Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Reexamination Certificate
2006-09-27
2010-06-01
Le, HoangAnh T (Department: 2821)
Communications: radio wave antennas
Antennas
With coupling network or impedance in the leadin
C343S7000MS, C333S024100
Reexamination Certificate
active
07728784
ABSTRACT:
In one embodiment, an integrated phase shifter includes: a plurality of stages, wherein each stage comprises: a transistor amplifier configured to amplify a voltage signal received at an input node into an amplified voltage signal at an output node according to a gain, wherein the transistor amplifier is configured such that the gain is proportional to a bias signal; an integrated inductor loading the output node, wherein the gain of the transistor amplifier is also proportional to an inductance of the integrated inductor; and a varactor diode loading the output node, wherein the varactor diode has a variable capacitance responsive to a control voltage.
REFERENCES:
patent: 7542005 (2009-06-01), Mohamadi
patent: 2007/0097010 (2007-05-01), Mohamadi
patent: 2008/0252546 (2008-10-01), Mohamadi
S. Bassagni, et al., A Distance Routing Effect Algorithm for Mobility (DREAM), Proc. Mobicom1998, Oct. 1998, pp. 76-84, Dallas, TX.
J. Liu, et al., “A Dual-Space Approach to Tracking and Sensor Management in Wireless Sensor Networks,” proc. of the 11th ACM Intl. Workshop, Sep. 2002, pp. 131-139.
R. Pasand, et al., The Capacity of Asynchronous Mary Time Hopping PPM UWB Mutiple Access Communication Systems, IEEE, 2004, pp. 4745-4749.
N. August, R. Thirugnanam, and D. Ha, An Adaptive UWB Modulation Scheme for Optimization of Energy, BER, and Data Rate, TM3-2, IEEE, 2004, pp. 182-186.
H. Zirath, et al., Development of 60-GHz Front-End Circuits for a High-Data-Rate Communication System, IEEE, Oct. 2004, vol. 39, No. 10, pp. 1640-1647.
F. Mohamadi, A Proposed Completely Electronically Controlled Beamforming Technology for Coverage Enhancement, IEEE p. 802.15 Working Group, Mar. 2005, Atlanta, GA.
C. Goldsmith, T.H. Lin, B. Powers, W.R. We, and B. Norvell, Micromechanical Membrane Switches for Microwave Applications, 1995 IEEE MTT-S Dig., 91-94.
A. Malczewski, et al., X-band RF MEMS Phase Shifters for Phased Array Applications, IEEE Microwave and Guided Wave Letters, Dec. 1999, 517-519, vol. 9.
J. Hayden and G. Rebeiz, Very Low-Loss Distributed X-Band and Ka-band MEMS Phase Shifters Using Meta-Air-Metal Capacitors, IEEE Transactions, Jan. 2003, vol. 51 No 1.
F. Mohamadi, Wafer Scale Integration of Active Antenna Array, RF Design, Feb. 2005, pp. 48-64.
F. Mohamadi, Si Integration with Millimeter Wave Phased Array Antenna, RF Design, Feb. 2004, pp. 40-48.
F. Mohamadi, Critical Data Timing in Distributed Systems, Defense Electronics, May 2004, pp. 13-18.
B. Kleveland, et al., Exploiting CMOS Reverse Interconnect Scaling in Multigigahertz Amplifier and Oscillator Design, IEEE Journal of Solid-State Circuits, Oct. 2001, 1480-1488.
T. Shibata, E. Sano, Characterization of MIS Structure Coplanar Transmission Lines for Investigation of Signal Propagation in Integrated Circuits, IEEE, 1990, p. 881-890, vol. 38.
Haynes & Boone LLP.
Le HoangAnh T
Tialinx, Inc.
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