Abstract: A direct division modulator is provided. The direct division modulator includes a symbol mapper converting the input data from a binary bitstream to a desired frequency deviation, such as where the frequency deviation data encodes the information from the bitstream. A converter generates a divide value using the desired frequency deviation information, and a summer adds an average value to the divide value. A converter quantizes the divide value and shapes quantization noise associated with the quantized divide value. A divider modulates a reference signal with the quantized divide value and generates an output signal.
Type:
Grant
Filed:
May 24, 2006
Date of Patent:
August 26, 2008
Assignee:
Axiom Microdevices, Inc.
Inventors:
Jeff Zachan, David Hartman, Ming Lin, Morten Damgaard, Scott Kee
Abstract: A distributed active transformer on a semiconducting substrate is provided. The distributed active transformer includes an outer primary, a secondary disposed adjacent to the outer primary, and an inner primary disposed adjacent to the outer primary and the secondary. A plurality of first three terminal devices is coupled to the outer primary at a plurality of locations. A plurality of second three terminal devices coupled to the inner primary at a plurality of locations, and each second three terminal device is disposed opposite from and coupled to one of the plurality of first three terminal devices. A plurality of power control actuation circuits is also provided, where each power control actuation circuit is coupled to one of the first three terminal devices and the second three terminal devices.
Type:
Grant
Filed:
March 31, 2005
Date of Patent:
August 14, 2007
Assignee:
Axiom Microdevices, Inc.
Inventors:
Rahul Magoon, Scott Kee, Ichiro Aoki, Frank Carr, Hui Wu, Jerry Twomey, Seyed-Ali Hajimiri
Abstract: An integrated power combiner is disclosed. The power combiner includes a first circular geometry primary winding having one or more inductive elements, such as an active winding with one or more driver stages. A circular geometry secondary winding is disposed adjacent to the first primary winding, such as an active winding with one or more driver stages. A second circular geometry primary winding is disposed adjacent to the secondary winding and has one or more inductive elements. One or more connections are provided between one or more of the inductive elements of the first circular geometry primary winding and one or more of the inductive elements of the second circular geometry primary winding.
Type:
Grant
Filed:
October 28, 2004
Date of Patent:
August 22, 2006
Assignee:
Axiom Microdevices, Inc.
Inventors:
Scott D. Kee, Ichiro Aoki, Hui Wu, Seyed-Ali Hajimiri, Frank Carr, Rabul Magoon, Alexandre Kral, Afshin Mellati, Florian Bohn, Donald McClymont