Brian R Floyd

US Patent:

8558637, Oct 15, 2013

Filed:

May 12, 2010

Appl. No.:

12/778130

Inventors:

Duixian Liu - West Chester NY, US
Ho-Chung Chen - Taipei, TW
Brian Allan Floyd - Raleigh NC, US

Assignee:

Mediatek Inc. - Science-Based Industrial Park, Hsin-Chu
International Business Machines Corporation - Armonk NY

International Classification:

H03H 7/38

US Classification:

333 33, 333238

Abstract:

A circuit device includes a multilayer circuit carrier, a first signal transmission line, a second signal transmission line, a signal line transition element, a first impedance transformer, and a second impedance transformer. The multilayer circuit carrier includes a first layer and a second layer. The first signal transmission line is on the surface of the first layer. The second signal transmission line is on the surface of the second layer. The signal line transition element passes through the first layer and the second layer, and has a first signal terminal and a second signal terminal. The first impedance transformer is on the surface of the first layer and electrically connected between the first signal transmission line and the first signal terminal. The second impedance transformer is on the surface of the second layer and electrically connected between the second signal transmission line and the second signal terminal.

US Patent:

8618983, Dec 31, 2013

Filed:

Mar 30, 2010

Appl. No.:

12/750242

Inventors:

Ping-Yu Chen - Hsinchu, TW
Brian A. Floyd - Raleigh NC, US
Jie-Wei Lai - Taipei, TW
Arun S. Natarajan - White Plains NY, US
Sean T. Nicolson - Mountain View CA, US
Scott K. Reynolds - Amawalk NY, US
Ming-Dai Tsai - Hsinchu, TW
Alberto Valdes-Garcia - Hartsdale NY, US
Jing-Hong C. Zhan - Hsinchu, TW

Assignee:

International Business Machines Corporation - Armonk NY
MediaTek Inc. - Hsin-chu

International Classification:

H01Q 3/24
H01Q 3/36

US Classification:

342368, 342372, 342374

Abstract:

A phased-array transmitter and receiver that may be effectively implemented on a silicon substrate. The transmitter distributes to front-ends, and the receiver combines signals from front-ends, using a power distribution/combination tree that employs both passive and active elements. By monitoring the power inputs and outputs, a digital control is able to rapidly provide phase and gain correction information to the front-ends. Such a transmitter/receiver includes a plurality of radio frequency (RF) front-ends and a power splitting/combining network that includes active and passive components configured to distribute signals to/from the front-ends.

US Patent:

20110187585, Aug 4, 2011

Filed:

Feb 4, 2010

Appl. No.:

12/700397

Inventors:

Brian A. Floyd - Raleigh NC, US
Vipul Jain - Irvine CA, US
Arun S. Natarajan - Yorktown Heights NY, US
Scott K. Reynolds - Yorktown Heights NY, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - ARMONK NY

International Classification:

G01S 7/04
G01S 13/00

US Classification:

342179

Abstract:

A system and method is shown for receiving microwave/millimeter-wave signals. The system and method are balanced and can be effectively implemented on a silicon substrate using single pole double throw switches.