25-28 GHz push-push VCO with flicker noise suppression circuits

カテゴリ：国際会議

論文No：B2

グループ名：【C】AVIC2025

発行日：2025/10/20

著者名：Hiyori Kishimoto (Okayama Prefectural University), Kiyotaka Komoku (Okayama Prefectural University), Jun Furuta (Okayama Prefectural University), Yasunori Suzuki (Okayama Prefectural University), Nobuyuki Itoh (Okayama Prefectural University)

キーワード：Push-push VCO,Flicker noise,Parallel resonator

要約(英語)：In this paper, we investigated circuits designed to suppress flicker noise and reduce the phase noise of the pushpush VCO. We studied three types of circuits, an NMOS pushpush VCO (Sgnd) and connecting a choke inductor (Schoke) or a parallel resonant circuit (Sres) to the source side of the crosscoupled transistor. It was confirmed that Sres and Schoke achieved significant suppression of flicker noise compared to Sgnd in the simulation. However, in the simulation and measurement results, the output power of Sres and Schoke was lower than that of Sgnd, so the phase noise was comparable, or in some cases, worse for Sgnd.

本誌掲載ページ：29-32p

原稿種別：英語

PDFファイルサイズ：918Kバイト