%0 Electronic Article %A Xianxun Yao %A Guolin Sun %K radiation patterns %K wideband horn antenna %K PCB layer %K multisubstrate PCB technology %K continuous structure %K electric field %K metal horn antenna %K frequency 20.5 GHz to 28.6 GHz %K multisubstrate layer technology %K ridge waveguide %K active elements %K RF circuit %K microstrip line %K coplanner waveguide with ground %K CPWG %K broad impedance bandwidth %X A metal horn antenna fed by a co-planner waveguide with ground (CPWG) is designed and fabricated. To integrate and connect other active elements of the system, the CPWG is designed by multi-substrate PCB technology. A transition in the PCB layer concatenating the CPWG and the microstrip line has provided a continuous structure to lead the electric field from RF circuit into the horn. A ridge waveguide is used to widen the bandwidth. The simulated and measured results show that the proposed antenna has a broad impedance bandwidth of 33.1% (from 20.5 to 28.6 GHz) for |S 11|<–10 dB and the radiation patterns also satisfy the requirements over the bandwidth. %@ 0013-5194 %T Wideband horn antenna based on multi-substrate layer technology %B Electronics Letters %D January 2019 %V 55 %N 1 %P 5-6 %I Institution of Engineering and Technology %U https://digital-library.theiet.org/;jsessionid=1rwu80rmpq6nn.x-iet-live-01content/journals/10.1049/el.2018.6399 %G EN