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Due to the mutual coupling between the different excited ports, designing multiple wideband matching circuits for handset antennas is not straightforward. This paper presents design principles for wideband matching circuits of two-ports and analyzes their significance in the case of multiple noncontiguous frequency bands. The proposed optimization procedure helps to design matching circuits, which...
Matching circuits have not been paid much attention when studying antennas, although they have a significant effect on the performance of the designed antenna. This paper presents an easily adopted procedure to design wideband matching circuits for an arbitrary, frequency-dependent, real-life load impedance through optimization using a commercial circuit simulator. Several CCE antenna examples demonstrate...
When searching for an impedance matching circuit yielding the maximum bandwidth with certain number of matching elements, the choice of the correct topology is crucial. Compared to optimal two-element (L-section) matching, the improvement of bandwidth provided by a third element can be anything from negligible to significant. In this paper, two approaches for finding an optimal three-element matching...
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