US5764696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chiral and dual polarization techniques for an ultra-wide band communication system
Assignee: RL FORTIN PC
•
Filing: 1995-06-02
•
Granted: 1998-06-09
•
Expires: 2015-06-02
Abstract
Abstract Chiral and dual polarization techniques for an ultra-wide band communication system provide an ultra-wide band signal having signal components in two dimensions. The polarization techniques utilize two signal paths to excite a pair of linear, orthogonal antennas. The pulses transmitted along one signal path are delayed with respect to the pulses transmitted along the second signal path such that one antenna is excited with a pulse that is out of phase with respect to the pulse that is exciting the other antenna. With chiral polarization, one signal is delayed in time by an amount such that it reaches a maximum when the other signal is at an adjacent minimum. With dual polarization, one signal is delayed by more than a pulse width. Because the signal is split and transmitted using two orthogonal, linear antennas, the transmitted signal has an electric field component in two dimensions. Because the signal in one signal path is delayed, the transmitted signal, the transmitted signal appears to rotate about the axis of propagation in the right-hand or left-hand direction (depending on the orientation of the antennas relative to one another and on which signal path is delayed). Because chiral and dual polarized signals have signal components in two dimensions, they can be received by receiver systems using either a single linear antenna, or a pair of orthogonal, linear antennas.
Inventors
- 👤 Mark A. Barnes
- 👤 Larry W. Fullerton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:06
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/10
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
76 words
An ultra-wide band communication system, comprising: an ultra-wide band transmitter for generating an ultra-wide band signal; a splitter for splitting said ultra-wide band signal into a first and second signal; a time delay unit to delaying said second signal with respect to said first signal to provide a delayed signal; and first and second linear orthogonal antennas, said first antenna being excited by said first signal and said second antenna being excited by said delayed signal.
Claim 2
Dependent Claim
76 words
An ultra-wide band communication system, comprising: an ultra-wide band transmitter for generating an ultra-wide band signal; a splitter for splitting said ultra-wide band signal into a first and second signal; a time delay unit to delaying said second signal with respect to said first signal to provide a delayed signal; and first and second linear orthogonal antennas, said first antenna being excited by said first signal and said second antenna being excited by said delayed signal.
Claim 3
Dependent Claim
63 words
The system of claim 1, wherein said time delay means comprises a first transmission line for providing said first signal to said first antenna and a second transmission line for providing said second signal to said second antenna, wherein the relative lengths of said first and second transmission lines are such that said second signal is delayed with respect to said first signal.
Claim 4
Dependent Claim
36 words
The system of claim 1, wherein said time delay means comprises means for delaying said second signal by an amount such that said second signal reaches a maximum when said first signal is at a minimum.
Claim 5
Dependent Claim
39 words
The system of claim 1, wherein said time delay means comprises means for delaying said second signal with respect to said first signal by an amount that is greater than a pulse width of the ultra-wide band communication system.
Claim 6
Dependent Claim
23 words
The system of claim 1, wherein said splitter further comprises means for combining received ultra-wide band signals to provide a combined receive signal.
Claim 7
Dependent Claim
17 words
The system of claim 5, further comprising an ultra-wide band receiver for receiving said combined receive signal.
Claim 8
Dependent Claim
18 words
The system of claim 5, further comprising low noise amplifier means for amplifying said received ultra-wide band signals.
Claim 9
Dependent Claim
88 words
In an ultra-wide band communication system for transmitting information in an ultra-wide band signal by pulse position modulation of a series of narrow pulses, a method for transmitting the ultra-wide band signal comprising the steps of: splitting said ultra-wide band signal into first and second ultra-wide band signals; delaying said second signal with respect to said first signal to provide a delayed signal; exciting a first linear antenna with said first signal; and exciting a second linear antenna orthogonal to said first linear antenna with said delayed signal.
Claim 10
Dependent Claim
88 words
In an ultra-wide band communication system for transmitting information in an ultra-wide band signal by pulse position modulation of a series of narrow pulses, a method for transmitting the ultra-wide band signal comprising the steps of: splitting said ultra-wide band signal into first and second ultra-wide band signals; delaying said second signal with respect to said first signal to provide a delayed signal; exciting a first linear antenna with said first signal; and exciting a second linear antenna orthogonal to said first linear antenna with said delayed signal.
Claim 11
Dependent Claim
57 words
The method of claim 8, wherein said delay step comprises the steps of transmitting said first signal through a first transmission line and transmitting said second signal through a second transmission line, wherein the relative lengths of said first and second transmission lines are such that said second signal is delayed with respect to said first signal.
