Ultrawideband coplanar waveguide-fed tapered slot line antenna
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This paper reports the development of an ultra-wide slotline antenna. The antenna is fed using a broad-band coplanar waveguide-to-slotline transition. A return loss of better than 10 dB over a very wide bandwidth of 0.5 to 6 GHz has been measured. Typical measured gain is 8 dBi at 5 GHz. As the antenna can easily be scaled for operations at millimeter and submillimeter wavelengths, its achieved extremely wide bandwidth demonstrates the potential for ultra-wide-band applications in these regimes.