GB798534A - Improvements in or relating to balanced mixing arrangements for micro wave transmission - Google Patents
Improvements in or relating to balanced mixing arrangements for micro wave transmissionInfo
- Publication number
- GB798534A GB798534A GB35949/56A GB3594956A GB798534A GB 798534 A GB798534 A GB 798534A GB 35949/56 A GB35949/56 A GB 35949/56A GB 3594956 A GB3594956 A GB 3594956A GB 798534 A GB798534 A GB 798534A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mode
- wave
- waveguide
- rectifiers
- signal
- 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
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
- H03D9/06—Transference of modulation using distributed inductance and capacitance
- H03D9/0608—Transference of modulation using distributed inductance and capacitance by means of diodes
- H03D9/0616—Transference of modulation using distributed inductance and capacitance by means of diodes mounted in a hollow waveguide
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
798,534. Waveguides. TELEFONAKTIEBOLAGET L. M. ERICSSON. Nov. 23, 1956 [Dec. 23, 1955], No. 35949/56. Class 40 (8). [Also in Group XL (c)] A balanced microwave frequency-changer comprises a pair of rectifiers symmetrically disposed in a waveguide and fed with a symmetrical wave from the first source and a non- symmetrical wave from the second. In one embodiment two crystal rectifiers 11, 12, Fig. 1, are located side by side across a waveguide 10, to the end 21 of which is applied a signal wave of TE 10 mode : the guide is tuned by means of a screw 13. The wave is converted to the TD 20 mode by means of a plate 14 screening half the waveguide and the TE 10 mode is suppressed by means of a plate 15 arranged along the longitudinal axis. The other end of the waveguide is closed by a sliding plunger 16, and the local oscillator energy is introduced as a wave of TE 10 mode by means of a coaxial cable 17. An iris diaphragm 18 is interposed in the path to the rectifiers 11, 12 while the space between the plates 14, 18 is filled with a dielectric material. In a second embodiment, the rectifiers 11, 12, Fig. 2, are symmetrically located in a cavity 20 and fed with local oscillations 171 in TE 10 mode introduced by means of a coaxial cable 17. The signal wave is introduced in TE 10 mode 211 at a suitably dimensioned opening 21; the cavity 20, however, is dimensioned and the projecting portion # so adjusted-a movable piston may be provided-as to transform this wave to the TE 20 mode 212. In a further embodiment (Fig. 3, not shown) the oscillator energy is introduced into the waveguide via a single coaxial cable, while the signal is fed in at spaced points over a branched cable, the two branches of which differ in path length by half a wavelength at the signal frequency.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE798534X | 1955-12-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB798534A true GB798534A (en) | 1958-07-23 |
Family
ID=20339826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35949/56A Expired GB798534A (en) | 1955-12-23 | 1956-11-23 | Improvements in or relating to balanced mixing arrangements for micro wave transmission |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1165578A (en) |
GB (1) | GB798534A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1553066A (en) * | 1978-02-09 | 1979-09-19 | Philips Electronic Associated | Doppler radar device |
-
1956
- 1956-11-23 GB GB35949/56A patent/GB798534A/en not_active Expired
- 1956-11-30 FR FR1165578D patent/FR1165578A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1165578A (en) | 1958-10-27 |
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