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antennas

EMC Bench Notes: Some Starting Tools

As a product designer, a major issue you'll face is radiated emissions. This month, we'll outline the basic tools to characterize and mitigate radiated emissions at your workbench. This summarizes the fundamental test equipment to identify sources of harmonic noise and characterize radiated emissions.

Far-Field Criterion for Wire‑Type Antennas

This article presents the derivation of the far-field criterion for two fundamental wire-type antennas: electric (or Hertzian) dipole and magnetic dipole.

Questions to Ask When Looking for an EMC Immunity Antenna

Antennas come in many different types, and it can sometimes be overwhelming to decide which one fits the need the best. In the case of immunity antennas, the correct selection may be the difference of reaching field and not. The antenna is the most important part of the system. Given that the amplifiers can be the costliest part of the system, one needs to take the time to research and find the correct antenna to make the best use of the available power.

Questions to Ask When Looking for an Emissions Antenna for EMC Testing

Antennas come in all shapes and sizes and can be used for both radiating and receiving. Selecting a good receiving antenna for emissions testing is not difficult if you take some necessary items into account.

Requirements of Antennas for EMC Testing

Antennas used for EMC testing possess several characteristics which make them ideal for use in a fast-paced, production-like EMC test environment. This article will briefly describe what these characteristics are, starting with the most important parameter – antenna factor.
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Robotic Teaming in Complex Environments Possible with Miniature Antenna

With the help of a brand-new low-frequency miniature antenna, mobile robots will enjoy powerful networking even in complex environments.

Dipole-Type Antennas in EMC Testing: Part II

Part II of this two-article series focuses on log-periodic and biconical antenna impedance, VSWR, and radiated emissions measurements.

Dipole-Type Antennas in EMC Testing

This two-article series is devoted to a dipole family of antennas used in EMC testing: half-wave dipole, quarter-wave monopole, log-periodic, and biconical antenna. Part I presents the antenna models and the construction details.

Transforming the World of Microwave Communications with Flat-Panel Technology

Los Alamos National Laboratory engineers have developed a flat-panel technology with exciting implications for the world of communications.

Let’s Talk About… Baluns

What is an antenna Balun? The term balun is a portmanteau (a blending of two words) of balanced/unbalanced – BAL-UN.
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