GB725386A - Improvements in or relating to aerials - Google Patents
Improvements in or relating to aerialsInfo
- Publication number
- GB725386A GB725386A GB14266/53A GB1426653A GB725386A GB 725386 A GB725386 A GB 725386A GB 14266/53 A GB14266/53 A GB 14266/53A GB 1426653 A GB1426653 A GB 1426653A GB 725386 A GB725386 A GB 725386A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slots
- unit
- elements
- units
- aerial
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
Abstract
725,386. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. May 21; 1953 [May 21, 1952], No. 14266/53. Class 40(7). A slotted aerial system comprises two aerial units arranged end-to-end about a common axis and designed for operation at different frequencies, the unit designed for operation at the higher frequency having a larger number of slots than the other. The two units preferably comprise tubular conductors, in which the slots are cut, arranged one above the other. The tubular conductors may be of the same transverse dimensions or the upper one may be the smaller. Equal transverse dimensions of the units can be obtained when the numbers of slots in the units are approximately in the same ratio as the frequencies and such dimensions should be sufficiently large to permit an engineer to ascend inside the system. Fig. 3 shows an embodiment with one aerial unit comprising 6 elements 1 having two diametrically opposed slots, a non-radiating spacer unit, and a unit operating at a higher frequency consisting of 8 elements, 2 each with 4 slots. The elements are rigidly attached to each other and to the top of a mast 5. Stays 6 and 7 may be provided. For omnidirectional operation the elements in each unit may be staggered circumferentially.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE725386X | 1952-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB725386A true GB725386A (en) | 1955-03-02 |
Family
ID=6634948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14266/53A Expired GB725386A (en) | 1952-05-21 | 1953-05-21 | Improvements in or relating to aerials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB725386A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3100300A (en) * | 1956-10-10 | 1963-08-06 | Carlyle J Sletten | Antenna array synthesis method |
| US3137001A (en) * | 1959-08-25 | 1964-06-09 | Decca Ltd | Slotted waveguide array with parabolic reflectors and lobe switching |
| US3164834A (en) * | 1960-11-25 | 1965-01-05 | Rca Corp | Waveguide tower with stacked slot radiators |
| US4186396A (en) * | 1978-04-18 | 1980-01-29 | Mitsubishi Denki Kabushiki Kaisha | Radar beacon apparatus |
-
1953
- 1953-05-21 GB GB14266/53A patent/GB725386A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3100300A (en) * | 1956-10-10 | 1963-08-06 | Carlyle J Sletten | Antenna array synthesis method |
| US3137001A (en) * | 1959-08-25 | 1964-06-09 | Decca Ltd | Slotted waveguide array with parabolic reflectors and lobe switching |
| US3164834A (en) * | 1960-11-25 | 1965-01-05 | Rca Corp | Waveguide tower with stacked slot radiators |
| US4186396A (en) * | 1978-04-18 | 1980-01-29 | Mitsubishi Denki Kabushiki Kaisha | Radar beacon apparatus |
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