RU11930U1 - ANTENNA FRAMEWORK NON-RESONANCE - Google Patents

Abstract

A non-resonant frame antenna containing a symmetric antenna element with two outputs, between which a first capacitor is connected with the possibility of adjustment, characterized in that the first output of the symmetric antenna element is connected via additionally adjustable second capacitor connected in series and the inductance element with the second output of the symmetric antenna element with two outputs, while the first and second outputs of the symmetric antenna element with two outputs are respectively the first and second outputs of the non-resonant loop antenna, while the symmetric antenna element with two outputs is made in the form of an incomplete torus from a cylindrical tube with an external diameter D1 and thickness D2 from an electrically conductive material with a small resistivity and dimensions: the outer diameter of the incomplete torus D3, inner diameter - D4 and the distance D5 between the edges of the incomplete torus cut off and flattened on both sides to the thickness D6 and to the width D7, which are the first and second outputs of the symmetric antenna element, chrome In order further submitted inductance element is similar in construction to the symmetric antenna element with two outputs, the dimensions given above are not multiples largest inner diameter of the partial volume of the torus.

Description

Class MPK5H01Q 7/00, 5H01Q 9/02, 5H01Q 11/02

The name of the utility model. Non-resonant frame antenna.

Area of use. Non-resonant antennas, transceivers. The prior art. X Analogue design

passive antenna tina oblique beam. The description is given on page 116 in KN. / 1 /. X is aided by narrowband - they have the required signal gain in a narrow operating frequency range (band) / 1.2 /. Description of the prototype. A known design of a loop antenna based on a symmetrical antenna element with two outputs, between which a capacitor is included with the possibility of adjustment. The description is given on page 117 in the book. / 2 /.

Criticism of prototin Devices remain operational in a narrow operating frequency range.

Aim: To expand the operating range of the antenna frequencies.

The goal is achieved by choosing

the design of a symmetrical antenna element in the form of an incomplete volume torus with a non-dimensional size in relation to the wavelength corresponding to the highest frequency of the bottom range of the received signals and with compensation elements for the reactance of the symmetric antenna element with two outputs in a wide frequency range.

To this end, a non-resonant loop antenna containing a symmetric antenna element with two outputs between which the first capacitor is connected with the possibility of adjustment is amended so that the nerve output of the symmetric antenna element is connected through additionally made, sequentially connected second capacitor with the possibility of adjustment and the inductance element with the second output symmetric antenna element with two outputs, while the first and second outputs of the symmetric antenna element with

the two outputs are respectively the nerve and second outputs of the non-resonant antenna of the frame (of the claimed device), but the symmetric antenna element with two outputs is made in the form of an incomplete torus from a cylindrical tube with an outer diameter D1 and thickness D2 from an electrically conductive material with low resistivity and dimensions: external the diameter of the incomplete volume torus DZ, the inner diameter is D4 and the distance D5 between the cut and flattened on both sides to the thickness DB and to the width D7 the edges of the incomplete torus, which are the first and second outputs of the symmetric antenna element, however, all dimensions are not a multiple of the inner diameter D4 and the total volume torus calculated by the formula

, / mA

where / is the upper frequency of the operating range of the non-resonant antenna in MHz., in addition, the additionally introduced inductance element is similar in design, material and parameters to the symmetric antenna element with two outputs.

The goal is achieved due to the combination of the following essential features:

1. a symmetrical frame is used as an antenna element;

2. The design of a symmetrical antenna element with two outputs is selected as an incomplete volumetric torus having distributed capacitance and inductance;

3. The dimensions of the symmetric antenna element with two outputs are not multiple (the ratio of sizes is an irrational number) with respect to the smallest wavelength and are not multiple to each other, which ensures uniform distribution of phase centers

3.14- /

induced currents of different frequencies on a superficially incomplete volumetric torus;

4. the compensation elements of the reactance of a symmetric antenna element with two outputs in a wide frequency anianasop are used, for this an additional introduced capacitor with the possibility of adjustment and an inductance element are used.

Among the indicated features, distinctive are 2,3 and 4, which entered into interaction with the first sign and with each other to achieve a single goal - the extension of the operating frequency range of the loop antenna.

