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This paper proposes to evaluate the installed performance of a slotted waveguide (SWA) antenna array on large platforms using an equivalent model based on near-field samplings over slots. The tangential electric fields over the SWA slots were first sampled to obtain equivalent magnetic current sources. The equivalent sources were then put on a closed perfect electric conducting box, same profile of...
Installed radiation pattern and isolation are critical performance indicators for antennas on large platforms. Prediction of these indicators is highly desirable for antenna placement. Conventional simulation methods require a detailed geometric model of the antenna to be mounted which is, in practice, unavailable from antenna's datasheets. This talk will introduce an effective and efficient equivalent...
A miniaturized tapered slot antenna is presented in this paper. A Vivaldi antenna with a novel feeding balun is selected as the basic design and resistive loading is used at the end of it to make a compact structure. The proposed antenna is fabricated with the size of 155mm (length)∗120mm (width)∗0.6mm (thickness). The measured results, which are in agreement with the simulated theory by HFSS, show...
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