Claim 12
Dependent Claim
36 words
The method of claim 8, wherein said delay step comprises the step of delaying said second signal by an amount such that said second signal reaches a maximum when said first signal is at a minimum.
Claim 13
Dependent Claim
39 words
The method of claim 8, wherein said delay step comprises the step of delaying said second signal with respect to said first signal by an amount that is greater than a pulse width of the ultra-wide band communication system.
Claim 14
Dependent Claim
21 words
The method of claim 8, further comprising the step of combining received ultra-wide band signals to provide a combined receive signal.
Claim 15
Dependent Claim
119 words
An impulse communication system, comprising: a first ultra-wide band transmitter for generating a first ultra-wide band signal; a second ultra-wide band transmitter for generating a second ultra-wide band signal; a controller to control said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal; and first and second linear orthogonal antennas, said first antenna being excited by said first ultra-wide band signal and said second antenna being excited by said second ultra-wide band signal; and wherein said controller triggers said first and second ultra-wide band transmitters such that said second ultra-wide band signal reaches a maximum when said first ultra-wide band signal is at a minimum.
Claim 16
Dependent Claim
119 words
An impulse communication system, comprising: a first ultra-wide band transmitter for generating a first ultra-wide band signal; a second ultra-wide band transmitter for generating a second ultra-wide band signal; a controller to control said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal; and first and second linear orthogonal antennas, said first antenna being excited by said first ultra-wide band signal and said second antenna being excited by said second ultra-wide band signal; and wherein said controller triggers said first and second ultra-wide band transmitters such that said second ultra-wide band signal reaches a maximum when said first ultra-wide band signal is at a minimum.
Claim 17
Dependent Claim
132 words
An impulse communication system, comprising: a first ultra-wide band transmitter for generating a first ultra-wide band signal; a second ultra-wide band transmitter for generating a second ultra-wide band signal; a controller to control said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal; and first and second linear orthogonal antennas, said first antenna being excited by said first ultra-wide band signal and said second antenna being excited by said second ultra-wide band signal; and wherein said controller triggers said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal by an amount that is greater than a pulse width of the ultra-wide band communication system.
Claim 18
Dependent Claim
132 words
An impulse communication system, comprising: a first ultra-wide band transmitter for generating a first ultra-wide band signal; a second ultra-wide band transmitter for generating a second ultra-wide band signal; a controller to control said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal; and first and second linear orthogonal antennas, said first antenna being excited by said first ultra-wide band signal and said second antenna being excited by said second ultra-wide band signal; and wherein said controller triggers said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal by an amount that is greater than a pulse width of the ultra-wide band communication system.
Claim 19
Dependent Claim
140 words
In an impulse communication system for transmitting information in an ultra-wide band signal by pulse position modulation of a series of narrow pulses, a method for transmitting the ultra-wide band signal comprising the steps of: generating first and second ultra-wide band signals using first and second ultra-wide band transmitters; controlling said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal; exciting a first linear antenna with said first ultra-wide band signal; and exciting a second linear antenna orthogonal to said first linear antenna with said second ultra-wide band signal; and wherein said controlling step includes the step of triggering said first and second ultra-wide band transmitters such that said second ultra-wide band signal reaches a maximum when said first ultra-wide band signal is at a minimum.
Claim 20
Dependent Claim
140 words
In an impulse communication system for transmitting information in an ultra-wide band signal by pulse position modulation of a series of narrow pulses, a method for transmitting the ultra-wide band signal comprising the steps of: generating first and second ultra-wide band signals using first and second ultra-wide band transmitters; controlling said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal; exciting a first linear antenna with said first ultra-wide band signal; and exciting a second linear antenna orthogonal to said first linear antenna with said second ultra-wide band signal; and wherein said controlling step includes the step of triggering said first and second ultra-wide band transmitters such that said second ultra-wide band signal reaches a maximum when said first ultra-wide band signal is at a minimum.
Claim 21
Dependent Claim
153 words
In an impulse communication system for transmitting information in an ultra-wide band signal by pulse position modulation of a series of narrow pulses, a method for transmitting the ultra-wide band signal comprising the steps of: generating first and second ultra-wide band signals using first and second ultra-wide band transmitters; controlling said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal; exciting a first linear antenna with said first ultra-wide band signal; and exciting a second linear antenna orthogonal to said first linear antenna with said second ultra-wide band signal; and wherein said controlling step includes the step of triggering said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal by an amount that is greater than a pulse width of the ultra-wide band communication system.
