The design strategy to stabilise the phase centre (PC) of conventional horn antenna using a shaped dielectric rod is presented for aperture efficiency improvement space-fed antennas. In most practical antennas, PC location has significant variations with frequency leading error loss and reduction over bandwidth interest. To overcome this drawback, based on physical reasoning, rods appropriate e...

In this study, a horn antenna operating at 5.8GHz centre frequency, which is an ISM de-signed and manufactured. The novelty of the that it produced using 3D printer with conductive filament containing carbon nanotube particles. geometric dimensions were calculated by means design software. Then, size radiating element was optimized to set frequency 5.8GHz. It has been verified electromagnetic s...

Lower efficiencies of power amplifiers and increased path losses at higher frequencies are two reasons why utilizing millimeter-wave for future wireless communications is challenging. In this article, a high-gain multilens-horn antenna system presented. The provides highly effective isotropic radiated by using only few elements, where each element needs low transmit 26 dBm to reach users far di...

In this contribution, we model the Solar radiant heat as waves obeying Stefan-Boltzmann law. The is reflected on termination shock (TS) back towards to System. geometry of TS known from recent data Voyager 1 and 2. This might create observed excess microwave background (MB) in heated thermal telescopes (e.g., Holmdel horn antenna). can be easily experimentally falsified spirit Karl Popper by me...