Products
virtual environment in a variety of different
traffic situations. For that purpose, test
drives are performed with a real, readyto
drive vehicle on a chassis dynamometer
or powertrain testbed. With the help
of realistic virtual driving scenarios it is
possible to test peripheral sensors, control
systems and actuators inside the vehicle
in a fully reproducible and reliable manner.
Automated vehicle functions are thus sufficiently
validated during development and
even before testing on the proving ground.
The range of environment simulations
carried out with AVL DRIVINGCUBE™
can now be extended to include GNSS
signals, bringing simulation closer to reality
than ever before. The vehicle’s GNSS
receiver (e.g. GPS) is stimulated realistically
using GNSS signals generated on
the testbed. This way, technical engineers
can identify exactly how sensors, automated
driving features and other actuators
respond inside the vehicle. The now
possible GNSS-based vehicle positioning
feature is a core functionality of automated
driving, and the approach ensures
that it is reliably tested.
For generating GNSS signals, Rohde
& Schwarz GNSS stimulators are used
(SMBV100B or SMW200A), which allow
the generation of signals for all of the available
satellite navigation systems (GPS,
Glonass, Galileo, BeiDou, QZSS, SBAS)
across all frequency bandwidths (L1, L2,
L5). This also makes them suitable for
testing multi-frequency receivers, which
are playing an increasingly important role
in automated driving.
www.rohde-schwarz.com
GaAs sub-harmonic
mixer MMICs
offer low conversion loss
Custom MMIC has announced a new
product category, adding to its growing
list of high performance MMICs, with the
introduction of three new GaAs Sub-harmonic
mixers.
The CMD303, CMD310/C3 MMICs
cover frequency ranges of 13-21 GHz and
20-32 GHz respectively, with excellent
conversion loss and isolation. Sub-harmonic
mixers are driven by a local oscillator
(LO) signal that is an integer fraction, or
sub-harmonic, of the desired LO frequency.
This eases the design, layout
and cost of the LO source for microwave
frequency designs. These new mixers
operate with a x2 LO, meaning the user
needs to provide the mixer with an LO at
half the desired mixing frequency.
www.CustomMMIC.com
Cisco enters chip market
with network processor
Cisco Systems has announced it is shipping
a network processor called the Silicon
One or Q100. Cisco also announced
the 8000 router using the silicon.
Cisco had previously been a customer
for network processors. Reportedly the
Silicon One is not only powering Cisco
hardware, such as the Cisco 8000 router
but also shipping to Facebook and Microsoft.
The company has reportedly spent
$1 billion on developing a new approach
to networking and the design of the
Silicon One ASIC. Cisco's approach is
now characterized as "silicon plus optics
plus software." Cisco's 8000 router is
designed to support 400 Gbps and higher
port rates.
The Silicon One is intended to be a
universal networking processor that can
be deployed in data centers, in modular
networking equipment and in enterprise
routers. It operates at 10 terabits per
second and is expected to scale up to
25 Tbps.
The chip seems to be descended from
Cisco's acquisition of Leabe Semiconductor
Ltd. (Caesarea, Israel) in March 2016.
Cisco does not appear to have disclosed
what foundry is manufacturing
the chip or what manufacturing process
is being used. As the technology is likely
to be close to the leading edge the likely
candidates are TSMC and Samsung.
www.cisco.com
60 GHZ phased array
antenna
enables cost-effective systems
The PER-PAx patented series of phased
array antennas from Peraso Technologies
complement the company’s
802.11ad chipsets, providing a cost-effective
way to increase system performance
and cover the extremely wide
bandwidth allowed in the unlicensed
60 GHz band.
The antennas feature a multi-layer
construction optimized for low-cost
with fibre-resin substrates and standard
process technology – eliminating exotic
soft-board or ceramic substrates. The
PER-PAG models use air-gap dielectric
for increased antenna gain and system
performance and the PER-PAD models
are designed to feed parabolic reflectors
and use phased array beam steering to
facilitate and optimize antenna aiming.
They deliver consistent gain response
over the 57-71 GHz unlicensed frequency
band over a wide operating
temperature range.
The PER7213-PAG is the first version
of the PER-AG series containing 64 elements
configured in a 2-D scanning array
with 22 dBi gain across the full frequency
range. In conjunction with the X720
60 GHz chipset from Peraso, a complete
system is able to achieve a 1.5 km link
without the use of a dish antenna.
The PER7211-PAD is the first PERPAD
model, designed to feed a 390-mm
dish with 44 dBi gain. In conjunction with
the X720 60 GHz chipset from Peraso, a
complete system is able to achieve a 5
km link with a data rate of 1 Gb/s.
“The PER-PAx antennas provide a
solution that the mmWave industry needs
in order to reduce system cost without
sacrificing performance,” explains Bill
McLean, President and CEO of Peraso.
“Coupled with our new X720 chipset, our
customers are able to build multi-gigabit
mmWave radio links with ranges in
excess of 5 kms.”
https://perasotech.com
26 MW January-February 2020 www.mwee.com
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