RU71035U1 - ANTENNA COMBINED RANGE - Google Patents

Abstract

Combined band antenna refers to all-wave antennas for individual reception of broadcasting signals, the antenna contains a log-periodic antenna 1 with a two-wire line 2, a power cable 3, a symmetrical vibrator 4, a short-circuit loop 5, an antenna mount 6, the arms of the symmetric vibrator 4 are bent at an angle to each other to the radiation side and connected with the help of contact jumpers 7 to the wires of the two-wire line 2. Behind the symmetric vibrator 4 there is a passive reflector 8, whose shoulders are bent to a blunt angled to each other in the direction opposite to the radiation and are interconnected by a jumper 9. A short-circuited loop 5 is formed by the end segment of a two-wire line 2, the mount 6 of the antenna 1 is located between the symmetric vibrator 4 and the passive reflector 8. Two-wire line 2, the symmetric vibrator 4 and passive the reflector 8 is mounted on the mount 6 through the dielectric gaskets 10. 2 ill.

Description

The utility model relates to the field of radio engineering, in particular to antennas, and can be used, for example, in television broadcasting for the purpose of individual reception of terrestrial television signals, as well as in other systems for the reception and transmission of radio waves.

Known broadband receiving television antenna (Figure 1), which uses the log-periodic structure of the emitters with a two-wire line (product catalog of the company "COBER"). The antenna is used as an individual and provides a satisfactory reception in the III, IV and V television ranges. The main advantage of the antenna is its wide band. However, reception is required in a wider frequency band. Of greatest interest in the individual reception of television programs are options for all-wave antennas, the operating frequency range of which covers all television channels of the meter and decimeter wave ranges. Such all-wave antennas are made in the form of combined antenna systems in which two or three types of broadband antennas are combined into a single design.

Known combined range antenna, consisting of symmetrical rhomboid-shaped vibrator cells, electrically matched to the total load, a flat reflector, equipped with a fan vibrator and an interfacing device connected to symmetrical rhomboid and fan vibrators. (See RF patent No. 2195058, filing date 2000.06.20, publication date 2002.12.20 “Combined band antenna”). However, the known antenna design has limited frequency properties while being complex and cumbersome.

The closest in technical essence and the achieved effect and selected as the closest analogue is the antenna (Figure 2) with the trademark LOCUS L

010.20 (See. Yu. Nosov, A. Kukaev “Encyclopedia of Domestic Antennas.” M.: “SOLON-R”, 2001).

The basis of the LOCUS L 010.20 antenna is

log-periodic decimeter range antenna in combination with a symmetric meter wave vibrator. The log-periodic antenna uses a two-wire line, the power cable is laid inside one of the wires of the two-wire line. In the passive version (without an amplifier), the symmetric vibrator has a balancing device (using ferrite rings) and is connected to the power cable of the log-periodic antenna using a summing device.

According to its operational characteristics, the LOCUS antenna belongs to broadband antennas for individual reception, providing satisfactory reception in relatively simple conditions (with a sufficient signal level, in the absence of interfering reflections, screening obstacles, etc.). This is a consequence of the fact that a symmetric vibrator that provides reception in the meter wavelength range has weak directional properties.

The objective of the utility model is to create a combined antenna design of radiating elements of the decimeter and meter ranges with an increase in gain and directional properties in the meter wavelength range while ensuring simplicity and reliability.

The technical result that allows us to solve the problem is to optimize the design of the combined antenna band.

The problem is achieved in that in the well-known combined band antenna containing a log-periodic antenna with a two-wire line, a power cable inside one of the wires of the two-wire line, a symmetric vibrator, a short-circuit loop, an antenna mount, according to a useful model, the arms of the symmetrical vibrator are bent at an angle to each other to a friend in the direction of radiation, they are connected with the help of contact jumpers to the wires of the two-wire line, behind the symmetric vibrator there is a passive reflector, the shoulders of which bent at

obtuse to each other in the direction opposite to the radiation and are connected by a jumper, a short-circuited loop is formed by the final segment of a two-wire line, the antenna mount is located between the symmetric vibrator and the passive reflector. A two-wire line, a symmetric vibrator and a passive antenna reflector are mounted on the mount via dielectric gaskets.

Studies on patent and scientific and technical sources of information indicate that the proposed utility model is unknown, and therefore meets the criterion of "novelty."

The proposed utility model can be manufactured at any enterprises specializing in the manufacture of antennas since this requires well-known materials and standard equipment, widely produced by domestic and foreign industry.

