Resistance Compression Networks for Radio-Frequency Power Conversion

Radio Frequency Pulse Compression*

High gradients require high peak powers. One possible way to generate high peak powers is to generate a relatively long pulse at a relatively low power and compress it into a shorter pulse with higher peak power. It is possible to compress before DC to RF conversion as is done for the relativistic klystron or after DC to RF conversion as is done with SLED. In this note only radio frequency puls...

Low Power Digital Frequency Conversion Architectures

State-of-the-art data communication systems make extensive use of digital hardware. Besides baseband modulation functions, also the frequency tuning functions are now being shifted from analog to digital implementation. Integration, cost and ease of programming are the primary motivations for doing this. This paper presents an alternative to the traditional digital frequency conversion architec...

Alternative Power Standard Realization at Radio Frequency

Modern ac-dc transfer equipments can operate up to 1 GHz at least. These equipments and the related ac-voltage measurements may be attractive for calibrating high frequency power sensors in term of ac-dc transfer difference instead of effective efficiency. Furthermore, below 30 MHz, the ac-voltage standard can be also used as powerful alternative and complement to the microcalorimeter technique...

Micro Power Radio Frequency Oscillator Design

Power allocation for orthogonal frequency division multiplexing-based cognitive radio networks with cooperative relays

The power allocation problem in orthogonal frequency division multiplexing-based cognitive radio (CR) networks with cooperative relays has been investigated here, where both the interference to primary users (PUs) and the power budget of the CR network are considered. The authors try to maximise the overall throughput of the CR network within the given constraints. The coupling variables in the...