Antenna Systems & Technology - 2013 Spring - (Page 4)
EDITOR’S CHOICE
Anritsu Expands VNA Master Family with
Models Providing 15 GHz Coverage
Anritsu Company has introduced the MS2027C and MS2037C,
two members of its VNA Master handheld vector network analyzer series that bring the inherent advantages of VNA Master
to 15 GHz frequency applications. Providing improved measurement speed and high accuracy in a compact design measuring as
small as 8.3 by 12.4 by 3.1 inches, the MS2027C and MS2037C
are well suited for demanding field use environments, including
aerospace and defense, SATCOM, commercial wireless backhaul
and research.
The MS2027C VNA Master, which provides frequency coverage from 5 kHz to 15 GHz, specifically addresses complex cable,
waveguide and antenna field test needs with accurate, vector-corrected two-port magnitude, phase and time or distance domain
measurements. A two-port, two-path, fully-reversing VNA, the
MS2027C can be used by field engineers and technicians to measure and display all S-parameters with a single connection. Ultrafast 350 µsec per data point sweep speed makes the MS2027C
suited for filter tuning.
Incorporating
a
high-performance
spectrum
analyzer
with ultra-low noise
to the VNA capabilities, the MS2037C adds
integrated
spectrum
analysis for on-site
verification or troubleshooting. VNA Master
offers powerful handheld spectrum analysis capability, with improved performance in sensitivity, dynamic range, phase noise,
frequency accuracy and sweep speed. A built-in pre-selector
eliminates spurious in displays.
Both the MS2027C and MS2037C incorporate the field-proven
VNA Master handheld platform. Their small size, light weight (10.5
lbs.) and battery operation make the analyzers improved to bulky
benchtop or portable VNAs in field environments. Each model is
designed with a high-resolution, intuitive Graphical User Interface
(GUI), as well as an 8.4-inch daylight-viewable display that offers
hands-free operation while viewing measurement results.
High-Throughput Ka-Band Satellite
Communications On H-3 Helicopter
ViaSat, Inc. has demonstrated a high-performance Ka-band
satellite communication system that delivers beyond line-ofsight broadband for rotary wing aircraft. This advanced system
provided sustained data rates of 4 Mbps from the helicopter to a
ground station and 8 Mbps to the helicopter despite high shock
and vibration and the inherent repetitive signal blockage from
rotating blades. While previous “through the blade” demonstrations have proved the underlying patented and patent-pending
technology, this flight test at Patuxent River, Maryland used a
Sikorsky H-3 helicopter.
Flight conditions encompassed rigorous maneuvers, includ-
4
Antenna Systems & Technology Spring 2013
ing severe banking and operation through several rotor orientations while running data-intensive applications. During multiple
tests, operators were able to simultaneously run five VoIP calls,
three VTCs from air to ground and streaming videos from the
Internet to the aircraft. All applications ran without packet loss
or video dropout.
This
system
builds on proven
ViaSat mobile Ku
and Ka technologies using a modified
waveform
optimized for efficient through-theblade broadband
communications.
The system can be
used on manned and unmanned rotary wing platforms and provides communications regardless of the number of blades, blade
size, number of rotors or their orientation on the airframe.
A patent-pending shock and vibration isolation system enables
the antenna to maintain lock with the satellite on the ground and
in-flight. The antenna used in the flight test was the new ViaSat
VR-12 Ka antenna, which is a form and fit alternative to the VR12 Ku-band antenna. The VR-12 Ku has achieved milestones of
500 deliveries and more than 500,000 mission hours.
Winegard Releases Indoor HDTV Antenna
Winegard has launched an amplified version of its high tech
FlatWave over-the-air indoor HDTV antenna called the FlatWave
Amped. The multi-directional amplified antenna draws in dual
band (VHF/UHF) HDTV broadcast signals up to 50 miles away.
“This newest member of our patented FlatWave HDTV antenna family is the best one yet,” said Winegard national sales
manager Grant Whipple. “We have set a new standard for amplifier performance and the Amped is the first antenna to utilize
this technology. The Amped is one of very few indoor dual band
antennas on the market, which means consumers don’t have to
miss out on a major network that other UHF-only indoor antennas may experience.”
This amplifier technology lowers the noise floor
to 1.0 dB typical, which
is 200 percent to 400
percent lower than competing amplifiers. That
translates to antenna performance that matches an
antenna two to three times
larger and provides crystal clear HDTV pictures.
The FlatWave Amped measures 13 inches by 12 inches and
comes with an 18.5 ft white coaxial cable and an embedded digital amplifier that delivers the same high quality, free true HDTV
picture of the original. FlatWave Amped retails for $89.99.
www.AntennasOnline.com
http://www.AntennasOnline.com
Table of Contents for the Digital Edition of Antenna Systems & Technology - 2013 Spring
Antenna Systems & Technology - 2013 Spring
Editor’s Choice
Antenna Technology Applications for Advanced LTE
Case Study: Improve Antenna Alignment Monitoring by Preventing Condensation
Antennas
Components/Subsystems
Software/System Design
Test & Measurement
Industry News
Marketplace
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