The reasons why cheap headphones sound worse

Buying headphones can be an investment, and cheap models can struggle with clarity, detail, and balance. Here's why your ...
Morning Overview on MSN

SETI’s strangest clue: signals so perfect they didn’t look natural

Some of the most tantalizing hints in the search for extraterrestrial intelligence have not been messy or chaotic, but eerily ...
IEEE

Frequency and Power Dependence of Passive Intermodulation in Connectors With Contact-Material Nonlinear Modeling

Abstract: Passive intermodulation (PIM) is generally regarded as an unavoidable interference in radio frequency (RF) circuit and system, which exhibits dynamic characteristics with the change of ...
IEEE

A Reflectionless Receiver With Absorptive IF Amplifier and Dual-Path Noise-Canceling LNA

Abstract: This article presents a 22.6–39.2-GHz reflectionless receiver (RX) capable of reducing the in-band intermodulation and high-order mixing products. Such RX consists of an absorptive IF ...