Silicon based on-chip antenna using an LC resonator for near-field RF systems

Kenji Okabe, Wanghoon Lee, Yasoo Harada, Makoto Ishida
Solid-State Electronics, Volume 67, Issue 1, January 2012

Abstract

This paper presents the silicon based on-chip antenna using a LC resonator. The proposed antenna consists of a stacked capacitor and a spiral inductor on silicon substrate. The spiral inductor structure without underpass was proposed for improvement the performance of the silicon based-antenna. The resonant frequency of the fabricated antenna was measured as 465 MHz. Its return loss was 23.4 dB at resonant frequency. The antenna has a gain of −35.75 dBi due to small size and silicon substrate. However, the fabricated antenna has good performance in the near-field.

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