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The category of simple antennas consists of dipoles, monopoles, and loop antennas. Nearly all can be made with a single segment of wire (ignoring the break made in the wire for the feedline connection). [citation needed] Dipoles and monopoles called linear antennas (or straight wire antennas) since their radiating parts lie along a single ...
Since 1952, this journal has delivered many thousands of articles on a wide range of topics of interest to specialists, practicing engineers, educators and students in the field of interest of the IEEE Antennas & Propagation Society. The Transactions publishes 12 issues per year and occasional Special Issues amounting to about 6000 pages annually.
Radio Frequency Systems (RFS) is a designer and manufacturer of wireless and broadcast cable solutions and accessories.Established in 1900, RFS operates across multiple sectors, including telecommunications, broadcasting, and industries including rail [1] and mining.
Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz. [1] [2] [3]
Antenna measurement techniques refers to the testing of antennas in order to ensure that the antenna meets specifications or simply to characterize it. Typical antenna parameters are gain , bandwidth , radiation pattern , beamwidth , polarization , impedance ; These are imperative communicative means.
The antenna gain, or power gain of an antenna is defined as the ratio of the intensity (power per unit surface area) radiated by the antenna in the direction of its maximum output, at an arbitrary distance, divided by the intensity radiated at the same distance by a hypothetical isotropic antenna which radiates equal power in all directions.
A flight rule requiring antenna stowage was waived and EURECA was lowered into the payload bay without latching its antenna. Mission specialists David Low and Peter Wisoff safely secured EURECA's dual antennas against the science satellite during the spacewalk.
Patch antenna gain pattern. A directional antenna or beam antenna is an antenna which radiates or receives greater radio wave power in specific directions. Directional antennas can radiate radio waves in beams, when greater concentration of radiation in a certain direction is desired, or in receiving antennas receive radio waves from one specific direction only.
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