公开(公告)号：US20150349711A1

公开(公告)日：2015-12-03

申请号：US14548691

申请日：2014-11-20

Applicant: QUALCOMM Incorporated

Inventor： Yiping HAN ,  Yung-Chung LO ,  Zhang JIN

IPC: H03B5/12 ,  H04B1/38

CPC classification number: H03B5/12 ,  H03B5/1243 ,  H03B2201/025 ,  H04B1/38

Abstract: Certain aspects of the present disclosure provide an inductor-enclosed switchable voltage-controlled oscillator (VCO), for use in a frequency synthesizer of a radio frequency integrated circuit (RFIC), for example. One example apparatus is a frequency synthesizer that generally includes a first VCO circuit comprising a first inductor and a second VCO circuit comprising a second inductor, wherein at least a portion of the first VCO circuit is disposed inside a loop of the second inductor. According to certain aspects, at least a portion of the second VCO circuit is disposed inside a loop of the first inductor.

Abstract translation: 本公开的某些方面提供了例如用于射频集成电路（RFIC）的频率合成器中的电感器封闭的可切换压控振荡器（VCO）。 一个示例性装置是频率合成器，其通常包括第一VCO电路，其包括第一电感器和包括第二电感器的第二VCO电路，其中第一VCO电路的至少一部分设置在第二电感器的环路内。 根据某些方面，第二VCO电路的至少一部分设置在第一电感器的环路内。