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A passive array radiator has been proposed in a single layer configuration to form an adaptive integrated antenna that consists of the inset feed rectangular microstrip patches and the reactance varying control RF circuit. The reactance varying RF circuit part is designed in a folded line configuration such that it does not contribute to the spurious radiation of the antenna. The antenna has been...
The design of compact diversity antenna for wireless handset applications has been presented. The results obtained demonstrate high potential of such a design for the handset antenna systems realizing various diversity techniques, such as switched diversity, maximal ratio combining and selection diversity. This antenna structure can also be utilized in a MIMO system, where the low mutual coupling...
In this paper, we present custom design of UHF RFID tag antennas for the identification of stacked in a package CDs. The main challenge of such a design has been the size minimization of the antenna elements since the tag is allowed to occupy a circular area of 33.5 mm in diameter on the central part of an actual CD free from metallization. At the same time, tag antennas have been optimized for the...
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