92 / 2020-05-17 23:41:07

15W Hybrid GaN Power Amplifier through Microstrip Radial Stub 4W GaN MMIC for X-band Radar Applicaions

Gallium Nitride (GaN), Microwave Monolothic Integrated Circuit (MMIC), Power Amplifier (PA), Microstrip radial stub (MRS), Loadpull Analysis

Microelectronic Devices and Materials > Silicon Integrated Circuits Technologies

Radar Front-Ends crave diverse power amplifiers,
which must be small-scaled, productive and economical. Our
approach elaborate optimized Design of high power GaN power
amplifier adopting microstirp radial stub in pair input and output
matching network for an X-band Radar applications that overlay
8.5 GHz to 9.5 GHz.To develop 15W power amplifier utilizing
a compact design of 4way power divider with proposed design
was accomplished in microstrip technology adopting radial stub
for the superior matching. The system achieves a 15W (43 dBm)
output power from a 23 dBm input drive with a 42% Power
Added Efficiency (PAE) and a 20 dB gain in CW mode operation
with a 28V drain voltage. The 4W MMIC design was completed
on the 0.25m gate length GaN on SiC process of UMS (GH25)
using Keysight ADS 2017 with die size of 1.8 x 2.4 mm
2
. The
proposed 15W power amplifier through a design of 4W MMIC
in GaN GH25 and power divider/combiner mounted on printed
circuit board consumes an area of 55 x 24 mm
2