Design and implementation of Ka-band AlGaN/GaN HEMTs

BCB-bridged Ka-band MMICs using In0.5Al0.5As/In0.5Ga0.5As metamorphic HEMTs

The InAlAs/InGaAs metamorphic HEMT (mHEMT) two-stage Ka-band amplifier and DC-30 GHz distributed SPST switch were designed and fabricated using low-k benzocyclobutene (BCB) bridged technology. This fabrication technology takes the advantages of its low dielectric permittivity (2.7), low loss tangent (0.008), low curing temperature, low water up-take, and simple manufacturing process. The MMIC f...

Typical Ka band Satellite Beacon Receiver Design for Propagation Experimentation

This paper presents the design and simulation of a typical Ka band satellite beacon receiver for propagation experimentation. Using satellite beacon signal as a reference signal in satellite wave propagation study, is one of the most important methods. Satellite beacons are frequently available for pointing large antennas, but such signals can be used for measuring the effect of natural phenome...

Design and Development of Ka Band Digital Beacon Receiver for Ka Band Propagation Studies Experiment

India is planning to conduct its own Ka band propagation studies experiment in order to validate the existing ITU model and to develop a more accurate prediction model for its unique climate condition for guaranteed QoS. This experiment involves measurement of signal attenuation due to rain and development of appropriate mathematical propagation models. This requires a ground receiver to receiv...

Design and Implementation of Quasi Planar Ka Band Array Antenna Based on Travelling Wave Structures

7b.4 Effects of Via Layout on AlGaN/GaN HEMTs at Ka-band

A promising candidate for the next generation of microwave power devices, AlGaN/GaN HEMT has aroused numerous research interests due to its inherent high power characteristic. It has been studied intensively as high power microwave devices for satellite communication systems and in recent years, many GaN-based HEMTs have been reported for power amplification applications at Ka-band [13]. High g...