New-Tech Europe | January 2016

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new products
New-Tech Magazine l 77
Fairview Microwave
Releases New Coaxial High
Power RF, Microwave and
Millimeter Wave Limiters
RF Limiters with High CW
Power Handling Up to 200 Watts
Peak Power New from Fairview
Microwave
Allen, TX – Fairview Microwave Inc.,
a supplier of on-demand microwave
and RF components, introduces
a new family of broadband, high
power limiters that aid in protecting
sensitive RF receivers and
components such as LNAs that are
in close proximity to high power
signals.
The new high power limiters from
Fairview Microwave operate over
broad frequencies ranging from 0.5
GHz to 40 GHz depending on the
model. This release contains seven
limiter designs featuring limiting
thresholds between 3 to 10 dBm
and low leakage power of 10 to 15
dBm. Fairview’s new selection of
coaxial limiters exhibits high CW
power handling up to 200 Watts
peak power and fast recovery times
of 10 to 100 nanoseconds
Fairview Microwave’s new
high power, broadband limiters
are constructed with high-rel,
ruggedized packages that are
designed to meet MIL-STD-202
environmental conditions for
humidity, shock, vibration, altitude
and temperature cycle. These
components are also guaranteed
to operate over temperature ranges
from -54° C to +85° C. The 50 Ohm
hybrid designs utilize limiting diode
circuitry and do not require any
external matching components.
“Our new portfolio of high power
RF limiters provides designers
and engineers the components
needed to protect their sensitive
RF receiver components from high
power signals that could result in
irreparable damage to the system,”
says Brian McCutcheon, Vice
President and General Manager at
Fairview Microwave. “These high
power limiters offer industry-leading
performance and are well suited
for applications such as electronic
warfare, instrumentation, fiber optic
communication systems, radar,
SATCOM, point-to-point radio,
telecom and R&D.
Fairview’s new selection of high
power coaxial limiters are now in-
stock and available to ship today.
You can view this line of new
products by visiting http://www.
broadband-high-power-coaxial-
limiters.html directly. Fairview
Microwave can be contacted at +1-
972-649-6678.
IZT RF Receiver R4000
Combines 120 MHz
Bandwidth with 32768-Point
FFT
Precise detection of frequency-agile
signals and bursts
Erlangen, December 02, 2015 –
The IZT GmbH launched a new
option for its powerful R4000 RF
receiver. The 32768-point FFT
option in combination with the
120 MHz real-time bandwidth
ensures reliable detection of fast
bursts and frequency-agile signals.
Even the most advanced hoppers
with extremely high hop rates
are detected under demanding
SNR environments. The Hopper
Detector plugin provides real-time
information about detected hoppers
containing bandwidth, dwell time
and time-of-arrival information.
Using the 32768-point FFT, the real-
time frequency resolution is less
than 5 kHz over the full 120 MHz
bandwidth. The transformation is
processed in a high-performance
FPGA. The continuous detection
without any gaps makes the R4000
a very powerful real-time signal
analyzer.
In parallel to the PSD (Power
Spectral Density), IQ content of sub-
bands or even the full bandwidth
can be retrieved and forwarded to
the sensor controller. This allows
to detect and analyze thousands of
signals in parallel.
Utilizing the 4096-point FFT
option, the time resolution of the
spectrum can be as fast as 25.6
µs per spectrum. This is orders
of magnitude faster than swept
analysis techniques and meets the
demand for systems being able to
capture today’s hopping, transient
signals.