RU2546069C2 - Dipole antenna - Google Patents

Abstract

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to antenna engineering, particularly to dipole antennae with a reflecting shield with a semi-directional beam pattern, and can be used in communication engineering for receiving navigation system signals and for setting up a receiving-transmitting channel with the Earth in command and telemetry systems. In the dipole antenna, having a housing with a cross-shaped dielectric-filled balancing device cut therein, an amplitude-phase divider and coaxial feed lines, unlike the known dipole antenna, radiating arms of the dipole radiator are integrated with the housing in the form of a prism with a base made of right-angled triangles, wherein the cross-shaped dielectric-filled balancing device is cut in the first face of the housing between orthogonal dipole radiators, the reflecting shield is placed in the second face of the housing with a microstrip uncoupled divider with a 90° phase-shifting line, coupled with the coaxial feed lines which feed the orthogonal dipole radiators, a radio-frequency connector with a cable is connected to the input of the microstrip divider.

EFFECT: simple design of arms of a dipole radiator and improved reliability.

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Description

The invention relates to antenna technology, in particular to dipole antennas with a reflective screen with a semi-directional radiation pattern, and can be used in communication technology, especially on board a space object for receiving signals from navigation systems and for organizing a transceiver channel with the Earth in command telemetry systems.

Known dipole antennas with a reflective screen with a semi-directional radiation pattern (Laur Josef [DE]; Schricker Klaus Ing Grad [DE]. Printed dipol antenna using stripline technology. DE 3247425 (A1) - 1987-01-02). However, this antenna has straight or inclined dipole arms.

Closest to the proposed antenna is the antenna described in (Puzella Angelo M [US]; Makarov Sergey [US]; Morrison Patrick [US]. Droopy bowtie radiator with integrated balun. US 2011291907 (A1) - 2011-12-01). This antenna is a dipole on a dielectric base with the shape of the “half-opened butterfly wings” radiating elements filled with a dielectric of a balancing device. However, this antenna has sloping flat shoulders of the dipole emitter.

The objective of the present invention is to improve the design of the dipole antenna by simplifying the design of the arms of the dipole emitter and increasing the reliability of the structure by reducing the number of structural elements and the possibility of manufacturing the radiating shoulders and the housing of the dipole antenna from one metal blank using turning and milling operations.

The technical result is achieved by the fact that in a dipole antenna containing a housing, a balancing device with dielectric filler, orthogonal dipole emitters, coaxial power lines, a reflective screen, a microstrip not decoupled divider with a phase shift line of 90 ° and an RF connector with a cable, in contrast to the prototype radiating shoulders of the dipole radiator are made in one piece with the body in the form of prisms with bases of rectangular triangles, while the cross-shaped symmetrical device with die a ctric filler is cut in the first end of the case between the orthogonal dipole emitters, the reflective screen is located in the second end of the case with a microstrip uncoupled divider with a 90 ° phase-shift line, connected to coaxial recording orthogonal dipole emitters, an RF connector with a cable connected to the input of the microstrip divider.

Tests of the industrial design of the proposed antenna confirmed the conformity of the technical characteristics to the set goals.

The inventive antenna differs from the prototype in that:

- radiating shoulders of the dipole are made in one piece with the body in the form of prisms with bases of rectangular triangles.

Comparison of the claimed technical solution not only with the prototype, but also with other technical solutions in this and related fields of technology allows us to conclude that they lack features similar to the essential distinguishing features of the claimed antenna, and recognize the claimed solution as meeting the criterion of "significant differences".

The invention is illustrated graphic materials. Figure 1 and figure 2 presents the cross section of the antenna, figure 3 shows the antenna in isometric projection.

The antenna contains a housing with radiating dipole arms and a shield 1, a balancing device with dielectric filling 2, coaxial power lines 3, a microstrip board with an uncoupled divider and phase shifting line 90 ° 4, an RF connector with a piece of coaxial cable 5, and a reflecting screen 6.

The antenna works as follows. An electromagnetic wave is divided equally through the RF connector with cable 5 in the microstrip 4 and, with a phase shift of 90 °, is supplied to coaxial power lines 3, which excite orthogonally located dipoles with radiating arms in the form of prisms with bases of right angles. The orthogonal dipoles excited in the described manner emit an elliptically polarized wave, the direction of rotation of which depends on the sign of the phase shift of 90 °.

Claims (1)

A dipole antenna comprising a housing, a balancing device with dielectric filler, orthogonal dipole emitters, coaxial power lines, a reflective screen, a microstrip uncoupled divider with a 90 ° phase shift line and an RF connector with a cable, characterized in that the radiating arms of the dipole emitter are made in one the whole with a case in the form of prisms with bases of right-angled triangles, while a cross-shaped balancing device with dielectric filler is cut in the first tse housing between orthogonal dipole radiators reflecting screen is located in the second end of the body to a microstrip divider is not uncoupled from the phase shifting line 90 °, associated with the coaxial dipole radiators energized orthogonal lines, RF connector with a cable connected to the input microstrip divider.

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