Planar inductors become one of the most critical components in RF ICs, and it is usually fabricated in square, rectangular, octagonal, or circular shapes.

• 最近几年，世界各国的研究人员在硅基射频集成电路的设计和制作方面进行了大量的研究，使硅基射频集成电路的性能不断得到提高。