1. The symmetric antenna element is made in the form of an incomplete torus with dimensions calculated by the formula

D 300 / m / (1)

s, s. /

where / is the frequency of the received signal in MHz.

But since it is not possible to provide the entire set of resonant sizes in the working frequency range, the wavelength of the highest frequency of the working range is taken as the report unit, for example, for television broadcast stations it is 860 MHz. The wavelength calculated by formula (1) was 0.111 m, this value is taken as the internal diameter of an incomplete volume torus D4 0.111 m. In order to expand the working frequency band by uniformly distributing the phase centers of the signals at different frequencies on the surface of the incomplete torus, the dimensions of this torus are selected times the size of D4, that is, the outer diameter, thickness, and the distance between the ends of the incomplete torus should be determined by the formula D to. i irrational numbers i - serial numbers of the sizes of Table 1. incomplete volume torus see

The ratio of the size of the proposed antenna

The symmetric antenna element with two exits is made of a cylindrical tube with an external diameter D1 and thickness D2 made of an electrically conductive material with a small resistivity and a distance D5 between the edges of the incomplete torus that are cut and flattened on both sides to a thickness D6 and on width D7, which are the first and second outputs of a symmetrical antenna element. As a material for a symmetric antenna element with two outputs, a hollow copper or aluminum tube with a diameter of D1 can be used, the surface of which should be sanded to a mirror finish to reduce current loss resistance. For frequencies of 48 MHz - 230 MHz, the calculated frame is small compared to the long wavelength, therefore, in addition to the electrical component, to the multiple wavelength Table 1

The magnetic component of electromagnetic zero is also used. The magnetic component is orthogonal to the electric. When propagating in a radio channel, the form of polarization takes an ellipsoidal shape, which can be represented as a combination of two different orthogonal components (vertical and horizontal, as well as magnets and electric), see page 13 in book / 6 /. Thus, the antenna must receive signals of any spatial orientation of its components. A symmetrical antenna element with two outputs, made in the form of an incomplete torus, meets this requirement. On the surface of which there will always be placed orthogonal and other components of signals of different orientations induced from the electromagnetic field.

2. To increase the efficiency of the symmetric antenna element with two outputs, it is proposed to use compensation elements for its reactive resistance. At a low frequency of 48 MHz, a symmetrical antenna element with two outputs in the form of an incomplete torus has inductive reactance resistivity, and at a high frequency of 860 MHz, capacitive reactance is resistive. To compensate for the aforementioned reactive resistance, it is proposed to use a corrective chain, including a parallel symmetrical antenna element with two outputs and consisting of a co-capacitor with the possibility of adjustment and inductance element. The principle of the work of such a correcting value is as follows. At a frequency of 48 MHz, the inductive reactance of a symmetric antenna element with two outputs is complemented by an additionally added second capacitor with the possibility of adjustment, while the additionally introduced element of inductance has no effect

the antenna element is compensated for by the non-inductance element introduced by the element, this additionally inserted second capacitor with the possibility of adjusting to what kind of moisture does not have, due to its small reactive coupling at a given frequency at L., which allows improving at high frequencies how

- jatC

noise, tax. The main features of the claimed device. A synchronous antenna element with two outputs and a first capacitor with the possibility of regulation can be represented in a parallel oscillatory circuit consisting of a capacitor C and a capacitor L, a correcting chain is presented in a serial circuit consisting of an additionally inserted second capacitor with a capacity of C1 of the included element of the intrinsic wellness element L1. If the integrated complex of the parallel parallel oscillatory circuit is taken as Z, and the complex resistance of the correcting chain is taken as Z1, then the total resistance of the claimed device with the correct chain

will make

ZO or taking into account the lattice resistances of capacitors n

Z + Z1

containers, as well as equalizing L L1, () + (/ «с- / (fl, c - L)) / 0. (fi, .C-l). (3) fij -L-C- a-i-c + i

f (ZO) dot

(wC-C- (j} -LC G ll- - - - l- - V ((fi / L-C-ey-i-c + i)

 (a) -I C - -a} I - ((). L to-L-C-fi / - + i)

Denoting g, i.c /, reduced to the equation (Y + 1) + 1) o. (4)

The solution of which is L with i, got imaginary

derivative of equation (4) does not have real roots. This proves that the function Z0 (i) has no extrema on

positive axis of frequencies, as required. This means that the amplitude-frequency characteristic of a symmetrical antenna element with two outputs with a correction circuit connected in-line is uniform in a wide frequency band.

