US3838363A - Planar phase shifter for use in the microwave range - Google Patents

Planar phase shifter for use in the microwave range Download PDF

Info

Publication number
US3838363A
US3838363A US00364521A US36452173A US3838363A US 3838363 A US3838363 A US 3838363A US 00364521 A US00364521 A US 00364521A US 36452173 A US36452173 A US 36452173A US 3838363 A US3838363 A US 3838363A
Authority
US
United States
Prior art keywords
phase shifter
microwave
gyromagnetic
planar phase
microstrip line
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 - Lifetime
Application number
US00364521A
Other languages
English (en)
Inventor
W Schilz
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.)
US Philips Corp
Original Assignee
US Philips Corp
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
Priority claimed from DE19722229668 external-priority patent/DE2229668C3/de
Application filed by US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3838363A publication Critical patent/US3838363A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/19—Phase-shifters using a ferromagnetic device
    • H01P1/195—Phase-shifters using a ferromagnetic device having a toroidal shape

Definitions

  • the invention relates to a planar phase shifter comprising a meander-like microstrip line which is provided according to the microstrip technique on a substrate, and also comprising a gyromagnetic body.
  • Phase shifters of this kind which can be controlled continuously (analog) phase shifters or digitally are often used in the microstrip technique.
  • analog phase shifters In particular for the construction of phased aerial arrays, in which the bundled microwave beam is electrically deflected, a large number of phase shifters is required.
  • Some of the essential apsects for the usability of the phase shifters in such systems are small dimensions and low losses.
  • a phase shifter of this kind is known from US. Pat. No. 3,418,605.
  • the meander line can be provided on a gyromagnetic substrate as well as on a nonmagnetic substrate.
  • the ferrite is provided on the side of the meander line which is remote from the substrate.
  • a microwave is applied to the meander line, a circularly polarized high-frequency field is generated by the coupling of fields of adjoining line segments, the said circularly polarized field being used for the realization of given phase shifts.
  • the microwave is coupled by the circular field to the gyromagnetic material which, for example, is used as the substrate, the said gyromagnetic material being prepolarized by an adjustable static magnetic field.
  • the effective permeability u of the material is dependent of the strength of the static magnetization of the substrate and of the direction of this magnetization with respect to the direction of propagation of the microwave.
  • a continuous phase shift analog phase shifter
  • a discontinuous phase shift latching phase shifter
  • the invention has for its object to provide a substantial reduction of the attenuation of such a phase shifter.
  • the phase shifter according to the invention is characterized in that the gyromagnetic body and the microstrip line are arranged at some distance from each other.
  • FIG. 1 is a perspective view of an embodiment of a phase shifter according to the invention
  • FIG. 2 is a cross-sectional view of an embodiment of a phase shifter according to the invention.
  • FIGv 3 shows the attenuation as a function of the distance between the meander line and the gyromagnetic body of the embodiment shown in FIG. 2, and
  • FIG. 4 shows the differential phase shift as a function of the distance between the meander line and the gyromagnetic body of the embodiment shown in FIG. 2.
  • a meander l (microstrip) is provided on a non-magnetic substrate 2 above which ferrite cores or blocks 3, used as the gyromagnetic material, are arranged.
  • ferrite cores or blocks 3 used as the gyromagnetic material
  • the attenuation a is plotted in dB as a function of the thickness of the Teflon layer 4, and in FIG. 4 the differential phase shift Ad) is plotted in degrees as a function of the thickness of the Teflon layer for the phase shifter shown in FIG. 2.
  • a substantial reduction of the attenuation a is obtained with a thickness of 0.05 mm of the Teflon layer, without the differential phase shift being significantly affected.
  • phase shift of the individual cores can be adapted by a slight modification of the position of the ferrite cores 3 with respect to the meander line 1 and- /or by changing the distance between them.
  • a non-magnetic ferrite such as for example ZnF O is advantageously used as the substrate, and a Mg-Mn ferrite is advantageously used for the switching cores 3.
  • a planar phase shifter for use in the microwave range, comprising a non-magnetic substrate, a meander-like microstrip line arranged on said substrate, at least one gyromagnetic body having a plane parallel to said microstrip line, said body being magnetizable by a static magnetic field to provide a coupling with very high frequency magnetic fields resulting in the microstrip line meanders when a microwave is applied thereto, and spacing means of non-magnetic insulating material for supporting said body at a distance from said microstrip line to reduce the attenuation of the microwave due to losses in the gyromagnetic body.

Landscapes

  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Soft Magnetic Materials (AREA)
US00364521A 1972-06-19 1973-05-29 Planar phase shifter for use in the microwave range Expired - Lifetime US3838363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722229668 DE2229668C3 (de) 1972-06-19 Planarer Ferritphasenschieber mit mäanderförmigem Wellenleiter in Mikrostreifenleitertechnik

Publications (1)

Publication Number Publication Date
US3838363A true US3838363A (en) 1974-09-24

Family

ID=5848043

Family Applications (1)

Application Number Title Priority Date Filing Date
US00364521A Expired - Lifetime US3838363A (en) 1972-06-19 1973-05-29 Planar phase shifter for use in the microwave range

Country Status (5)

