Paper Compares Gain Versus Radiated Efficiency
November 22, 2010 – Pulse Electronics Corporation (NYSE: PULS), a leading provider of electronic components,
has posted a white paper titled “Radiated Efficiency: a True Measure of Antenna Performance” on the Pulse Electronics web site.
Many types of antennas are needed and available because of the wide variety of communications devices that use antennas. Generally, an antenna’s performance is characterized by antenna efficiency or gain. Pulse Electronics’ article, written by Jouni Liflander, RF designer at Pulse Finland Oy, discusses basic antenna characteristics, their definitions, and the best ways to measure the performance of these antennas.
“If an antenna could be made to be a totally ideal electrical component, it would transform all of the power fed to its terminals to a radiating electromagnetic energy that propagates into the surrounding space. This is possible only in theory, and thus in real life some of the power fed to the antenna terminals is always lost. A good antenna, in general, radiates only 50 – 60 percent of the energy fed to it,” explained Liflander.
“Antenna efficiency is a useful and informative measure of antenna ‘economical efficiency’. With a quick glance, the antenna’s capability to use the power fed to the connection pads can be evaluated and the amount of power required from the radio module can be determined in order to achieve a certain performance level. However, antenna efficiency does not consider radiation direction. It is possible that an antenna has good efficiency, but in some specific direction or directions the radiation pattern has a null and thus no radiation is recorded in that specific direction. Measuring gain, though, only determines the efficiency of radiated output in one direction at a time. It tells nothing about the efficiency level that the antenna is achieving in all the other directions surrounding the antenna,” continued Liflander. “This paper delves more deeply into these issues.”
The paper can be accessed by clicking here: http://www.pulseelectronics.com/file.php?id=3720
About Pulse Electronics:
Pulse Electronics is the electronic components partner that helps customers build the next great product by providing the needed technical solutions. Pulse Electronics has a long operating history of innovation in magnetics, antennas and connectors, as well as the ability to ramp quickly into high-quality, high-volume production. The Company serves manufacturers in the wireless and wireline communications, power management, military/aerospace and automotive industries. Previously, the holding and operating companies were known as Technitrol, Inc. and Pulse Engineering, respectively. Pulse Electronics is a participating member of IEEE, ATIS, ETSI, HDMI, the DSL Forum, CommNexus, and MoCA.
Cautionary Note: This message contains ‘forward looking statements’ within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially. This release should be read in conjunction with the factors set forth in the Company’s report on Form 10-Q for the quarter ended October 1, 2010 in Item 1a under the caption “Factors that May Affect Our Future Results (Cautionary Statements for Purposes of the ‘Safe Harbor’ Provisions of the Private Securities Litigation Reform Act of 1995).”