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A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. [2] In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism (such as RF switches, varactors, mechanical actuators or tunable materials) that enable the intentional redistribution of the RF currents over the ...
Reconfigurable computing: changing the data path of a computing system in addition to the control flow; Control reconfiguration: changing the loop structure and controller parameters in an automatic control loop; Reconfigurable antenna: changing the antenna physically or electrically to control its antenna properties
Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal processing algorithms used to identify spatial signal signatures such as the direction of arrival (DOA) of the signal, and use them to calculate beamforming vectors which are used to track and locate the antenna beam on the mobile/target.
This antenna has fixed cell delays, configured by different cutout sizes in each cell, as can be seen in the top-right inset. Larger cutouts produce the dark rings visible in the overview. A reflectarray antenna (or just reflectarray ) consists of an array of unit cells, illuminated by a feeding antenna (source of electromagnetic waves ).
The prior art includes an RF MEMS frequency tunable fractal antenna for the 0.1–6 GHz frequency range, [18] and the actual integration of RF MEMS switches on a self-similar Sierpinski gasket antenna to increase its number of resonant frequencies, extending its range to 8 GHz, 14 GHz and 25 GHz, [19] [20] an RF MEMS radiation pattern ...
A file photo shows traditional British steak and ale pies. / Credit: BRETT STEVENS/Getty/iStock Images The pie heist wasn't the first food-related robbery in England this autumn.
A federal judge paused the child sexual abuse case involving President-elect Donald Trump's education secretary pick Linda McMahon, her husband Vince McMahon and World Wrestling Entertainment (WWE).
Soto's $765 million, 15-year agreement with the New York Mets — the richest contract in terms of total value to a player in U.S. major sports history, a massive move by billionaire Mets owner ...