Signal modulation is one of the most basic and important concepts in the RF industry. It consists of using the variation of one or more parameters of a carrier signal to transmit information, ...

Wireless devices have become critical tools in everyday life. They allow us to transfer voice, data, images and video with ease. The evolving quest for increasing quantities of data to be transferred ...

In the last years, a major transition from analog to digital modulation techniques has occurred and it can be seen in all areas of wireless communication, satellite and cellular systems. This paper ...

Linear Technology has launched the LTC5585, an ultrawide bandwidth direct conversion I/Q demodulator with linearity performance of IIP3 = 25.7dBm and IIP2 = 60dBm at 1.95GHz. According to Linear, the ...

Testing transceiver and converter interfaces requires orthogonal in-phase and quadrature (IQ) analog signals; that is, the phase relationship of the two must be very close to a 90-degree phase offset, ...

Imagine for a moment that it's January 2008 and that DVB (The Digital Video Broadcasting Project) is currently drafting a specification called DVB-T2 for the next generation of digital terrestrial ...