Gain compensation in an ultra-wideband transceiver

Details Gain compensation in an ultra-wideband transceiver Gain compensation in an ultra-wideband transceiver

2007-11-20

2007-11-20

Sotomayor, John B (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Testing or calibrating of radar system

By monitoring

C342S195000, C342S091000, C342S092000, C342S194000

Reexamination Certificate

active

11280510

ABSTRACT:
A circuit for providing gain compensation to a swept frequency response in an ultra-wideband system includes using a variable amplitude IF signal into a gigahertz mixer to control the amplitude of a ultra-wideband transmitter. The variable amplitude IF signal is generated by a multiplier receiving a fixed-level intermediate frequency (IF) signal and a gain control input. The gain control input being provided by an digital-to-analog converter controlled by gain control values in a look-up table. The values of the look-up table are generated by inverting, normalizing, and scaling the uncompensated gain response of the ultra-wideband system. The gain compensated system produces a substantially flat amplitude response at the output of a quadrature receiver.

REFERENCES:
patent: 5073782 (1991-12-01), Huguenin et al.
patent: 5455590 (1995-10-01), Collins et al.
patent: 5557283 (1996-09-01), Sheen et al.
patent: 5573012 (1996-11-01), McEwan
patent: 5859609 (1999-01-01), Sheen et al.
patent: 6507309 (2003-01-01), McMakin et al.
patent: 6665577 (2003-12-01), Onyshkevych et al.
patent: 2007/0003078 (2007-01-01), Escott et al.
patent: 2007/0047621 (2007-03-01), Barnes et al.
patent: 2007/0049234 (2007-03-01), McCorkle et al.
patent: 2007/0076818 (2007-04-01), Barnes et al.
patent: 2007/0109180 (2007-05-01), Charpentier et al.
“A 0.1-23-GHz SiGe BiCMOS analog multiplier and mixer based on attenuation-compensation technique”, Ming-Da Tsai; Chin-Shen Lin; Chi-Hsueh Wang; Chun-Hsien Lien; Huei Wang Radio Frequency Integrated Circuits (RFIC) Symposium, 2004. Digest of Papers. IEEE Jun. 6-8, 2004 Ps: 417-420.
“3-D Holographic Body Scanner for Better Airport Security”,Energy Science News, www.pml.gov/energyscience/01-02/art1.htm, 4 pages.

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