Abstract: The design and analysis of a Directional antenna which oscillates at 433 MHz is given in the proposed paper, the antenna has been optimized to operate efficiently with a 16.6 dB reflection ...

Abstract: A Yagi-Uda array is proposed for dual channel mm-Wave wireless sensing and communications. The array is composed of four Yagi-Uda antenna elements, each with a driven dipole and a ground ...

张老师的名声在上海本地的ham圈可以说是如雷贯耳，以阴阳怪气，难为新人出名。 张老师令人咋舌的金句频出。 张老师好于挤兑他人来获得心灵上的满足。 在本次事件中的言论，称所有的ham都是事业无成、孩子不理、老婆无话、闲的无事，才玩无线电的；且 ...

A team from the Faculty of Physics and the Center for Quantum Optical Technologies at the University of Warsaw has developed a new type of all-optical radio receiver based on the fundamental ...

A team of physicists at the University of Warsaw has built the world’s first all-optical radio receiver powered entirely by laser light. The device, developed by researchers from the Faculty of ...