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A theoretical study on ‘Planar Inverted F Antenna Technology’ is performed. Several research works done on PIFA are categorized and discussed. All the available theoretical, experimental and numerical method based analysis techniques are reviewed. Presence of PIFA in the category of low profile antenna in various application areas is reported. Effect of finite ground plane in wireless antenna applications...
Available closed-form Green's function (CFGF) representations for cylindrically stratified media are modified to obtain new CFGF representations that yield very accurate results for cases where source and field points are on the top of or very close to each other. Consequently, these new expressions can safely be used for the entries of the method of moments (MoM) impedance matrix that represent the...
In this letter, two novel three-port integrated-antenna-filter (IAF) modules are proposed. The idea of the IAF is elucidated with two configurations that consist of different combinations of narrow- and wideband microstrip/slot resonators. The return loss, mutual coupling, input impedance, radiation pattern, and insertion loss of the proposed configurations are analyzed. It was found that the mutual...
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