SU1403151A1 - Aerial - Google Patents

Abstract

The invention relates to radio engineering. The purpose of the invention is to expand the operating range by enabling operation in additional frequency bands. The antenna consists of a flat square 1 formed by linear conductors. Jumpers (П) 3 are attached to the midpoints of sides 2, having a bend in the middle at a right angle. The main feeder is attached to the vertices of 4 right angles. To the midpoints of the sides of square cells (QW) 5, formed by the halves of the sides 2, squares 1 and P 3, additional (reduced by 2 times) P 6 are added, forming additional (reduced by 2 times) QW 7 with gaps between the vertices of 8 additional P 6. To the vertices 8 and 6, segments of feeders of equal length are connected, connecting them to the outputs of the power divider. In QW 7, in a similar way, m. The QW 9 of the next range, still reduced by 2 times, was introduced with a frequency of 4 times the main one. QW 7 and 9 m. are located along the common diagonal or orthogonal to it. 2 Il. and S (L

Description

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The invention relates to radio engineering and can be used, for example, in television receiving antennas.

The aim of the invention is to expand the operating range by enabling operation in additional frequency bands.

FIG. 1 shows a schematic Q cells 7, work on double

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antenna image when working on the same polarization in the main and additional ranges; Figure 2 is the same with orthogonal polarisations.

The antenna consists of a flat square 1 with side 2 formed by linear conductors. Jumpers 3 are attached to the midpoints of sides 2, having a bend in the middle at right angles. The main feeder is attached to the vertices of 4 right angles (conventionally not shown). To the middle of the sides of the square cells 5 formed by the halves of the sides 2 of flat kbadrata 1 and jumpers 3, additional (reduced by 2 times) jumpers 6 are attached, forming additional (reduced by 2 times) square cells 7 with gaps between the tops of 8 additional jumpers 6. K The vertices 8 of additional jumpers 6 are connected to segments of feeders of equal length connecting them to the outputs of the power divider (segments of the feeders and the power divider are not shown).

In additional square cells 7 in a similar way can be. square 9 cells, reduced by a factor of 2, have been introduced for the next working range, with a frequency of 4 times Bbmie main.

Additional square cells 7 and 9 can be located along a common diagonal of a flat square 1 (Fig. 1) or orthogonal to it (Fig. 2).

The antenna works as follows.

When voltage is applied across the main feeder, the linear conductors of the antenna excite currents that emit 50 energy into space at the main low frequency. Polarization radiation35

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frequency is similar to the transmitter at the main frequency. All emitters at the doubled frequency form an in-phase grating with an increased gain factor, since they are connected to a common divider by feeder segments of equal length.

Similarly, when you increase the frequency by 4 times, the emitters work, which are expanded by 4 times smaller additional square cells 9. At different mutual positions, square cells 5 and additional square cells 7 and 9 (Fig. 1 and 2) radiate the same or perpendicular polarisations in the main and various additional ranges.

Claims (1)

Invention Formula An antenna made up of linear conductors consisting of a flat square with side A and two square cells formed by half of the adjacent sides of a flat square and two bridges of length d, curved in the middle at a right angle, connected to the middle of the adjacent flat. the square and the connected right-angle vertices to the main feeder, characterized in that, in order to expand the working range by providing an opportunity to work in additional frequency ranges, in each square cell are introduced geometrically It is convenient to them by a factor of similarity 1: 2 additional square whose webs which vertices are connected directly inputted angle feeder segments of equal length to the outputs of power divider dennogo cc. my field is horizontal (fig. 1) or vertical (fig. 2). At a frequency 2 times higher than the main one, the voltage frequencies are supplied through the power diagonal in-phase to the gaps between the additional square cells 7. The zigzag radiators formed by the additional square five 0 five 0 0 five 0 five frequency is similar to the emitter at the main frequency. All emitters at the doubled frequency form an in-phase grating with an increased gain, since they are connected to a common divider by feeder segments of equal length. Similarly, when the frequency is increased 4 times, the emitters are formed by 4 additional square cells reduced by 9 times. At different mutual positions of square cells 5 and additional square cells 7 and 9 (Fig. 1 and 2), fields of equal or perpendicular polarization are emitted mostly and various optional ranges. Invention Formula An antenna made up of linear conductors consisting of a flat square with a side L and two square cells formed by the halves of the adjacent sides of a flat square and two bridges of length d, bent in the center at a right angle, connected to the middle of the adjacent sides of the flat square and connected by vertices of right angle to the main feeder, characterized in that, in order to expand the working range by providing the possibility of working in additional frequency ranges, g ometricheski similar coefficient of similarity with 1: 2 additional square cell, which webs at the vertices of a right angle are connected by segments introduced feeders equal length inputted with the outputs of the divider output.