TAG: antenna technology

Canadian Army to Test NovAtel’s GAJT GPS Anti-Jam Antenna

January 24, 2014By
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Public Works and Government Services Canada (PWGSC) has selected NovAtel’s GAJT-700ML antenna for testing on Canadian Army armored vehicles. The GAJT-700ML, developed in Calgary at NovAtel’s global headquarters, is a single-unit GPS anti-jam antenna system for land vehicles. The testing is being conducted through PWGSC’s Build in Canada Innovation Program (BCIP). NovAtel was selected to participate under the BCIP’s “safety... read more

Saelig Introduces Low-Cost SMD Antennas

January 17, 2014By
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Saelig Company, Inc., announces the availability of the Proant OnBoard SMD 2400 (2.4GHz band) and SMD GPS (GPS and GLONASS) miniature surface-mount (SMD) antennas for mobile wireless products. The OnBoard series moves embedded antenna integration one step ahead by combining high performance and low cost in this new OnBoard SMD family, the company said. Traditionally, small low-cost antennas for printed... read more

PCTEL to Showcase Antenna Products at MILCOM 2013

November 18, 2013By

PCTEL, Inc. will display its GPS, GNSS, mobile, and infrastructure communication antennas at the 2013 MILCOM Military Communications Conference. MILCOM is being held in the San Diego Convention Center, San Diego, California, November 18-20. PCTEL Connected Solutions provides advanced military antenna designs. Its high-precision, ruggedized antennas enable reliable communications, timing, and location services in the field, while its site solutions... read more

This article is tagged with , and posted in Defense News, Latest News, Product Showcase, Warfighter

FICOSA Integrates OriginGPS Antenna Module in Telematic Unit

March 4, 2013By

FICOSA demonstrated a telematic unit integrating a multi-service antenna module for positioning and satellite navigation supporting all the geographic positioning standards at the 2013 Mobile World Congress in Barcelona in February. The major advantage of this technological innovation is that the proposed multi-channel GPS/Galileo/GLONASS/BeiDou/QZSS receiver allows tracking across all the different navigation and positioning satellite standards worldwide, so that automakers... read more

This article is tagged with , , , , and posted in Transportation

Optimizing Small Antennas for Body-Loading Applications

September 10, 2012By
Test-Engineer

By Oliver Leisten and Viktor Knobe. Styling for consumer usage has progressively miniaturized of the antenna package to tiny dimensions compared to a free-space wavelength, even as devices with these miniscule antennas are designed to work close to the absorbent tissues of the user’s body and in the electromagnetic maelstrom of city street levels. GNSS antennas have responded with significant... read more

This article is tagged with , , , , and posted in LBS/Wireless

Innovation: GNSS Antennas and Humans

February 1, 2012By
FIGURE 6. Gain pattern of the patch antenna as measured by the measured C/N0 at all elevation angles as a function of antenna distance from body. Elevation angles [0º, 90º] have azimuths [180º, 360º], while elevation angles [90º, 180º] have azimuths [0º, 180º].

A Study of Their Interactions
A team of researchers from The University of Calgary report on tests conducted on two different types of GPS antennas operated in the vicinity of a human phantom — an artificial body with similar electromagnetic properties as that of a real human. read more

Innovation: Mobile-Phone GPS Antennas

February 1, 2010By
Figure 4. Sarantel miniature volute antenna

Can They Be Better?
We examine the antenna designs that provide GPS functionality to mobile phones and why most phones still do not provide GPS operation indoors. We also see what it will take to make them better. read more

This article is tagged with and posted in GNSS, Innovation

On the Edge: Multipath Measures Snow Depth

November 1, 2009By
FIGURE 2. Snow depth derived from GPS (red squares), the three ultrasonic snow depth sensors (blue lines), and field measurements (black diamonds). Bars on field observations are one standard deviation. GPS snow-depth estimates during the first storm (doy 85.5–86.5) are not shown (gray region) because the SNR data indicate that snow was on top of the antenna.

The September “Innovation” column in this magazine, “It’s Not All Bad: Understanding and Using GNSS Multipath,” by Andria Bilich and Kristine Larson (see www.gpsworld.com/multipath), mentions the use of multipath in studying soil moisture, ocean altimetry and winds, and snow sensing. An experiment the authors conducted, designed to study soil moisture, yielded a surprise bonus: a new methodology for measuring snow depth via GPS multipath. It has important implications for weather and flood forecasting, and could also bring new insight to bear on GPS antenna design. read more