Claim 22
Dependent Claim
153 words
In an impulse communication system for transmitting information in an ultra-wide band signal by pulse position modulation of a series of narrow pulses, a method for transmitting the ultra-wide band signal comprising the steps of: generating first and second ultra-wide band signals using first and second ultra-wide band transmitters; controlling said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal; exciting a first linear antenna with said first ultra-wide band signal; and exciting a second linear antenna orthogonal to said first linear antenna with said second ultra-wide band signal; and wherein said controlling step includes the step of triggering said first and second ultra-wide band transmitters such that said second ultra-wide band signal is delayed with respect to said first ultra-wide band signal by an amount that is greater than a pulse width of the ultra-wide band communication system.
Claim 23
Dependent Claim
75 words
An impulse communication system, comprising: an ultra-wide band transmitter for generating an ultra-wide band signal; a splitter for splitting said ultra-wide band signal into a first and second signal; a time delay unit to delay said second signal with respect to said first signal to provide a delayed signal; and first and second linear orthogonal antennas, said first antenna being excited by said second signal and said second antenna being excited by said delayed signal.
Claim 24
Dependent Claim
75 words
An impulse communication system, comprising: an ultra-wide band transmitter for generating an ultra-wide band signal; a splitter for splitting said ultra-wide band signal into a first and second signal; a time delay unit to delay said second signal with respect to said first signal to provide a delayed signal; and first and second linear orthogonal antennas, said first antenna being excited by said second signal and said second antenna being excited by said delayed signal.
Claim 25
Dependent Claim
63 words
The system of claim 17, wherein said time delay unit comprises a first transmission line for providing said first signal to said first antenna and a second transmission line for providing said second signal to said second antenna, wherein the relative lengths of said first and second transmission lines are such that said second signal is delayed with respect to said first signal.
Claim 26
Dependent Claim
36 words
The system of claim 17, wherein said time delay unit comprises means for delaying said second signal by an amount such that said second signal reaches a maximum when said first signal is at a minimum.
Claim 27
Dependent Claim
39 words
The system of claim 17, wherein said time delay unit comprises means for delaying said second signal with respect to said first signal by an amount that is greater than a pulse width of the ultra-wide band communication system.
Claim 28
Dependent Claim
23 words
The system of claim 17, wherein said splitter further comprises means for combining received ultra-wide band signals to provide a combined receive signal.
Claim 29
Dependent Claim
17 words
The system of claim 21, further comprising an ultra-wide band receiver for receiving said combined receive signal.
Claim 30
Dependent Claim
18 words
The system of claim 21, further comprising low noise amplifier means for amplifying said received ultra-wide band signals.
Claim 31
Dependent Claim
87 words
In an impulse communication system for transmitting information in an ultra-wide band signal by pulse position modulation of a series of narrow pulses, a method for transmitting the ultra-wide band signal comprising the steps of: splitting said ultra-wide band signal into first and second ultra-wide band signals; delaying said second signal with respect to said first signal to provide a delayed signal; exciting a first linear antenna with said first signal; and exciting a second linear antenna orthogonal to said first linear antenna with said delayed signal.
Claim 32
Dependent Claim
87 words
In an impulse communication system for transmitting information in an ultra-wide band signal by pulse position modulation of a series of narrow pulses, a method for transmitting the ultra-wide band signal comprising the steps of: splitting said ultra-wide band signal into first and second ultra-wide band signals; delaying said second signal with respect to said first signal to provide a delayed signal; exciting a first linear antenna with said first signal; and exciting a second linear antenna orthogonal to said first linear antenna with said delayed signal.
Claim 33
Dependent Claim
57 words
The method of claim 24, wherein said delay step comprises the steps of transmitting said first signal through a first transmission line and transmitting said second signal through a second transmission line, wherein the relative lengths of said first and second transmission lines are such that said second signal is delayed with respect to said first signal.
Claim 34
Dependent Claim
36 words
The method of claim 24, wherein said delay step comprises the step of delaying said second signal by an amount such that said second signal reaches a maximum when said first signal is at a minimum.
Claim 35
Dependent Claim
39 words
The method of claim 24, wherein said delay step comprises the step of delaying said second signal with respect to said first signal by an amount that is greater than a pulse width of the ultra-wide band communication system.
Claim 36
Dependent Claim
21 words
The method of claim 24, further comprising the step of combining received ultra-wide band signals to provide a combined receive signal.
References Cited (Backward Citations)
US3921171A
Cited
US4266201A
Cited
US4641317A
Cited
US4743906A
Cited
US4813057A
Cited
US4979186A
Cited
US5363108A
Cited
US4849990A
Cited
US4710944A
Cited
FR2609224A1
Cited
US5408351A
Cited
US5519400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-06-08 | 2001-12-08 | 2002-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-08 | 2005-12-08 | 2006-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-08 | 2009-12-08 | 2010-06-09 | $7700.00 | Window Closed / Lapsed |