Abstract: We propose a two-dimensional (2D) resonant-tunneling-diode (RTD) oscillator array to generate quasi-plane terahertz (THz) waves. Dual-RTD slot antennas are employed to form the 2D array ...
Abstract: This paper demonstrates a low-profile, dual-linearly polarized programmable array antenna with two-dimensional (2-D) wide-angle beam-scanning capability. A polarization reconfigurable ...
Two cannonballs were found surprisingly close together but one was wrapped in a thick “cocoon” from sitting in water. A careful hammer tap reveals a hollow tone, then the crust begins to break away.
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