US5523760A
Expired / Lapsed
US
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Ultra-wideband receiver
Assignee: University of California
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Filing: 1994-09-06
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Granted: 1996-06-04
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Expires: 2014-09-06
Abstract
Abstract An ultra-wideband (UWB) receiver utilizes a strobed input line with a sampler connected to an amplifier. In a differential configuration, ±UWB inputs are connected to separate antennas or to two halves of a dipole antenna. The two input lines include samplers which are commonly strobed by a gating pulse with a very low duty cycle. In a single ended configuration, only a single strobed input line and sampler is utilized. The samplers integrate, or average, up to 10,000 pulses to achieve high sensitivity and good rejection of uncorrelated signals.
Inventors
- 👤 Thomas E. McEwan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:45
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/74; H03K17/76; G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/284; G01S; G01S13/00; G01S13/003; G01S13/02; G01S13/0209; G01S13/0218; G01S13/04; G01S13/06; G01S13/08; G01S13/10; G01S13/18; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01V; G01V3/00; G01V3/12; G08; G08G; G08G1/00; G08G1/01; G08G1/04; H04; H04B; H04B1/00; H04B1/69; H04B1/7163; H04B1/71637; G01S13/103; G01S13/106; G01S13/88; G01S13/885; G01S13/93; G01S13/931; G01S2013/9314; G01S2013/9321; G01S5/00; G01S5/02; G01S5/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
34 words
A single ended ultra-wideband (UWB) receiver, comprising: a self-regulating amplifier which maintains a predetermined average output voltage; an input channel connected to one input of the amplifier; strobing means connected to the input channel.
Claim 2
Dependent Claim
34 words
A single ended ultra-wideband (UWB) receiver, comprising: a self-regulating amplifier which maintains a predetermined average output voltage; an input channel connected to one input of the amplifier; strobing means connected to the input channel.
Claim 3
Dependent Claim
31 words
The UWB receiver of claim 1, further comprising: a single Schottky detector diode in the input channel, wherein the strobing means is connected to the input channel before the detector diode.
Claim 4
Dependent Claim
31 words
The UWB receiver of claim 1, further comprising: a pair of series connected Schottky detector diodes in the input channel, wherein the strobing means is connected between the pair of diodes.
Claim 5
Dependent Claim
16 words
The UWB receiver of claim 3, wherein the Schottky diodes are in a common cathode configuration.
Claim 6
Dependent Claim
20 words
The UWB receiver of claim 2, wherein the self-regulating amplifier maintains an average of zero volts across the Schottky diode.
Claim 7
Dependent Claim
22 words
The UWB receiver of claim 4, wherein the self-regulating amplifier maintains an average of zero volts across the pair of Schottky diodes.
Claim 8
Dependent Claim
36 words
The UWB receiver of claim 1, wherein the self-regulating amplifier comprises: a first operational amplifier connected as a high gain amplifier, a second operational amplifier connected as an integrator in feedback across the first operational amplifier.
Claim 9
Dependent Claim
51 words
The UWB receiver of claim 7, wherein the second operational amplifier has a reference input and a second input connected to the output of the first operational amplifier to maintain the output of the first operational amplifier at a reference voltage set at the reference input of the second operational amplifier.
Claim 10
Dependent Claim
12 words
The UWB receiver of claim 8, wherein the reference voltage is zero.
Claim 11
Dependent Claim
23 words
The UWB receiver of claim 1 wherein the strobing means comprises a CMOS inverter driving a bipolar transistor through a pulse forming network.
Claim 12
Dependent Claim
23 words
The UWB receiver of claim 1, wherein the strobing means comprises a CMOS inverter driving a step recovery diode through a bias network.
Claim 13
Dependent Claim
22 words
The UWB receiver of claim 1, wherein the strobing means comprises a CMOS inverter driving an oscillator through a pulse forming network.
Claim 14
Dependent Claim
13 words
The UWB receiver of claim 12, wherein the oscillator is a Colpitts oscillator.
Claim 15
Dependent Claim
19 words
The UWB receiver of claim 12, wherein the pulse forming network produces a modulating envelope for the oscillator output.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-04 | 1999-12-04 | 2000-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-04 | 2003-12-04 | 2004-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-04 | 2007-12-04 | 2008-06-04 | $7700.00 | Window Closed / Lapsed |