Country Link
US (1) US3838363A (de)
JP (1) JPS4958728A (de)
FR (1) FR2189884B1 (de)
GB (1) GB1382208A (de)
NL (1) NL7308320A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187480A (en) * 1977-03-31 1980-02-05 Hazeltine Corporation Microstrip network having phase adjustment
US5075648A (en) * 1989-03-30 1991-12-24 Electromagnetic Sciences, Inc. Hybrid mode rf phase shifter and variable power divider using the same
US5170138A (en) * 1989-03-30 1992-12-08 Electromagnetic Sciences, Inc. Single toroid hybrid mode RF phase shifter
US5448208A (en) * 1993-07-15 1995-09-05 Nec Corporation Semiconductor integrated circuit having an equal propagation delay
US5892412A (en) * 1997-02-20 1999-04-06 Lucent Technologies Inc. Method of and an apparatus for tunable passive-gain equalization
US8847702B2 (en) 2011-09-26 2014-09-30 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Stub array microstrip line phase shifter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447143A (en) * 1966-06-30 1969-05-27 Research Corp Reciprocal ferrite phase shifters and memory system utilizing same
US3448410A (en) * 1967-05-25 1969-06-03 Sperry Rand Corp Broadband reciprocal dual meander line ferrite phase shifter
US3585536A (en) * 1970-02-16 1971-06-15 Westinghouse Electric Corp Reciprocal,microstrip,latched,ferrite phase shifter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078425A (en) * 1956-07-12 1963-02-19 Sperry Rand Corp Non-reciprocal tm mode transducer
US3393383A (en) * 1966-09-30 1968-07-16 Lignes Telegraph Telephon Electrically controlled surface waveguide phase shifter
US3539950A (en) * 1969-07-23 1970-11-10 Us Army Microstrip reciprocal latching ferrite phase shifter
US3623149A (en) * 1970-06-12 1971-11-23 Bell Telephone Labor Inc Reciprocal latching ferrite waveguide phase shifter having waveguide stubs energized in phase quadrature

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447143A (en) * 1966-06-30 1969-05-27 Research Corp Reciprocal ferrite phase shifters and memory system utilizing same
US3448410A (en) * 1967-05-25 1969-06-03 Sperry Rand Corp Broadband reciprocal dual meander line ferrite phase shifter
US3585536A (en) * 1970-02-16 1971-06-15 Westinghouse Electric Corp Reciprocal,microstrip,latched,ferrite phase shifter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187480A (en) * 1977-03-31 1980-02-05 Hazeltine Corporation Microstrip network having phase adjustment
US5075648A (en) * 1989-03-30 1991-12-24 Electromagnetic Sciences, Inc. Hybrid mode rf phase shifter and variable power divider using the same
US5170138A (en) * 1989-03-30 1992-12-08 Electromagnetic Sciences, Inc. Single toroid hybrid mode RF phase shifter
US5448208A (en) * 1993-07-15 1995-09-05 Nec Corporation Semiconductor integrated circuit having an equal propagation delay
US5892412A (en) * 1997-02-20 1999-04-06 Lucent Technologies Inc. Method of and an apparatus for tunable passive-gain equalization
US8847702B2 (en) 2011-09-26 2014-09-30 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Stub array microstrip line phase shifter

Also Published As

Publication number Publication date
GB1382208A (en) 1975-01-29
NL7308320A (de) 1973-12-21
JPS4958728A (de) 1974-06-07
FR2189884B1 (de) 1978-02-10
DE2229668A1 (de) 1974-01-17
FR2189884A1 (de) 1974-01-25
DE2229668B2 (de) 1976-09-23

Similar Documents

Publication Publication Date Title
US3277401A (en) Multi-stable phase shifters for microwaves employing a plurality of high remanent magnetization materials
US3602845A (en) Slot line nonreciprocal phase shifter
US3560893A (en) Surface strip transmission line and microwave devices using same
US3369242A (en) Inertialess electromagnetic wave scanner
US3205501A (en) Closely spaced stocked waveguide antenna array employing reciprocal ridged wageguide phase shifters
US3456213A (en) Single ground plane junction circulator having dielectric substrate
US3539950A (en) Microstrip reciprocal latching ferrite phase shifter
RU2594382C1 (ru) Регулируемая свч линия задержки на поверхностных магнитостатических волнах
US3653054A (en) Symmetrical trough waveguide antenna array
US3838363A (en) Planar phase shifter for use in the microwave range
US3698008A (en) Latchable, polarization-agile reciprocal phase shifter
GB2131628A (en) Magnetically tuned resonant circuit
US2849687A (en) Non-reciprocal wave transmission
US3101458A (en) Ferrite phase shifter having casing-supported thin-foil waveguide, with magnetising pole pieces penetrating the casing
US3566311A (en) Reciprocal ferrite film phase shifter having latching conductor film
US3517340A (en) Circulator having conductive post capacitively coupled between first and second transmission line conductors for broadbanding purposes
US3310807A (en) Apparatus for effecting the transmission of electromagnetic energy through a dense plasma
US3072869A (en) Reciprocal gyromagnetic loss device
US3422375A (en) Microwave power dividing network
US20020039054A1 (en) Confined-flux ferrite structure for circulator/isolator
US2922964A (en) Nonreciprocal wave transmission
US3078425A (en) Non-reciprocal tm mode transducer
US2892161A (en) Nonreciprocal circuit element
US3200353A (en) Microwave structure utilizing ferrite coupling means
US2892160A (en) Nonreciprocal circuit element