DE909583C - Antenna arrangement for ultra-short waves - Google Patents
Antenna arrangement for ultra-short wavesInfo
- Publication number
- DE909583C DE909583C DET2638D DET0002638D DE909583C DE 909583 C DE909583 C DE 909583C DE T2638 D DET2638 D DE T2638D DE T0002638 D DET0002638 D DE T0002638D DE 909583 C DE909583 C DE 909583C
- Authority
- DE
- Germany
- Prior art keywords
- radiator
- coil
- rod
- section
- cross
- 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
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
Landscapes
- Details Of Aerials (AREA)
Description
Bei ultrakurzen bzw. Dezimeterwellen verwendet man bekanntlich zur Erhöhung der Frequenzbandbreite Strahler großen Querschnittes, z. B. in Gestalt dicker Rohre.In the case of ultra-short or decimeter waves, it is well known that the Increase in the frequency bandwidth of radiators with a large cross-section, e.g. B. in shape thick pipes.
Es ist ferner bei Antennenanordnungen allgemein bekannt, den Strahler, falls aus räumlichen oder baulichen Gründen erforderlich, kürzer zu machen, als der Abstimmung auf die Arbeitswelle entspricht, und zur Abstimmung und Anpassung eine Induktivität in Reihe mit dem Strahler zu schalten.It is also generally known in antenna arrangements to use the radiator, if necessary for spatial or structural reasons, to make it shorter than corresponds to the adjustment to the working wave, and to adjustment and adaptation to connect an inductor in series with the radiator.
Die vorliegende Erfindung ermöglicht bei derartigen Stabstrahlern großen Querschnittes eine räumliche Verkürzung auf besonders zweckdienliche Weise dadurch, daß, wie Abb. i beispielsweise zeigt, eine in Reihe mit dem Strahler geschaltete Verlängerungsspule so geformt und angeordnet ist, daß ihr Querschnitt im Zuge des Strahlerquerschnittes liegt.The present invention enables such rod radiators large cross-section a spatial shortening in a particularly useful way in that, as Fig. i shows, for example, one connected in series with the radiator Extension coil is shaped and arranged so that its cross-section in the course of Emitter cross-section lies.
Die Spule I' bildet somit die glatte Verlängerung des Strahlers S, wobei sie gleichzeitig als Teil des :Strahlers mitwirkt. Die Feldverteilung wird wesentlich weniger gestört, als wenn die äußeren Umrisse der Spule nicht im Zuge der Umrisse des Strahlers liegen würden. So entsteht eine sehr kompakte Anordnung, insbesondere dann, wenn, wie dargestellt, die Windungen der Spule einfach durch Einschneiden eines schraubenlinigen Spaltes Sp in das Anscblußende des Strahlers hergestellt sind.The coil I 'thus forms the smooth extension of the radiator S, at the same time as part of: the radiator. The field distribution is much less disturbed than when the outer outline of the coil is not in the train the outline of the radiator would lie. This creates a very compact arrangement, especially when, as shown, the turns of the coil simply go through Cutting a helical gap Sp in the connection end of the radiator are made.
Die Festigkeit wird noch erhöht, wenn der rohrförmige Stabstrahler und die Spule durch einen gemeinsamen Isolierstab I gehalten sind oder wenn z. B. ein Teil des Stabstrablers und der Windungsansatz mit Isoliermaterial umpreßt sind.The strength is increased when the tubular rod radiator and the coil are held by a common insulating rod I or if, for. B. a part of the rod strabler and the turn approach are pressed with insulating material.
Während Abb. i einen einzigen aufrecht auf der Erde stehenden Strahler darstellt, zeigt die Abb. 2 als weiteres Ausführungsbeispiel der Erfindung ein symmetrisches Strahlerpaar, von denen jeder gemäß der Erfindung ausgebildet ist. In diesem Fall kann zur Halterung ein einziger durchgehender Isolierkörper I' dienen, der mit entsprechenden Aussparungen für die symmetrische Speiseleitung L versehen ist.While Fig. I a single radiator standing upright on the earth Fig. 2 shows a symmetrical one as a further embodiment of the invention Pair of radiators, each of which is designed according to the invention. In this case can be used for holding a single continuous insulating body I ', the corresponding Recesses for the symmetrical feed line L is provided.
Zum Zwecke der Abstimmung kann eine über die Spule schiebbare Metallhülse angeordnet sein. Die Strahler sind bei den gezeigten Anordnungen z. B. als Rohre kreisrunden O_uerschnittes ausgebildet. Der Querschnitt kann jedoch auch eine elliptische oder ovale oder etwa stromlinienförmige Form gemäß Abb.3 besitzen, wie sie bei Fahrzeugantennen bekanntlich zweckmäßig ist. Die Verlängerungsspule erhält dann die gleiche Querschnittsforrn.For the purpose of voting, a metal sleeve that can be pushed over the coil can be used be arranged. The radiators are in the arrangements shown z. B. as tubes circular O_uschnittes formed. However, the cross section can also be elliptical or oval or roughly streamlined shape as shown in Figure 3, as they are in vehicle antennas is known to be appropriate. The extension coil then has the same cross-sectional shape.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET2638D DE909583C (en) | 1943-04-21 | 1943-04-21 | Antenna arrangement for ultra-short waves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET2638D DE909583C (en) | 1943-04-21 | 1943-04-21 | Antenna arrangement for ultra-short waves |
Publications (1)
Publication Number | Publication Date |
---|---|
DE909583C true DE909583C (en) | 1954-04-22 |
Family
ID=7544006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET2638D Expired DE909583C (en) | 1943-04-21 | 1943-04-21 | Antenna arrangement for ultra-short waves |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE909583C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2982964A (en) * | 1957-03-26 | 1961-05-02 | Internat Telephone & Telegraph | Adjustable tuning device and antenna using same |
US3251063A (en) * | 1964-01-30 | 1966-05-10 | Mckee Edward | Resonant v-type antenna with center loading effected by coil formed integrally with radiating element |
FR2119841A1 (en) * | 1970-12-02 | 1972-08-11 | Chu Associates | |
WO1984002614A1 (en) * | 1982-12-22 | 1984-07-05 | Motorola Inc | Coaxial dipole antenna with extended effective aperture |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE205494C (en) * | ||||
DE429866C (en) * | 1924-11-25 | 1926-06-07 | Gen Electric | Directional antenna |
DE432570C (en) * | 1924-07-25 | 1926-08-13 | Telefunken Gmbh | Arrangement for transmitting or receiving electrical waves using a space beam antenna for short waves |
DE565418C (en) * | 1931-03-06 | 1932-11-30 | Radio Austria Akt Ges | Directional antenna |
DE576506C (en) * | 1930-04-09 | 1933-05-12 | Rca Corp | Directional antenna |
-
1943
- 1943-04-21 DE DET2638D patent/DE909583C/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE205494C (en) * | ||||
DE432570C (en) * | 1924-07-25 | 1926-08-13 | Telefunken Gmbh | Arrangement for transmitting or receiving electrical waves using a space beam antenna for short waves |
DE429866C (en) * | 1924-11-25 | 1926-06-07 | Gen Electric | Directional antenna |
DE576506C (en) * | 1930-04-09 | 1933-05-12 | Rca Corp | Directional antenna |
DE565418C (en) * | 1931-03-06 | 1932-11-30 | Radio Austria Akt Ges | Directional antenna |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2982964A (en) * | 1957-03-26 | 1961-05-02 | Internat Telephone & Telegraph | Adjustable tuning device and antenna using same |
US3251063A (en) * | 1964-01-30 | 1966-05-10 | Mckee Edward | Resonant v-type antenna with center loading effected by coil formed integrally with radiating element |
FR2119841A1 (en) * | 1970-12-02 | 1972-08-11 | Chu Associates | |
WO1984002614A1 (en) * | 1982-12-22 | 1984-07-05 | Motorola Inc | Coaxial dipole antenna with extended effective aperture |
US4504834A (en) * | 1982-12-22 | 1985-03-12 | Motorola, Inc. | Coaxial dipole antenna with extended effective aperture |
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