The electrical-thermal co-simulation is applied for accurately modeling and analysis of transient electrical and thermal behaviors of large-scale interconnects. The self-heating effects under trapezoidal pulses and the thermal breakdowns under ESDinduced stresses are both analyzed with the co-simulation. The localized high temperatures, large temperature gradients, and the temperature increase in a stepwise manner are all observed through the co-simulation. It has also been found that the transient thermal responses of the interconnects are very sensitive to the magnitude of the injected electromagnetic pulse and the associated power maps.ABSTRACT: A terahertz (THz) corrugated conical horn antenna with ring-loaded slots based on silicon micromachining technology is proposed. The radiation patterns are designed to be asymmetrical in both the E-and H-plane with sidelobe below 230 dB in the E-plane at 500 GHz. Good agreements between the simulated and measured results are observed.ABSTRACT: We present a dual resonant substrate integrated waveguide cavity-backed slot antenna with over 34% bandwidth at X-band. A sequential rotation feeding scheme is employed to achieve circular polarization using two differential ports, resulting in excellent isolation. The antenna achieves wideband circularly polarized radiation with symmetric patterns in both principal planes. The full-wave simulation results demonstrate a peak gain of 6.0 dB and a radiation efficiency >96% over the operating impedance bandwidth.