A novel UWB antenna for a broadcasting television system

An ultra-wideband (UWB) discone antenna with an omnidirectional radiation pattern is proposed in order to be used in a broadcasting television system. It is an ultra-wideband antenna with an omnidirectional radiation pattern, using a single antenna to receive TV signals from several transmitting stations across various geographic locations. The UWB antenna proposed in this study covers a frequency range of 0.32-1.65 GHz with a gain of 1.7 dB. It operates in both conditions: indoor and outdoor310616

Compact rectenna based on a fractal geometry with a high conversion energy efficiency per area

This work presents the design of a rectenna topology by using a compact microstrip patch antenna based on a fractal model and with the rectifier circuit integrated into the same physical structure. This configuration presents a very reduced circuit area, which makes the proposed rectenna circuit suitable for harvesting and wireless power transfer applications where the size is critical. The proposed compact rectenna, implemented on a low-cost FR-4 substrate, can harvest RF power from 2.45 GHz (ISM band) with a efficiency of ~62% when the input power harvested by the rectenna is +2 dBm. The suggested rectenna has been manufactured and experimentally characterised, showing a good agreement with the expected simulated results