Chip Antenna with Vivaldi-Like Structure for W-Band Design

This paper proposes an application for a W-band chip antenna using the CMOS 180nm process. The chip size is 800 μm
^x
1200 μm, and it employs by Vivaldi-like antenna for design and performance analysis. The bandwidth of simulation is 99.3 - 114.8 GHz. The result of measurement shows that the reflection coefficient (SII) is 91.1 - 107.1 GHz. The antenna gain is simulated by high-frequency electromagnetic simulation software, which is about -5 dBi to -4 dBi, and the deepest resonance point is at 108 GHz, showing a gain of -4.6 dBi.