Loading…

A low phase noise LC-VCO with a high-Q inductor fabricated by wafer level package technology

This paper presents a CMOS voltage controlled oscillator (VCO) with a high-Q inductor fabricated by using a commercial wafer-level-package (WLP) technology. A new topology suitable for CMOS VCOs with high-Q WLP inductors is proposed. Measured Q of a WLP inductor is 40 in differential mode at around...

Full description

Saved in:
Bibliographic Details
Main Authors: Kazuma Ohashi, Yuka Kobayashi, Hiroyuki Ito, Kenichi Okada, Hideki Hatakeyama, Takuya Aizawa, Tatsuya Ito, Ryozo Yamauchi, Kazuya Masu
Format: Conference Proceeding
Language:English
Subjects:
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a CMOS voltage controlled oscillator (VCO) with a high-Q inductor fabricated by using a commercial wafer-level-package (WLP) technology. A new topology suitable for CMOS VCOs with high-Q WLP inductors is proposed. Measured Q of a WLP inductor is 40 in differential mode at around 1.9 GHz. A phase noise is −134.4 dBc/Hz at a 1MHz offset for 1.9GHz carrier frequency, and a FoM is −193 dBc/Hz. The VCO with the WLP inductor improves a phase noise of 6.4 dB as compared to VCOs with conventional on-chip inductors.
ISSN:1529-2517
2375-0995
DOI:10.1109/RFIC.2008.4561400