发明授权
- 专利标题: Radio frequency circuit with integrated on-chip radio frequency inductive signal coupler
- 专利标题(中): 具有集成片上射频感应信号耦合器的射频电路
-
申请号: US11679573申请日: 2007-02-27
-
公开(公告)号: US07869784B2公开(公告)日: 2011-01-11
- 发明人: Lianjun Liu
- 申请人: Lianjun Liu
- 申请人地址: US TX Austin
- 专利权人: Freescale Semiconductor, Inc.
- 当前专利权人: Freescale Semiconductor, Inc.
- 当前专利权人地址: US TX Austin
- 代理机构: Ingrassia Fisher & Lorenz, P.C.
- 主分类号: H04B1/28
- IPC分类号: H04B1/28
摘要:
A radio frequency (RF) circuit (100) as disclosed herein is fabricated on a substrate (204, 304) using integrated passive device (IPD) process technology. The RF circuit (100) includes an RF inductor (200, 300) and an integrated inductive RF coupler (202, 302) located proximate to the RF inductor (200, 300). The inductive RF coupler (202, 302), its output and grounding contact pads, and its transmission lines are fabricated on the same substrate (204, 304) using the same IPD process technology. The inductive RF coupler (202, 302) includes a coupling section (212, 306) that is either located inside or outside a spiral of the RF inductor (200, 300). The inductive RF coupler (202, 302) and the RF inductor (200, 300) are cooperatively configured to function as the windings of an RF transformer, thus achieving the desired coupling. The inductive RF coupler (202, 302) provides efficient and reproducible RF coupling without increasing the die footprint of the RF circuit (100).
公开/授权文献
信息查询