Thus, the inventive combined band antenna meets the criterion of "industrial applicability".

The proposed set of essential features informs the inventive combined antenna of the band new properties that allow us to solve the problem, namely the creation of a combined antenna design of the radiating elements of the decimeter and meter ranges with an increase in gain and directional properties in the meter wavelength while ensuring simplicity and reliability.

The implementation of the shoulders of a symmetrical vibrator bent at an angle to each other in the direction of radiation improves the quality of reception.

Direct connection of a symmetrical vibrator to a two-wire line eliminates the need for balancing and summing devices, which simplifies the design.

The introduction of a passive reflector, whose shoulders are bent at an obtuse angle to each other in the direction opposite to the radiation, behind a symmetric vibrator increases the gain and directional properties of the symmetric vibrator in the meter wavelength range.

The implementation of the mount between the symmetric vibrator and the passive reflector provides compactness and structural strength of the antenna.

The fastening of the two-wire line, the symmetric vibrator and the passive reflector on the mount via dielectric gaskets ensures the independent operation of the symmetric vibrator with a reflector and a log-periodic antenna.

Thus, the combination of essential features allows to improve the quality of signal reception by increasing the gain and directional properties in the meter wavelength range while ensuring simplicity and reliability of the combined band antenna design.

The proposed utility model is illustrated by drawings:

Figure 3 is a front view and a top view of the antenna

Figure 4 - section aa in a top view of the antenna

The combined range antenna contains a log-periodic antenna 1 with a two-wire line 2, a power cable 3, a symmetrical vibrator 4, a short-circuited loop 5, an antenna mount 6, the arms of the symmetric vibrator 4 are bent at an angle to each other in the direction of radiation and connected using contact jumpers 7 to the wires of the two-wire line 2. Behind the symmetric vibrator 4 there is a passive reflector 8, the shoulders of which are bent at an obtuse angle to each other in the direction opposite to the radiation and are interconnected by a jumper 9. To a short-circuit loop 5 is formed by the end segment of a two-wire line 2, the attachment point 6 of the antenna 1 is located between the symmetric vibrator 4 and the passive reflector 8. The two-wire line 2, the symmetric vibrator 4 and the passive reflector 8 are mounted on the mount 6 through dielectric gaskets 10. Design of the mount 6 It is simple and represents an L-shaped bracket with a bracket and a fixing pin.

Utility Model Work

Log-periodic antenna 1 based on a two-wire line 2, depending on its configuration, determines the main characteristics of the utility model in the decimeter wavelength range (gain and protective coefficient). Power log-periodic antenna 1 is provided by a power cable 3, laid inside one of the wires of the two-wire line 2.

A symmetric vibrator 4 with a reflector 8 determines the main characteristics of the utility model in the meter wavelength range (gain and protective coefficient). The two-wire line 2 is a symmetrical power line for the symmetric vibrator 4, and direct contact between the shoulders of the symmetric vibrator 4 and the two-wire line 2 is provided using contact jumpers 7. To ensure compact design, the passive reflector 8 is installed in close proximity to the symmetric vibrator 4 on one node mounting 6, and to preserve the directed properties of the symmetric vibrator 4 and reflector 8, their shoulders are bent at an obtuse angle to each other in opposite directions . The antenna mount 6 is located at the end of the structure of the log-periodic antenna 1. The two-wire line 2 ends with a short-circuit loop 5. The length of the short-circuit loop 5 is counted from the connection point of the contact jumpers 7 to the end of the loop.

The symmetrical vibrator 4 and the passive reflector 8 are fixed on the mount 6 through dielectric spacers 10 to ensure the isolation of metal elements of the antenna structure.

Claims (1)

A combined range antenna containing a log-periodic antenna with a two-wire line, a power cable inside one of the wires of the two-wire line, a symmetric vibrator, a short-circuited loop, an antenna mount, characterized in that the arms of the symmetrical vibrator are bent at an angle to each other in the direction of radiation, connected using contact jumpers to the wires of the two-wire line, behind the symmetric vibrator there is a passive reflector, whose shoulders are bent at an obtuse angle to each other to the side, opposite positive radiation, and connected by a jumper, a short-circuited loop is formed by the final segment of the two-wire line, the antenna mount is located between the symmetric vibrator and the passive reflector, the two-wire line, the symmetric vibrator and the passive reflector are fixed to the mount through dielectric gaskets.