bandwidth than the conventional slot antenna [5][6][7]. However, there are two things to consider when we achieve frequency reconfigurability by using a bow-tie antenna.…”