GB1353801A - Creation of Inventions and Patents with Artificial Intelligence

GB1353801A – Frequency dispersive delay devices
– Google Patents

GB1353801A – Frequency dispersive delay devices
– Google Patents
Frequency dispersive delay devices

Info

Publication number
GB1353801A

GB1353801A
GB3686971A
GB3686971A
GB1353801A
GB 1353801 A
GB1353801 A
GB 1353801A
GB 3686971 A
GB3686971 A
GB 3686971A
GB 3686971 A
GB3686971 A
GB 3686971A
GB 1353801 A
GB1353801 A
GB 1353801A
Authority
GB
United Kingdom
Prior art keywords
frequency
pulse
arrays
transducer
electrodes
Prior art date
1970-08-26
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB3686971A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Texas Instruments Inc

Original Assignee
Texas Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1970-08-26
Filing date
1971-08-05
Publication date
1974-05-22

1971-08-05
Application filed by Texas Instruments Inc
filed
Critical
Texas Instruments Inc

1974-05-22
Publication of GB1353801A
publication
Critical
patent/GB1353801A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

238000003491
array
Methods

0.000
abstract
7

XLOMVQKBTHCTTD-UHFFFAOYSA-N
Zinc monoxide
Chemical compound

[Zn]=O
XLOMVQKBTHCTTD-UHFFFAOYSA-N
0.000
abstract
2

230000001934
delay
Effects

0.000
abstract
2

239000000758
substrate
Substances

0.000
abstract
2

CJOBVZJTOIVNNF-UHFFFAOYSA-N
cadmium sulfide
Chemical compound

[Cd]=S
CJOBVZJTOIVNNF-UHFFFAOYSA-N
0.000
abstract
1

229910052980
cadmium sulfide
Inorganic materials

0.000
abstract
1

230000003247
decreasing effect
Effects

0.000
abstract
1

238000005530
etching
Methods

0.000
abstract
1

229910052737
gold
Inorganic materials

0.000
abstract
1

238000009434
installation
Methods

0.000
abstract
1

GQYHUHYESMUTHG-UHFFFAOYSA-N
lithium niobate
Chemical compound

[Li+].[O-][Nb](=O)=O
GQYHUHYESMUTHG-UHFFFAOYSA-N
0.000
abstract
1

238000001465
metallisation
Methods

0.000
abstract
1

238000000034
method
Methods

0.000
abstract
1

229920002120
photoresistant polymer
Polymers

0.000
abstract
1

239000010453
quartz
Substances

0.000
abstract
1

230000002441
reversible effect
Effects

0.000
abstract
1

VYPSYNLAJGMNEJ-UHFFFAOYSA-N
silicon dioxide
Inorganic materials

O=[Si]=O
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
0.000
abstract
1

239000011787
zinc oxide
Substances

0.000
abstract
1

Classifications

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators

H03H9/30—Time-delay networks

H03H9/42—Time-delay networks using surface acoustic waves

H03H9/44—Frequency dependent delay lines, e.g. dispersive delay lines

Abstract

1353801 Dispersive delay lines; pulse radar TEXAS INSTRUMENTS Inc 5 Aug 1971 [26 Aug 1970] 36869/71 Headings H3U and H4D A pulse, comprising a waveform which sweeps linearly or otherwise from a minimum to a maximum frequency or vice-versa as it is produced, Fig. 2 (not shown), and which may also be shaped in amplitude, or divided up into further sub-pulses during the frequency sweep, is applied to a frequency dispersive acoustic surface wave delay device which delays the pulse by at least its duration and compresses its time duration, Fig. 3 (not shown). As shown in Fig. 1 a single crystalline prize substrate 14, of lithium niobate, quartz, zinc oxide or cadmium sulphide supports broadband input transducers 15, 19, 23 and output transducers 17, 21, 25, which may be uni- or bi-directional, belonging to respective sections 10, 11, 12, series connected. Frequency dispersive arrays 16, 20, 24 have interdigitated electrodes so spaced that, at the instant when the initial low frequency portion of the pulse provided by source 46 reaches electrodes 49, 51 of array 24, the last, high frequency pulse portion has just reached electrodes 