GB986431A - A strip transmission line attenuator - Google Patents
A strip transmission line attenuatorInfo
- Publication number
- GB986431A GB986431A GB35333/61A GB3533361A GB986431A GB 986431 A GB986431 A GB 986431A GB 35333/61 A GB35333/61 A GB 35333/61A GB 3533361 A GB3533361 A GB 3533361A GB 986431 A GB986431 A GB 986431A
- Authority
- GB
- United Kingdom
- Prior art keywords
- portions
- resistive
- attenuator
- shunt
- dielectric
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/08—Microstrips; Strip lines
- H01P3/085—Triplate lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/22—Attenuating devices
- H01P1/227—Strip line attenuators
Landscapes
- Non-Reversible Transmitting Devices (AREA)
- Attenuators (AREA)
Abstract
986,431. Strip-line attenuators. SANDERS ASSOCIATES Inc. Sept. 29, 1961 [Nov. 17, 1960], No. 35333/61. Heading H1W. An adjustable T or # attenuator comprises relatively movable resistive and conductive sections of a strip transmission line. The line is of the type comprising two outer ground conductors and a central line conductor. In the T attenuator shown in Figs. 2, 3, the outer conductors are formed by a pair of recessed metal blocks 24, 26 and portions of the inner conductor are supported in sliding engagement with each other on the inner surfaces of dielectric blocks 32, 34. The inner conductor configuration comprises input and output conductive portions 18, 23, connected to coaxial terminals on the lower metal block, and a shunt resistive portion 21 conductively connected to this metal block, all these portions being mounted on the lower dielectric block 34. Series resistive portions 19, 22 and conductive bridge portion 20 are mounted upon the upper dielectric block 32, the arrangement being such that relative movement of the dielectric blocks causes the amount of shunt resistance 21 effectively in circuit to vary inversely with the amount of the series resistances 19, 22 effectively in circuit. The dielectric blocks are urged towards each other by a spring 48 made of dielectric material. In an alternative configuration for a # attenuator (Fig. 4) input and output conductive portions 50, 62, series resistive portions 52, 60 and shunt resistive portion 56 are all mounted on the lower dielectric block. A conductive bridging portion 64 is mounted on the upper dielectric block. In a modification of the # attenuator (Fig. 5A), a variable portion of a resistive element 82 mounted on the upper dielectric block is intercepted by conductors 66, 74. The # configuration comprises a central (series) portion 70 of element 82 and two outer (shunt) portions 68, 72.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69863A US3002165A (en) | 1960-11-17 | 1960-11-17 | Variable attenuator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB986431A true GB986431A (en) | 1965-03-17 |
Family
ID=22091675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35333/61A Expired GB986431A (en) | 1960-11-17 | 1961-09-29 | A strip transmission line attenuator |
Country Status (3)
Country | Link |
---|---|
US (1) | US3002165A (en) |
DE (1) | DE1165109B (en) |
GB (1) | GB986431A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3192493A (en) * | 1961-05-24 | 1965-06-29 | Radar Design Corp | Variable attenuator |
US3215958A (en) * | 1961-07-20 | 1965-11-02 | Harold B Isaacson | Adjustable microwave attenuator having broad-band frequency compensation |
US3140455A (en) * | 1962-06-07 | 1964-07-07 | Jr John A Geikler | Stripline variable power divider |
US3184694A (en) * | 1963-05-20 | 1965-05-18 | Weinschel Eng Co Inc | Precision variable coaxial attenuator |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2797390A (en) * | 1953-01-09 | 1957-06-25 | Itt | Microwave transmission lines |
US2810891A (en) * | 1954-03-03 | 1957-10-22 | Itt | Attenuators |
NL202260A (en) * | 1955-01-27 |
-
1960
- 1960-11-17 US US69863A patent/US3002165A/en not_active Expired - Lifetime
-
1961
- 1961-09-29 GB GB35333/61A patent/GB986431A/en not_active Expired
- 1961-11-04 DE DES76560A patent/DE1165109B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3002165A (en) | 1961-09-26 |
DE1165109B (en) | 1964-03-12 |
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