Antenna Systems & Technology - Summer 2015 - (Page 21)
TEST & MEASUREMENT
NEW PRODUCTS & SERVICES
AT4 Wireless Establishes First Anechoic MIMO
OTA Test Laboratory
AT4 wireless has completed the set-up of a new Laboratory for
Over the Air (OTA) Testing MIMO measurements at its Malaga, Spain H.Q. This facility will conduct radiated performance
measurements for cellular and wireless devices in a multipath
environment simulating a wide range of real world scenarios.
It is expected that a larger percentage of LTE and Wi-Fi devices will support MIMO in the coming months; AT4 wireless
is opening this laboratory first of all to support R&D and pretesting for its customers so they can be ready for future certification requirements from PTCRB and CTIA.
The AT4 wireless OTA MIMO facility consists of a fully anechoic chamber supplied by ETS-Lindgren, supporting a 16 antenna ring designed to generate single and multi-cluster environments, along with Anite's Propsim
F32 Channel Emulator. AT4 wireless has worked closely with both ETS-Lindgren and Anite for many years.
Anritsu Introduces Vector Voltmeter Mode with
Full A/B and B/A Ratio Capability for Microwave
Site Master
Anritsu Company has introduced a Vector Voltmeter Mode
(VVM) for its Microwave Site Master S820E, a handheld cable
and antenna analyzer offering coverage up to 40 GHz, that allows the S820E to be used as a drop-in replacement for legacy
Vector Voltmeter instruments. With the ability to provide full
A/B and B/A ratio capability without additional and expensive
VNA options, the S820E with the VVM provides field engineers
and technicians with a compact, durable, cost-efficient single-instrument solution to make key field measurements to ensure the proper deployment, installation, and maintenance of wireless networks.
The Site Master S820E is the only handheld field solution with a VVM option specified to 40 GHz, 20x more
than current alternative solutions. When using the A/B and B/A ratio capability, a unique Auto-tune feature
allows the S820E to successfully lock onto an external reference source signal that can be as much as ± 100
kHz away from the selected tuned frequency, without having to widen the measurement IFBW or establishing common 10 MHz reference time-base signals. Input sensitivity for either the A or B reference receiver
ranges automatically from +5 dBm to -60 dBm, surpassing the range of traditional vector voltmeters.
The S820E can measure 1 DUT or the user can select a table display format, which allows up to 12 DUTs
to be displayed simultaneously. All 12 DUT measurements may be made relative to a stored reference
measurement. The table display format simplifies matching multiple DUTs, and is well suited for multi
phased-array antenna systems, or when several DUTs need to be measured and matched to each other
or a reference DUT response.
The Site Master S820E has been developed specifically for field applications. Compactly designed, the
analyzer measures 250 by 177 by 61 mm and weighs <3.0 kg, and has a field-proven durable housing
that can withstand harsh environments. An Active Thermal Management feature helps the S820E achieve
the fastest warm-up time and to easily maintain stable operating temperatures across the entire operating
range of -10°C to 55°C. New efficient circuitry delivers >4 hours of battery life.
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Table of Contents for the Digital Edition of Antenna Systems & Technology - Summer 2015
Editor’s Choice
The Future of DAS - In-Building and Dynamic Capacity
Impedance Matching is No Match for Aperture Tuning
All Band VSAT Antenna Radomes: A New Perspective
Antennas
Components/Subsystems
Software / System Design
Test & Measurement
Industry News
Marketplace
DAS and Small Cells, Revisited
Antenna Systems & Technology - Summer 2015
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