A test setup has been devised here to quantify EMI. The frequency range of operation is proposed in GHz range. Measurement of internal fields via antennas is taken as a parameter for characterising interaction between digital components. For low frequencies MoM and FEM solvers is apt for simulation purposes. For high frequencies statistical approach has been chosen. Using these techniques real components are being reproduced as simplistic geometric models. This setup can be further extended to real time PC casing.
A novel design of a circular polarized patch antenna for GNSS application. The proposed antenna generates four resonant frequencies. With the proposed antenna wide operating bandwidth covers several wireless communication system including GSM (880 ~960 MHz), DCS (1710~1880 MHz), PCS (1850 ~ 1990 MHz), UMTS (1920 ~2170 MHz), WiBro (2300 ~ 2390 MHz), GLONASS (1602 ~ 1615.5 MHz).
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