GB1267089A - - Google Patents
Info
- Publication number
- GB1267089A GB1267089A GB1267089DA GB1267089A GB 1267089 A GB1267089 A GB 1267089A GB 1267089D A GB1267089D A GB 1267089DA GB 1267089 A GB1267089 A GB 1267089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerial
- adcock
- frame
- terminals
- dipoles
- 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
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
- H01Q21/12—Parallel arrangements of substantially straight elongated conductive units
- H01Q21/14—Adcock antennas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Details Of Aerials (AREA)
Abstract
1,267,089. Aerials; radio direction-finders. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 18 Aug., 1969 [17 Aug., 1968], No. 41118/69. Headings H4A and H4D. A direction-finder aerial is arranged so that it can be used both as a frame aerial and an Adcock aerial. As described, two pairs of parallel vertical dipoles 1-1, 2-2 and 3-3, 4-4, Fig. 1, are provided with respective horizontal interconnections 5 at their upper and lower ends and with switching devices 6, from which they are fed. The two devices 6 are interconnected, and frame aerial voltages are developed at upper terminals 7 and Adcock aerial voltages at lower terminals 8. In the Adcock aerial mode the two dipoles of each pair are effectively in parallel (Fig. 2a, not shown) and the two pairs provide an H-type aerial. In the frame aerial mode the upper and lower arms of the dipoles of each pair provide with their interconnections, two loops in parallel (Fig. 2b, not shown). The switching devices 6 each comprise a transformer 19, Fig. 3, the windings of which are cross-connected between pairs of terminals 11-13, 12-14 associated with the respective dipoles of a pair. The transformer windings present a very high impedance to the currents due to the aerial elements acting as dipoles, but pass the currents due to the aerial elements acting as loops. Hence, a voltage may be picked up at terminals 15, 16 which is substantially due only to frame aerial action. Pairs of capacitors 24-24 are connected between terminals 11, 12 and 13, 14 and, by using a frequency for Adcock aerial operation which is considerably higher than that used for frame aerial operation, they may be arranged to pass the Adcock aerial signals and to block the frame aerial signals. Suitable frequencies are 20-80 MHz (Adcock) and 5 MHz (frame). The voltages due to the Adcock aerial action may be picked up at terminals 20, 21 at the centres of respective windings 22, 23 of an additional transformer connected between each pair of capacitors 24-24. Two of the aerials shown in Fig. 1 may be arranged to form a combined crossed H-type Adcock aerial and crossed-loop aerial.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681766948 DE1766948C3 (en) | 1968-08-17 | DF antenna that can be used both as a loop antenna and as an Adcock | |
| DE2145294A DE2145294C2 (en) | 1968-08-17 | 1971-09-10 | DF antenna that can be used both as a loop antenna and as an Adcock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1267089A true GB1267089A (en) | 1972-03-15 |
Family
ID=25755447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1267089D Expired GB1267089A (en) | 1968-08-17 | 1969-08-18 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2145294C2 (en) |
| FR (1) | FR2015845B1 (en) |
| GB (1) | GB1267089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000028617A1 (en) * | 1998-11-11 | 2000-05-18 | Ericsson, Inc. | Dipole antenna configuration for mobile terminal |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2015845B1 (en) * | 1968-08-17 | 1977-08-05 | Telefunken Gmbh | |
| DE2550984C2 (en) * | 1975-11-13 | 1985-05-30 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | DF antenna that can be used as a frame and as an Adcock for vertically and horizontally polarized waves |
| DE3310291A1 (en) * | 1983-03-22 | 1984-09-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Direction finding arrangement |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1258922B (en) * | 1966-01-29 | 1968-01-18 | Telefunken Patent | Adcock, in which an undirected auxiliary voltage is obtained |
| FR2015845B1 (en) * | 1968-08-17 | 1977-08-05 | Telefunken Gmbh |
-
1969
- 1969-08-12 FR FR6927789A patent/FR2015845B1/fr not_active Expired
- 1969-08-18 GB GB1267089D patent/GB1267089A/en not_active Expired
-
1971
- 1971-09-10 DE DE2145294A patent/DE2145294C2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000028617A1 (en) * | 1998-11-11 | 2000-05-18 | Ericsson, Inc. | Dipole antenna configuration for mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1766948A1 (en) | 1971-09-23 |
| DE2145294C2 (en) | 1981-12-10 |
| DE2145294A1 (en) | 1973-03-22 |
| DE1766948B2 (en) | 1977-01-13 |
| FR2015845A1 (en) | 1970-04-30 |
| FR2015845B1 (en) | 1977-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1267089A (en) | ||
| US1965184A (en) | Antenna arrangement | |
| US2029015A (en) | Antenna | |
| GB805323A (en) | Channel selectors for signal-seeking receivers | |
| GB725386A (en) | Improvements in or relating to aerials | |
| SKALSKAIA | Diffraction of electromagnetic waves by two non-parallel, ideally conducting plates | |
| GB1151328A (en) | Improvements in or relating to Electromagnetic Wave Receivers | |
| GB1115215A (en) | Two to four wire telephone hybrid transformers | |
| US1907751A (en) | Punching press | |
| REDDY | Limiting polarization of high frequency radio waves, passing vertically downward through the ionosphere | |
| SU1083264A1 (en) | Loop aerial | |
| GB1329078A (en) | Tacan antenna system | |
| GB194365A (en) | Improvements in or relating to wireless telegraphy antennae | |
| SU17427A1 (en) | Horizontal antenna | |
| US1907571A (en) | Radio receiving apparatus | |
| GB168925A (en) | Improvements in and relating to wireless reception and particularly to methods and means whereby the direction of the incoming waves can be determined | |
| GB1075120A (en) | Electronic switching device | |
| JPS5326643A (en) | A ntenna | |
| US1425154A (en) | Apparatus for receiving radiosignals | |
| GB598548A (en) | Improvements in or relating to antennae for radio transmitters | |
| SU1385169A1 (en) | Vhf aerial | |
| GB582128A (en) | Improvements in tunable radio receivers | |
| GB884337A (en) | Means for the generatiion and transmission of very large pulses of radio frequency waves | |
| GB596442A (en) | Improvement in antenna systems | |
| GB540681A (en) | Improvements in radio direction finding equipments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |