GB803626A - Improvements relating to thermistor mounts - Google Patents

Improvements relating to thermistor mounts

Info

Publication number
GB803626A
GB803626A GB22439/56A GB2243956A GB803626A GB 803626 A GB803626 A GB 803626A GB 22439/56 A GB22439/56 A GB 22439/56A GB 2243956 A GB2243956 A GB 2243956A GB 803626 A GB803626 A GB 803626A
Authority
GB
United Kingdom
Prior art keywords
thermistor
impedance
waveguide
bead
section
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
GB22439/56A
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.)
POLYTECHNIC RES AND DEV CO Inc
Original Assignee
POLYTECHNIC RES AND DEV CO 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.)
Filing date
Publication date
Application filed by POLYTECHNIC RES AND DEV CO Inc filed Critical POLYTECHNIC RES AND DEV CO Inc
Publication of GB803626A publication Critical patent/GB803626A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
    • H01P5/103—Hollow-waveguide/coaxial-line transitions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Reversible Transmitting Devices (AREA)

Abstract

803,626. Impedance matching. POLYTECHNIC RESEARCH & DEVELOPMENT CO., Inc. July 19, 1956 [Oct. 25, 1955], No. 22439/56. Class 40 (8). A thermistor bead 1 is mounted in a section of ridged rectangular waveguide 2 between the ridge 7 and the opposite broad wall of the waveguide. This enables the connecting leads to be kept short so that the thermistor presents a substantially resistive impedance. The ridge 7 has a uniform width of about one-fifth of the broad dimension of the guide and is provided with quarter-wavelength steps 7a, 7b, 7c, 7d designed. to provide constant characteristic impedance at the input over the frequency band utilized. The end of the waveguide is shortcircuited by a plate 8 and the length of the end section 7f is chosen so that an open circuit is seen by the thermistor bead. The height of the ridge in section 7f is designed so that the impedance of this section is three times the impedance of the ridged waveguide. The thermistor output lead is connected to the inner conductor of a coaxial line 4. A conductive bead 6a and dielectric washer 6b provide a path to earth for microwave energy. Alternatively, the output terminal of the bead may be connected to the central conductor of the connector 4 through a half-wavelength stub line.
GB22439/56A 1955-10-25 1956-07-19 Improvements relating to thermistor mounts Expired GB803626A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US803626XA 1955-10-25 1955-10-25

Publications (1)

Publication Number Publication Date
GB803626A true GB803626A (en) 1958-10-29

Family

ID=22156889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22439/56A Expired GB803626A (en) 1955-10-25 1956-07-19 Improvements relating to thermistor mounts

Country Status (1)

Country Link
GB (1) GB803626A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605147A1 (en) * 1986-10-10 1988-04-15 Thomson Csf METHOD FOR CARRYING OUT A HYPERFREQUENCY TRANSITION BETWEEN TWO ORTHOGONAL GUIDED STRUCTURES AND A HYPERFREQUENCY CIRCUIT COMPRISING SUCH A TRANSITION
EP0518218A1 (en) * 1991-06-11 1992-12-16 Siemens Aktiengesellschaft Microwave coupler-polariser
CN111430867A (en) * 2020-05-18 2020-07-17 电子科技大学 Ridge waveguide-to-coaxial transition structure
CN114142200A (en) * 2021-10-29 2022-03-04 西安空间无线电技术研究所 High-performance full-band vertical outlet waveguide coaxial converter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605147A1 (en) * 1986-10-10 1988-04-15 Thomson Csf METHOD FOR CARRYING OUT A HYPERFREQUENCY TRANSITION BETWEEN TWO ORTHOGONAL GUIDED STRUCTURES AND A HYPERFREQUENCY CIRCUIT COMPRISING SUCH A TRANSITION
EP0319629A1 (en) * 1986-10-10 1989-06-14 Thomson-Csf Method of effectuating a microwave transition between two orthogonal guiding structures, und microwave circuit using it
US4887346A (en) * 1986-10-10 1989-12-19 Thomson-Csf Method for making an ultra-high frequency transition between two orthogal guided structures and ultra-high frequency device with a transition of this type
EP0518218A1 (en) * 1991-06-11 1992-12-16 Siemens Aktiengesellschaft Microwave coupler-polariser
CN111430867A (en) * 2020-05-18 2020-07-17 电子科技大学 Ridge waveguide-to-coaxial transition structure
CN111430867B (en) * 2020-05-18 2021-07-02 电子科技大学 Ridge waveguide-to-coaxial transition structure
CN114142200A (en) * 2021-10-29 2022-03-04 西安空间无线电技术研究所 High-performance full-band vertical outlet waveguide coaxial converter

Similar Documents

Publication Publication Date Title
GB619554A (en) Improvements in wave guides
GB767612A (en) Microwave transducer
GB761780A (en) Microwave transducers for coupling microwave energy between waveguides
GB803626A (en) Improvements relating to thermistor mounts
GB592402A (en) Improvements in apparatus for amplifying, generating, or changing the frequency of electric oscillations of ultra-high frequency
US2605399A (en) Ultrahigh frequency mixer
GB821150A (en) Improvements in or relating to waveguide-to-coaxial line transformers
US2982927A (en) Transition device
US2933705A (en) Thermistor mounts
GB865474A (en) Improvements in and relating to radio frequency coupling devices
US2873430A (en) Electric field probe
US2973486A (en) Microwave hybrid junctions
JPS5646301A (en) Microwave diode device
GB929980A (en) A parametric amplifier
JPS56714A (en) Microstrip antenna of broad band
JPS55147011A (en) Microwave amplifier
GB827021A (en) Improvements in or relating to variable impedance transmission lines
US2820204A (en) Broadband magic t
GB901905A (en) Parametric amplifier
GB839219A (en) Waveguide mixer circuit for microwaves
GB934912A (en) Improvements in or relating to co-axial cable-waveguide coupling transitions
GB1285652A (en) Improvements in or relating to waveguide isolators
US3158811A (en) Orthogonal mode waveguide balanced mixer containing a dumbbell-shaped iris and attenuator strip
Carlson A Broadband Microstrip Crystal Mixer with Integral DC Return
GB843341A (en) Improvements in or relating to electric filter circuits