36, 37 of array 24, and the electrode spacing throughout the arrays 16, 20, 24 is matched to the instantaneous wavelength of the surface waves passing, being one half the corresponding instantaneous wavelength, so that a high amplitude spike (32), Fig. 3 (not shown), appears at the delay device output A, A1 connected to the three arrays 16, 20, 24 in parallel. Alternatively, a pulse of decreasing frequency sweep may be applied to transducer 25. Fig. 4 (not shown) displays the frequency delay characteristic, the discontinuities occurring at frequencies matched at the ends of the respective arrays. The pulse may comprise three subpulses separated by the transit time of regions B, to avoid consequent loss of signal. In Fig. 7, the substrate 14 supports frequency dispersive arrays 87, 88, 89; 90, 91, 92 each of which has electrode spacings corresponding to the entire frequency range of the input pulse. The initial lowest frequency pulse portion, emitted from the left hand end of transducer 87 reaches the right hand end of transducer 93 where the electrode spacing is adapted to detect it, at the same time as the highest frequency arrives at the left hand end of the transducer, having traversed the distance from the adjacent end of transducer 87. Subsequent transducers provide two further delays of identical characteristics, as displayed in Fig. 6 (not shown). In Fig. 5 (not shown), the left hand transducer of each section corresponding to those of Fig. 7 is a broadband interdigital transducer (60, 62, 64) at the expense of higher input impedance. To avoid excessive ripples as the number of cascaded frequency dispersive arrays is increased, Fig. 8 (not shown), such arrays may have electrodes whose width and overlap are varied (119-122), Fig. 9 (not shown), in accordance with Fourier Transform design techniques, which are applicable to all embodiments. All devices are reversible. The electrodes are Al or Au formed by metallization and etching using a photoresist. The device is used in a radar installation.

GB3686971A
1970-08-26
1971-08-05
Frequency dispersive delay devices

Expired

GB1353801A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US6701770A

1970-08-26
1970-08-26

Publications (1)

Publication Number
Publication Date

GB1353801A
true

GB1353801A
(en)

1974-05-22

Family
ID=22073190
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3686971A
Expired

GB1353801A
(en)

1970-08-26
1971-08-05
Frequency dispersive delay devices

Country Status (3)

Country
Link

US
(1)

US3675163A
(en)

DE
(1)

DE2142040A1
(en)

GB
(1)

GB1353801A
(en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3723916A
(en)

1971-10-01
1973-03-27
Us Navy
Surface wave multiplex transducer device with gain and side lobe suppression

US3753166A
(en)

1971-12-06
1973-08-14
Sperry Rand Corp
Surface wave bandpass filter with non-linear fm input and output transducers and design method therefor

US3770949A
(en)

1972-04-21
1973-11-06
Us Navy
Acoustic surface wave correlators and convolvers

US3790828A
(en)

1972-06-23
1974-02-05
Us Navy
Electroacoustic surface acoustic wave beam deflector

US3800248A
(en)

1972-10-31
1974-03-26
Us Navy
Unidirectional surface wave transducer device

US3845420A
(en)

1973-03-02
1974-10-29
Raytheon Co
Surface acoustic wave phase control device

US3903406A
(en)

1973-10-09
1975-09-02
Motorola Inc
Acoustic wave correlator control circuitry

US3875517A
(en)

1973-11-26
1975-04-01
Us Navy
Tracking phase detector for surface wave correlators

US3959748A
(en)

1973-12-26
1976-05-25
Zenith Radio Corporation
Dual sidestepping SWIF and method

US3942135A
(en)

1974-06-12
1976-03-02
Mcdonnell Douglas Corporation
Concatenated surface wave delay line correlator

FR2280251A1
(en)

