GB1321493A - Electromagnetic resonators - Google Patents

Electromagnetic resonators

Info

Publication number
GB1321493A
GB1321493A GB3155971A GB3155971A GB1321493A GB 1321493 A GB1321493 A GB 1321493A GB 3155971 A GB3155971 A GB 3155971A GB 3155971 A GB3155971 A GB 3155971A GB 1321493 A GB1321493 A GB 1321493A
Authority
GB
United Kingdom
Prior art keywords
layer
dielectric
resonator
thermal coefficient
constant
Prior art date
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
GB3155971A
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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.)
Filing date
Publication date
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of GB1321493A publication Critical patent/GB1321493A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/08—Strip line resonators
    • H01P7/084—Triplate line resonators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/032—Constructional details for solid-state radar subsystems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/46—Indirect determination of position data
    • G01S2013/466—Indirect determination of position data by Trilateration, i.e. two antennas or two sensors determine separately the distance to a target, whereby with the knowledge of the baseline length, i.e. the distance between the antennas or sensors, the position data of the target is determined

Abstract

1321493 Resonators HEWLETT-PACKARD CO 6 July 1971 [5 Aug 1970] 31559/71 Heading H1W [Also in Division H4] A resonator comprises two dielectric layers, one of which has a dielectric-constant thermal coefficient less than, or of opposite polarity to, that of the other. The resonator is bounded by metallic layers having a thermal coefficient of expansion greater than that of the dielectric layers. As shown, a resonator comprises a layer 14 of quartz and a layer 18 of air formed by a circular recess 17 in a conductive block 16 (air has substantially zero dielectric-constant coefficient). The resonator is bounded by the bottom of the recess and a gold electrode 12 deposited on the quartz layer 14. Input and output strip lines 22 are provided. In a modification (Fig. 2), the second layer 18 lies on the opposite side of the electrode 12 to the first layer 14 and is made of a material having a dielectric-constant thermal coefficient of opposite polarity to that of layer 14.
GB3155971A 1970-08-05 1971-07-06 Electromagnetic resonators Expired GB1321493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6122570A 1970-08-05 1970-08-05

Publications (1)

Publication Number Publication Date
GB1321493A true GB1321493A (en) 1973-06-27

Family

ID=22034442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3155971A Expired GB1321493A (en) 1970-08-05 1971-07-06 Electromagnetic resonators

Country Status (5)

Country Link
US (1) US3633104A (en)
JP (1) JPS5316660B1 (en)
DE (1) DE2135566B2 (en)
FR (1) FR2101239B1 (en)
GB (1) GB1321493A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222315A (en) * 1988-08-24 1990-02-28 Murata Manufacturing Co Dielectric resonator

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038500B1 (en) * 1970-11-26 1975-12-10
US4661790A (en) * 1983-12-19 1987-04-28 Motorola, Inc. Radio frequency filter having a temperature compensated ceramic resonator
JPS6152064U (en) * 1984-09-11 1986-04-08
US4667172A (en) * 1986-04-07 1987-05-19 Motorola, Inc. Ceramic transmitter combiner with variable electrical length tuning stub and coupling loop interface
US4646038A (en) * 1986-04-07 1987-02-24 Motorola, Inc. Ceramic resonator filter with electromagnetic shielding
JPH0341802A (en) * 1989-07-07 1991-02-22 Ngk Spark Plug Co Ltd Temperature compensation type microwave strip line filter
DE69122748T2 (en) * 1990-12-26 1997-05-07 Tdk Corp HIGH FREQUENCY DEVICE
WO1997045889A2 (en) * 1996-05-31 1997-12-04 Get Technology, Inc. Improved transmission line
FR3119582B1 (en) 2021-02-10 2022-12-23 Psa Automobiles Sa Bodywork element comprising an electrical current dissipation surface.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE67921C (en) * H. EHRHARDT in Düsseldorf Process for punching and simultaneously shaping iron and steel blocks in a heated state
US3034078A (en) * 1959-06-29 1962-05-08 Nat Company Inc Temperature compensated microwave cavity
GB1141410A (en) * 1967-01-25 1969-01-29 Marconi Co Ltd Improvements in or relating to pulsed doppler radar systems
US3544920A (en) * 1967-04-27 1970-12-01 Broadcasting Corp Wide frequency band circulator
US3504303A (en) * 1967-05-04 1970-03-31 Japan Broadcasting Corp Reentrant cavity type circulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222315A (en) * 1988-08-24 1990-02-28 Murata Manufacturing Co Dielectric resonator
US5059929A (en) * 1988-08-24 1991-10-22 Murata Mfg., Co. Ltd. Dielectric resonator
GB2222315B (en) * 1988-08-24 1993-04-07 Murata Manufacturing Co Dielectric resonator

Also Published As

Publication number Publication date
DE2135566B2 (en) 1972-11-23
FR2101239A1 (en) 1972-03-31
JPS5316660B1 (en) 1978-06-02
US3633104A (en) 1972-01-04
DE2135566A1 (en) 1972-02-10
FR2101239B1 (en) 1976-12-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees