A new family of stubby external antennas has been introduced by Pulse, a Technitrol (News - Alert) company, which deals in electronic component and subassembly design and manufacturing. Pulse's antennas, with an efficiency of more than 55 percent in all bands and a height of less than 50mm, will enable wireless devices to access the major cellular networks worldwide.

Hence a reliable wireless M2M connections is provided by these antennas in a small form factor in applications like smart metering, monitoring, industrial controls and data-logging.

Frequency bands 824-960 and 1710-1990 MHz for all widely used cellular bands for 2G, 2.5G and 3G applications are covered by the stubby antennas. With a peak gain of 1 dBi in the 824-960 MHz range, 2 dBi in the 1710-1990 MHz range, and 2.5 dBi in the 1920-2170 MHz range and an impedance of 50 Ohms, the stubby antennas have an operating temperature range of -40 to 85 degree Celsius.

Two configurations are available for Pulse's (News - Alert) stubby cellular antennas. For connection to the top of a device or modem, the straight antennas, the W1900 and W1902 are available while for a side connection, the W1910 and W1911 with a right angle are available. The height of W1910/11 is 49mm while the W1900/02 is 49.5mm.

Pulse's stubby antennas' peak radiated efficiency ranges from 50 percent to 65 percent. This is the percentage of the original radio signal which is actually radiated from the antenna. With a higher efficiency, less power is required from the radio which means the design is more economical. Antennas with lower efficiency require amplification drawing more current. This leads to increase in energy consumption. Higher efficiency, provided by greater signal strength leads to higher system integrity.

According to Elaine Baxter, marketing manager, Pulse Wireless Devices Antenna Division, this new family of stubby antennas is a great addition to the expanding Pulse M2M antenna range. Companies will be able to quickly bring their wireless M2M modems to market with these reliable cellular antennas which come in small form factors.

Packaged in quantities of 20 each, Pulse's stubby cellular antennas, comes standard with SMA (News - Alert) male connectors. They are available with SMA RP-male versions with additional connector options to follow.