Method and apparatus for a clock and signal distribution network for a 60 GHz transmitter system
US8873339B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2012 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Dec 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/15311
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Herein is presented, a low power on-die 60 GHz distribution network for a beamforming system that can be scaled as the number of transmitters increases. The transmission line based power splitters and quadrature hybrids whose size would be proportional to a quarter wavelength (˜600 μm) if formed using transmission lines are instead constructed by inductors/capacitors and reduce the area by more than 80%. An input in-phase I clock and an input quadrature Q clock are combined into a single composite clock waveform locking the phase relation between the in-phase I clock and quadrature Q clock. The composite clock is transferred over a single transmission line formed using a Co-planar Waveguide (CPW) coupling the source and destination locations over the surface of a die. Once the individuals the in-phase I and quadrature Q clocks are required, they can be generated at the destination from the composite clock waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.