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This paper presents a systematic approach to detect the frequency of Forced Oscillation (FO) in real-time signals obtained from phasor measurement units (PMUs). It is shown that, preprocessing of the signal by Empirical Mode Decomposition (EMD) technique leads to effective detection. The designed methodology can detect the frequency of FOs even in the presence of multiple mode mixing, whereas the...
This communication presents a small, low-profile planar triple-band microstrip antenna for WLAN/WiMAX applications. The goal of this communication is to combine WLAN and WiMAX communication standards simultaneously into a single device by designing a single antenna that can excite triple-band operation. The designed antenna has a compact size of $19 \times 25\;\text{mm}^{2}$ ($0.152 \lambda_{0}\;\times 0.2 \lambda_{0}$...
In this paper triple band U shape Slot Planar Inverted F antenna (PIFA) design using three shorting post is presented. The antenna is designed to be integrated in portable devices. The linearly polarized antenna exhibits good impedance matching, Omni directional radiation pattern and relatively high gain. Frequency ratio of 1.27, 2.11 have been achieved. A prototype has been designed, fabricated and...
A zigzag shaped, single band, small size Planar Inverted F antenna (PIFA) at 2.45 GHz is introduced and investigated. Total size of the antenna is 15mm × 6 mm which complies easily for integration with other devices viz. USB dongle. S11 of −32 dB at 2.45 GHz with −10 dB bandwidth of 4.2% has been obtained. Gain of the antenna is −1.82 dBi and pattern is omnidirectional. For proper matching with 50...
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