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A new low profile antenna comprised of a PIFA and an Artificial Magnetic Conductor (AMC) are presented. The PIFA antenna is placed at the edge of the AMC structure for bandwidth improvement. Use of a square-ring elementary element AMC without via is shown to maintain the PIFAs radiation efficiency with a low profile. The chosen AMC exhibits the required zero phase reflection coefficient for normally...
In response to the continually increasing appetite for bandwidth, most transistor technologies have recently made great strides towards higher cutoff frequencies: Silicon MOSFETs, SiGe HBTs, InP-based HEMTs and a variety of InP -based HBTs all show cutoff frequencies fT and/or fMAX exceeding 300 GHz, and in some cases approaching 800 GHz. Proponents of various technologies have stated that the development...
Performance of optical wireless communication (OWC) systems can be optimised using constant optical power transmission in conjunction with forward error control coding. A new family of constant power error correcting codes using multiple pulse position modulation optical transmission are introduced. This doubly featured technique may extend the capability of many difficult wireless optical links beyond...
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