1974-07-24
1976-02-20
Thomson Csf

SURFACE ELASTIC WAVE FILTER CONTAINING AN ANTISYMETRIC STRUCTURE TRANSDUCER

US4006290A
(en)

1974-08-12
1977-02-01
Gte Sylvania Incorporated
Surface wave frequency selective device

JPS5931890B2
(en)

1976-12-08
1984-08-04
株式会社日立製作所

surface acoustic wave filter

US5084687A
(en)

1979-12-03
1992-01-28
Westinghouse Electric Corp.
Surface acoustic wave encoder/decoder

DE3209948A1
(en)

1982-03-18
1983-09-22
Siemens AG, 1000 Berlin und 8000 München
Improvement on a pulse compression filter in the manner of a dispersive delay line

DE3121516A1
(en)

1981-05-29
1983-01-05
Siemens AG, 1000 Berlin und 8000 München

PULSE COMPRESSION FILTER TYPE OF A DISPERSIVE DELAY LINE

DE3209962A1
(en)

1982-03-18
1983-09-29
Siemens AG, 1000 Berlin und 8000 München

ELECTRONIC COMPONENT WORKING WITH ACOUSTIC SHAFTS

US4506239A
(en)

1982-10-25
1985-03-19
Motorola, Inc.
Compound surface acoustic wave matched filters

GB2236637B
(en)

1989-08-16
1993-07-28
Clarion Co Ltd
Surface acoustic wave device

JPH04158617A
(en)

1990-10-23
1992-06-01
Clarion Co Ltd
Surface acoustic wave device

JP2847438B2
(en)

1991-03-29
1999-01-20
三井金属鉱業株式会社

Surface acoustic wave device

US5192956A
(en)

1991-11-13
1993-03-09
Westinghouse Electric Corp.
Cascaded complementary phase code compressor

JPH06188676A
(en)

1992-12-17
1994-07-08
Canon Inc
Correlator

WO1995010817A1
(en)

1993-10-08
1995-04-20
E.I. Du Pont De Nemours And Company
Acoustic frequency mixing devices using potassium titanyl phosphate and its analogs

US5710529A
(en)

1993-10-15
1998-01-20
Ngk Insulators, Ltd.
Surface acoustic wave filer device having a cascade filter structure and a piezoelectric substrate having mirror-polished surfaces

TWI248469B
(en)

2001-12-25
2006-02-01
Univ Nat Cheng Kung
Manufacturing method of zinc oxide nanowires

WO2010097710A1
(en)

2009-02-27
2010-09-02
Dalhousie University
High-frequency ultrasound imaging system

US10514441B2
(en)

2013-03-15
2019-12-24
Valentine Research, Inc.
High probability of intercept radar detector

US9658319B2
(en)

2013-03-15
2017-05-23
Valentine Research, Inc.
High probability of intercept radar detector

Family Cites Families (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3376572A
(en)

1966-09-15
1968-04-02
Rca Corp
Electroacoustic wave shaping device

US3568102A
(en)

1967-07-06
1971-03-02
Litton Precision Prod Inc
Split surface wave acoustic delay line

US3559115A
(en)

1968-02-28
1971-01-26
Zenith Radio Corp
Surface-wave filter reflection cancellation

US3548306A
(en)

1968-08-29
1970-12-15
Us Navy
Surface wave spectrum analyzer and interferometer

US3551837A
(en)

1969-08-13
1970-12-29
Us Navy
Surface wave transducers with side lobe suppression

1970

1970-08-26
US
US67017A
patent/US3675163A/en
not_active
Expired – Lifetime

1971

1971-08-05
GB
GB3686971A
patent/GB1353801A/en
not_active
Expired

1971-08-21
DE
DE19712142040
patent/DE2142040A1/en
active
Pending

Also Published As

Publication number
Publication date

US3675163A
(en)

1972-07-04

DE2142040A1
(en)

1972-03-02

Contact information