The real amplitude-frequency characteristic) of the claimed device will be distorted by parasitic unaccounted reactance resistance, however, unlike the known technical solutions, the claimed device will still have a wider range of operating frequencies.

The frequency dependence of the electrical parameters of a symmetric antenna element with two outputs is less pronounced, the thicker the outer diameter of the tube from which it is made. This property can be explained as follows. Quality factor of a symmetric antenna

an element with two outputs (SAE) is proportional to the ratio of the stored electromagnetic energy to the energy lost during the period of high-frequency oscillations. The lost energy is determined only by the ratio of the SAE length to the wavelength and practically does not depend on the thickness of the SAE. The stored electromagnetic energy is concentrated in the immediate vicinity of the SAE and it is the greater, the smaller the thickness of the SAE. For a thick SAE, the current electromagnetic energy is less, since the electromagnetic field is displaced by the metal from the region of the highest concentration. Thus, when striving to provide a wide range of operating frequencies, it is necessary to use thick SAEs in order to align electric parameters at different frequencies.

At the same time, due to the increase in the thickness of the SAE, the area increases, and hence the gain coefficient in the entire operating frequency range

A symmetric antenna element with two outputs in the form of a volume non-hollow torus has a single phase center in the middle of the incomplete torus, and phase ceitres are uniformly distributed for different frequencies on the surface of the SAE, since the wavelength ratios and the relative sizes of the incomplete torus are chosen by irrational numbers, see table. 1, with the exception of the thickness of the cylindrical tube D2 and the thickness DB of the flattened edges of the incomplete torus. The dimensions D2 and Db are not critical to this requirement, since electromagnetic waves do not penetrate deep into the metal, and the flattened edges of the incomplete torus are in contact with the processing devices, {a rational ratio of all other sizes is a necessary condition for the wideband antenna, and different sections of this torus (this SAE ) by planes of any orientation collectively represent a set of antennas with different wave sizes. That allows the efficiency of forming on the surface of a volumetric incomplete torus

currents from electromagnetic waves in a wider frequency band than on other antennas of the same but linear size. A feature of the surface of an incomplete torus is the ability to lay, encircle its surface with infinitely large willow lengths.

Thus, two distinctive essential nriziaks ensure the achievement of the goal of this technical solution, which consists in expanding the working frequency range with a relatively small size.

In the claimed technical solution provides a set of features and their new relationship, which allowed to obtain a technical result that is clearly not derived from a new additive features. For example, an adjustable capacitor connected in parallel with the outputs of a symmetrical antenna element was used in practice to tune to a specific resonant frequency of the received signal, which led to a narrowing of the operating frequency range.

All of the above is aimed at achieving a unified technical result, so necessary for satisfaction

the ever-growing demands of information users,

received over the air in a wide frequency band.

For this, a non-resonant frame antenna containing

symmetrical antenna element with two outputs between which

included first capacitor with adjustable input

tax. changes that the first output of a symmetrical antenna element

connected via additionally connected, connected in series

adjustable second capacitor and inductance element

with a second output of a symmetric antenna element with two outputs,

wherein the first and second outputs of the symmetric antenna element with

the element with two exits is made in the form of an incomplete torus of an inner tube with an external diameter D1 and a thickness D2 of an electrically conductive material with low resistivity and dimensions: the outer diameter of the incomplete torus DZ, the inner diameter D4 and the distance D5 between the cut and flattened on both sides to a thickness D6 and to the width of D7 by the edges of the incomplete torus, which are the first and second outputs of the symmetrical antenna element, for example, the additionally introduced inductance element is similar in design and symmetry th antenna element with two outputs, wherein all of the above dimensions, except D2 and D6 are not multiples value D4 dnametra nepolpogo internal volume of the torus ..

A new co-locality of the elements and new relationships that provided a solution to the problem of expanding the working frequency range, which allows us to conclude that the claimed technical solution meets the criteria of novelty and significant differences.

