2-2018

RF & Wireless
Full-bridge Evaluation Board,
Optimized for High-frequency
Switching and Class D
Amplifiers
Richardson RFPD, Inc. announced the availability
and full design support capabilities
for a new evaluation board from GaN
Systems Inc. and Peregrine Semiconductor
Corporation. The GS61004B-EVBCD
evaluation board combines GaN Systems’
GaN E-HEMT with the ultra-fast PE29102
gate driver from Peregrine. Using this evaluation
platform, designers can characterize
the performance advantages that result
from operating a Class D amplifier at a high
switching frequency. Low dead time and
sub-nanosecond turn-on/off yield a higherefficiency
design with less total harmonic
distortion and EMI.
Additional key features of the
GS61004B-EVBCD include:
• Full-bridge with four GaN E-HEMTs and
two E-HEMT drivers
• GS61004B E-HEMT operable up to
100 MHz
• PE29102 E-HEMT driver operable up
to 40 MHz
• Best-in-class propagation delay:
10 to 45 ns, depending on configuration
• Optimized, Vcc independent, for
matched dead time
• Integrated, resistor-adjustable dead-time
control
• Control pins to evaluate phasing of each
half-bridge circuit
• Snubbers from each switch node to ground
■ Richardson RFPD, Inc.
www.richardsonrfpd.com
New 0.5 to 2.7 GHz, 2 W
Power Amplifier Module
Richardson RFPD, Inc. announced the
availability and full design support capabilities
for a new power amplifier module
from NewEdge Signal Solutions, Inc. The
ETX115 delivers high gain and high power
across a wide RF transmit bandwidth. This
2 W, compact module can be used for a wide
range of applications, including LTE signals
for use in tactical communication, test and
measurement or electronic warfare systems.
It uses a single 12 V supply.
Additional key features of the ETX115
include:
• P1dB: 33 dBm @ 1500 MHz
• Small signal gain: 38.0 +/-1.5 dB
• Integrated power supplies and sequencing
• Efficiency: >20%
• Size: 2.6” x 1.86” x 0.75“
• 50 Ohm operation
■ Richardson RFPD, Inc.
www.richardsonrfpd.com
L-Band Power Limiter Module
RFMW, Ltd. announced design and sales
support for a surface mount, silicon, PIN
diode based, limiter module from RFuW
Engineering. The RFLM-102202QB-290
offers both high-power CW and peak power
protection in the L-Band region of 1 to 2
GHz. CW power handling is 100 W and peak
power handling, of 5% duty cycle pulses, is
up to 1000 W. Flat leakage is 17 dBm typical.
Designed for optimal small signal insertion
loss of 0.25 dB the RFLM-102202QB-290
permits extremely low receiver noise figure
while simultaneously offering excellent
large input signal flat leakage for effective
receiver protection.
■ RFMW, Ltd.
www.rfmw.com
4 W Amplifier Boosts LAA/
LTE-U Signals
RFMW, Ltd. announced design and
sales support for a high-efficiency power
amplifier from Skyworks Solutions. The
SKY66288-11 offers 33.5 dBm of power
at P3dB compression. For highly linear
applications in small cell, massive MIMO
and Band 46 (5.15 to 5.925 GHz) cellular
infrastructure, the amplifier provides 28 dBm
with 25%, this internally matched
PA uses a single, 5 V supply and minimal
external components. The high efficiency
of the SKY66288-11 means that systems
can easily meet the requirements for the
use of Power Over Ethernet (POE) or other
DC power limited systems. Offered in a
compact, 5 x 5 mm package.
■ RFMW, Ltd.
www.rfmw.com
250 W Broadband SSPA
RFMW, Ltd. announced design and sales
support for a high power, solid state power
amplifier from Aethercomm. Designed
for high power, linear applications in both
ground and airborne systems, the SSPA 2.0-
6.0-250 delivers a nominal 250 W from 2 to
6 GHz and attains 300 W of saturated RF
power for non-linear requirements. Developed
using GaN technology for instantaneous,
broad band performance, the SSPA
2.0-6.0-250 offers 70 dB of small signal gain
and has 20-25% composite power added
efficiency across the band. Powered from a
28 V DC supply, standard features include
reverse polarity protection, over-temperature
protection, and over/under voltage protection.
Input and output SWR is specified at
2 maximum and a discrete blanking control
line is included with a 10 µs maximum
turn on/off time. This Aethercomm SSPA is
tested to MIL-STD-810 shock and vibration
requirements.
■ RFMW, Ltd.
www.rfmw.com
hf-praxis 2/2018 79