SU1417086A1 - Impedance aerial - Google Patents

Abstract

This invention relates to surface wave antennas with modulated phase velocity. The purpose of the invention is to form a polarization with horizontal polarization. An impedance antenna contains a driver 1, a relief surface 2 of parallel conductors 3, dielectric substrates 4, 5, and an introduced metal surface () 6. Conductors 3 are arranged with a period, where l is the working wavelength of the conductors perpendicular to the longitudinal axis of the antenna and parallel MP 6. Distance between surfaces 2 and 6, R. Capacitive loads are included in each conductor. The causative agent 1, in the form of a horn with an impedance wall, transforms the wave / Us in the feeding waveguide into a delayed magnetic supply wave, which, falling on the impedance surface with the distribution of surface impedance along the longitudinal axis of the antenna, smoothly transforms into a radiation wave with horizontal polarization . 1 3. p. F-crystals, 3 ill.

Description

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The invention relates to antennas of fiCpxHOCTHbix waves with modulated phase velocity.

The purpose of the invention is the formation of radiation with horizontal polarization

FIG. 1 shows a block diagram of an impedance antenna; in fig. 2 - the equivalent pattern of the relief surface; in fig. 3 - impedance antenna, an example of execution.

The impedance antenna contains a driver 1 (Fig. 1), a relief surface 2 of parallel conductors 3, dielectric substrates 4 and 5 and a metal surface 6. The conductors 3 are arranged with a period, 1 l parallel to each other and the metal surface 6, while their axes are perpendicular are the longitudinal axis of the impedance antenna. The distance between surfaces 2 and 6.

In each conductor (Fig. 2), the diameter of which does not exceed 0.1 / g, with a period of 7 is: 0, l, capacitive loads are included, ve. Figures 1 are constant along each conductor and measured along the longitudinal axis of the impedance antenna but are not

С -Z Г /

and/.

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where / (1Г „120l

Xg (y) 1n Zr (y)

o) A g (y) in; new wave free

7

number;

soirtiv.lepie space; agencies;

the value of the purely reactive surface immediation at the point of the air axis is theine1 1 y;

o) 2l / -circular frequencies; ;

/ working frequency.

Conductors 3 can be EXHAUST

(Fig. 3) in the form of () T) ezk () in p.yuskovoy; 1ippi, located on the sides of the dielectric iodlozhki 4. the crowd of which is not more than 0.2 / g, with mixing each other relative to each other. 1 axis proiodi.kai to 0.5 / i.

The overlap and between the two strip segments .INII, rap (X K) gens on different sides of the dielectric substrate 4, form capacitive loads Cu.

The dielectric substrate 4 is located on the dielectric substrate 5 with relate, dielectric and dielectric constant

The antenna works as follows.

five

0

five

0

The causative agent 1 in the form of a horn with an impedance wall transforms the Nsch wave in the supplying waveguide into a slowed-down magnetic supply wave, chotopt, hit the impedance surface with the distribution of the surface imie. ; d. along the longitudinal axis of the antenna Zr (t /}, p. 1 is also transformed into a radiation wave with horizontal polarization.

Formu.a ir.ioojieTL ULL -i

Claims (2)

1. Impedance ation, contains a relief surface (; c11 with the law of change of the surface impedance Zr {y}, where y is the axis of the impedance antenna, and the causative agent is odd. With the aim of forming a field of a radiation with horizontal polarization, a meta-numerical surface is introduced into it, the shape of which along the current axis of the impedance antenna coincides with the shape of the ье 4e) surface, and the embossed surface is made of a distant 7x period; 0.1 l, where l is the length of the working wave, iara, interlead conductors 1x, perpendicular the longitudinal axis of the impedance antenna and parallel to the metal surface, while the distance between the two surfaces, 1 /., and in each wire, the distance of which does not exceed (), 1Л, with a period, 1l include capacitive loads, the value of C is constant v.: i). for each conductor and varies along n) the single axis of the impedance antenna along five l j Li / J T cli - - ife-d ., „Fc- 2 DS i ( .Л (у) 1п | Zrfi / 0 five (i) AT- (t / -) BO.:iHOBoe number; wave coripOTnB. ichiii- free space; the value of the pure peaKTiiB surface (, impedance at the point of the axis of an-TCHiHii (/; circular frequency; / - working frequency; 2. The antenna according to claim 1, is different from the fact that each conductor is made in the form of strip lipia. which are located on two sides of a di-elec- tic substrate, the thickness of which is not more than 0.2 / ;. with a comp.1 relative to each other, the axis of the conductor is by the value. Srig.