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An antenna like effect is achieved by periodic swing of electrons from its capacitive element to the ground plane which behaves like an inductor. The authors further argued that the operation of a dielectric antenna resembles the antenna conceived by Marconi , the only difference is that inductive element is replaced by the dielectric material.
John Daniel Kraus (June 28, 1910 – July 18, 2004) was an American physicist and electrical engineer known for his contributions to electromagnetics, radio astronomy, and antenna theory. His inventions included the helical antenna, the corner reflector antenna, and several other types of antennas.
Typical GSM sector antenna outdoor unit. A sector antenna is a type of directional microwave antenna with a sector-shaped radiation pattern.The word "sector" is used in the geometric sense; some portion of the circumference of a circle measured in degrees of arc. 60°, 90° and 120° designs are typical, often with a few degrees 'extra' to ensure overlap and mounted in multiples when wider or ...
Cyber Monday savings are on fire. We found the top deals you can shop under $100, including Disney+, Amazon devices, toys, and more.
Amazon: Up to 30% off pet collars, smart cameras, pet food, flea collars, and more. Litter-Robot: $100 off bundles on the best-selling self-cleaning litter box. Petco: Buy one get one free on dog ...
Lowe's posted results that beat the Street's estimates, but investors are homing in on its ongoing negative sales growth.The home improvement retailer posted revenue of $20.17 billion, compared to ...
This reflective array television antenna consists of eight "bowtie" dipole driven elements mounted in front of a wire screen reflector. The X-shaped dipoles give it a wide bandwidth to cover both the VHF (174–216 MHz) and UHF (470–700 MHz) bands.
WASHINGTON (Reuters) -The U.S. budget deficit jumped nearly four-fold to $257 billion in October, a figure inflated by one-off factors, the Treasury Department said on Wednesday in a report that ...