Broadband Diplexed Power Amplifier

University of Colorado Boulder Background
Linear amplification of multiple signals present within a broad RF bandwidth finds many uses in radar and communications applications. Two key challenges exist when amplifying such signals: (1) achieving broadband amplification with high power-added efficiency and (2) maintaining linearity for multiple simultaneous (concurrent) signals.
Technology Overview
Researchers at The University of Colorado Boulder have developed a diplexing approach to broadband and linear power amplifier performance, especially for concurrent and/or wide signals. Diplexing an input signal into two paths causes fewer frequencies components to be present in each. Then, by designing relatively narrowband branch power amplifiers for each path, their full amplifier performance can be improved upon as compared to a standard wideband counterpart.

Further Details:
IEEE – Broadband Diplexed Power Amplifier
Benefits

High efficiency
Low current draw

Large RF and instantaneous bandwidth
Increased linearity, especially for concurrent and/or wide signals
Decreased frequency spectra output

Applications

Radar
5G / Telecom
Base Stations
Cell Phones

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