US1996804A - Antenna arrangement for the reception of short electrical waves - Google Patents
Antenna arrangement for the reception of short electrical waves Download PDFInfo
- Publication number
- US1996804A US1996804A US607913A US60791332A US1996804A US 1996804 A US1996804 A US 1996804A US 607913 A US607913 A US 607913A US 60791332 A US60791332 A US 60791332A US 1996804 A US1996804 A US 1996804A
- Authority
- US
- United States
- Prior art keywords
- reception
- antenna arrangement
- short electrical
- electrical waves
- antenna
- 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
Links
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/22—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of a single substantially straight conductive element
- H01Q19/24—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of a single substantially straight conductive element the primary active element being centre-fed and substantially straight, e.g. H-antenna
Definitions
- Directional antenna arrangements for the reception of short electromagnetic waves are known in the prior art which comprise an antenna and a reflector part.
- the compensator schemes used therefor are 1 0 greatly a function of the frequency, and they insure unilaterally directional reception only for a very definite wave-length.
- the means provided for regulating the phase and the amplitude are disposed directly at the antenna, whence the incoming currents are conducted to the receiver by way of an energy line.
- both the antenna as well as the reflector are provided each with an energy feed line (or downlead) so that amplitude and phase regulation for the antenna and the reflector current may be effected directly at the receiver.
- an energy feed line or downlead
- Figs. 1 and 2 show' 35 throughout the entire frequency band it is'recom mendable to terminate the two energy feed lines LA and LR by such ohmic resistances WA and We that no standing waves are likely to be produced upon the same.
- the arrangement is also useful for the simultaneous reception of several waves. All that is necessary for this purpose is to interpose non-reactive coupling units, or links between the energy- A fundamental case covering this scheme is shown in Fig. 2.
- Thermionic tubes are connected in parallel relation to the resistances WA and WR.
- any unsymmetric energy feed line or downlead has been assumed of which one conductor is earthed.
- symmetric energy lines it is necessary to provide symmetric push-pull circuit schemes.
- simultaneous reception of several waves is feasible also without the terminal resistances WA and We. Since antenna and refiector are equivalent it is possible to receive simultaneously from opposite directions, and it is immaterial in this connection whether the incoming waves are equal or dissimilar.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
A. GOTHE April 9, 1935' ANTENNA ARRANGEMENT FOR THE RECEPTION OF SHORT ELECTRICAL WAVES Filed April 28, 1952 INVENTOR ALBRECHT GO BY 1+2 z ATTORNEY Patented Apr. 9, 1935 PATENT OFFICE ANTENNA ARRAN FOR THE RECEP- TION OF SHORT ELECTRICAL WAVES Albrecht Gothe, Berlin, Germany, assignor to Telefunken Gesellschai't fiir Drahtlose Telegraphic in. b. 11., Berlin, Germany, a corporation oflGermany Application April as, 1932, Serial No. 607,913 In Germany April 28, 1931 1 Claim.
Directional antenna arrangements for the reception of short electromagnetic waves are known in the prior art which comprise an antenna and a reflector part. In order to insure complete shielding of radiations arriving from the rear, it is necessary to insure accurate regulation of the amplitude and phase relations between the currents picked up by the antenna and the reflector. The compensator schemes used therefor are 1 0 greatly a function of the frequency, and they insure unilaterally directional reception only for a very definite wave-length. In the arrangements heretofore used the means provided for regulating the phase and the amplitude are disposed directly at the antenna, whence the incoming currents are conducted to the receiver by way of an energy line.
According to the present invention, both the antenna as well as the reflector are provided each with an energy feed line (or downlead) so that amplitude and phase regulation for the antenna and the reflector current may be effected directly at the receiver. As a resultit isfeasible to insure perfectly unilateral directional recep'- tion inside a relatively large wave band.
Referring to the drawing, Figs. 1 and 2 show' 35 throughout the entire frequency band it is'recom mendable to terminate the two energy feed lines LA and LR by such ohmic resistances WA and We that no standing waves are likely to be produced upon the same.
The arrangement is also useful for the simultaneous reception of several waves. All that is necessary for this purpose is to interpose non-reactive coupling units, or links between the energy- A fundamental case covering this scheme is shown in Fig. 2. Thermionic tubes are connected in parallel relation to the resistances WA and WR. In the case of the illustration any unsymmetric energy feed line or downlead has been assumed of which one conductor is earthed. When using symmetric energy lines it is necessary to provide symmetric push-pull circuit schemes. Fundamentally speaking, simultaneous reception of several waves is feasible also without the terminal resistances WA and We. Since antenna and refiector are equivalent it is possible to receive simultaneously from opposite directions, and it is immaterial in this connection whether the incoming waves are equal or dissimilar.
I claim:
The combination in a radio receiving system of a plurality of antennae, a receiver, individual energy feed lines coupling said antennae to said receiver, a thermionic vacuum tube individually coupling said receiver with each of said energy ALBRECHT GQTHE.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996804X | 1931-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1996804A true US1996804A (en) | 1935-04-09 |
Family
ID=7935290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US607913A Expired - Lifetime US1996804A (en) | 1931-04-28 | 1932-04-28 | Antenna arrangement for the reception of short electrical waves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1996804A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2712603A (en) * | 1950-05-10 | 1955-07-05 | Decca Record Co Ltd | Aircraft receiving antennae |
| US2810906A (en) * | 1951-08-29 | 1957-10-22 | Leonard J Lynch | Electronic antenna |
-
1932
- 1932-04-28 US US607913A patent/US1996804A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2712603A (en) * | 1950-05-10 | 1955-07-05 | Decca Record Co Ltd | Aircraft receiving antennae |
| US2810906A (en) * | 1951-08-29 | 1957-10-22 | Leonard J Lynch | Electronic antenna |
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