![Amazon.com: GRA-D3000 75MHz-3GHz Super Broadband Discone Scanner Base Antenna with 32.8ft RG-58A/U Cable : Electronics Amazon.com: GRA-D3000 75MHz-3GHz Super Broadband Discone Scanner Base Antenna with 32.8ft RG-58A/U Cable : Electronics](https://m.media-amazon.com/images/I/415tppkx4WL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: GRA-D3000 75MHz-3GHz Super Broadband Discone Scanner Base Antenna with 32.8ft RG-58A/U Cable : Electronics
![An ultrawideband inverted double discone antenna with 150:1 impedance bandwidth - Shahid - 2016 - Microwave and Optical Technology Letters - Wiley Online Library An ultrawideband inverted double discone antenna with 150:1 impedance bandwidth - Shahid - 2016 - Microwave and Optical Technology Letters - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/6778af79-a96e-4499-8bc9-b1395d2e837a/mop29530-fig-0001-m.png)
An ultrawideband inverted double discone antenna with 150:1 impedance bandwidth - Shahid - 2016 - Microwave and Optical Technology Letters - Wiley Online Library
![Table I from An ultrawide-band double discone antenna with the tapered cylindrical wires | Semantic Scholar Table I from An ultrawide-band double discone antenna with the tapered cylindrical wires | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/3f67b224b8351540c0e55c2ae0008e28b14ddc31/2-TableI-1.png)
Table I from An ultrawide-band double discone antenna with the tapered cylindrical wires | Semantic Scholar
![Figure 1 from Optimization of a Broadband Discone Antenna Design and Platform Installed Radiation Patterns Using a GPU-Accelerated Savant / WIPL-D Hybrid Approach | Semantic Scholar Figure 1 from Optimization of a Broadband Discone Antenna Design and Platform Installed Radiation Patterns Using a GPU-Accelerated Savant / WIPL-D Hybrid Approach | Semantic Scholar](https://ai2-s2-public.s3.amazonaws.com/figures/2017-08-08/e9829a9ed8e0b375b293b4faafa1c864f0bfc2fa/3-Figure1-1.png)