Enumeration of figures. Figure 1 shows the device of the non-resonant frame antenna, where are indicated:

1-balanced antenna element with two outputs;

2-first capacitor with adjustable;

3-additionally introduced second capacitor with the ability to adjust;

4- additionally introduced inductance element; 5- common device bus a.

Figure 2 shows the design of a symmetrical antenna element with two outputs, where are indicated:

1 - symmetric antenna element with two outputs, made in the form of a non-hollow (cut) torus from a cylindrical tube; D1 is the outer diameter of the cylindrical tube, 046 m;

D2 - thickness of a cylindrical tube equal to 004 and; DZ is the outer diameter of the incomplete torus, equal to 203 n; D4 - inner diameter of an incomplete torus equal to 111 m; D5 - the distance between the 1 faia of the incomplete torus is equal to 018 m; D6 - thickness of the flattened edges of an incomplete torus, 004 m; D7-shnrnna flattened edges of the incomplete torus, 013 m. On Fig.Z shows the appearance of the antenna frame non-resonant, where are indicated:

1-balanced antenna element with two outputs;

2-first copdepsator with the ability to adjust;

3-additionally introduced second capacitor with the possibility of adjustment;

4- additionally introduced inductance element

5-common device bus a;

6-- stand;

7-conductor shielded cable.

8 and 9 - mounts with the ability to adjust the position of the symmetrical antenna element with two outputs, respectively, in horizontal and vertical planes.

Execution example.

Antenna p f focal non-resonant antenna containing a symmetric 1 antenna element with two outputs between which the first 2 capacitor is connected with the possibility of adjustment, characterized in that the first output of the symmetric 1 antenna element is connected through additionally connected in series second capacitor 3 with the possibility of adjustment and element 4 and inductance with the second output of the symmetric 1 antenna element with two outputs, while the first and second outputs of the symmetric 1 antenna element with two outputs

are the first and second outputs of the non-resonant frame antenna, for example, the first antenna element with two outputs is made in the form of an incomplete torus from a cylinder tube with an external diameter D1 and a thickness D2 of an electrically conductive material with low resistivity and dimensions: an external bottom of an incomplete torus DZ, inner diameter - D4 and the distance D5 between the cut and dummy on both sides to the thickness Db and on the width D7 of the edges of the full torus, which are the first and second outputs of the symmetric antennas of the element, while the additionally introduced inductance element 4 is similar to the design and parameters of the symmetric 1 antenna element with two outputs. The device operates as follows.

Electromagnetic waves induce on the symmetrical antenna 1 element with two outputs electric currents of the working frequencies of the television transmitting ceitres, as well as from other radio stations and interference sources. Symmetric antenna element 1 with two outputs, together with a correcting tag, consisting of the first capacitor 2 with the possibility of adjustment, and additionally included element 4 inductors provide equal conditions for the formation of currents of different frequencies at the output of the claimed device. The information broadband signal enters a television or other receiver where the signal of a particular television channel is extracted. The quality of the TV with such an antenna will increase, because the complex resistance of the claimed device does not depend on the frequency, and the gain is increased due to the larger torus area compared to other antennae having the same linear dimensions. The following known examples of the feasibility of the functional elements of the claimed device are analogues: {a description of a symmetrical antenna 1 element with two outputs is given on pages 117 - 121 in the book. / 3 /, as well as in the advertising of the company HEWLETT PACKARD / 4 /; the first capacitor 2 and an additionally introduced second capacitor with the possibility of adjustment are similar to the prototype, see page 117 in the book. /1/; in the role of the housing 5 of the device, a common bus “land of a known design widely used in radio engineering is used, see page 51 in KN. / 2 /; the additionally introduced element 4 of the inductance of the lime structure is similar to a symmetrical antenna 1 element; stand 6 with fasteners 8 and 9, of known design, is shown on page 35 zas 50 model No. 218651 in Catalog 97, Satellite and Terrestrial Antenna Prjducts and Systems, Kathrein Antenna Electronic; matched 7 shielded cable - matched shielded cable of lime construction / 2 /. Efficiency. The proposed non-resonant loop antenna extends the working range of the signal reception frequencies by choosing the design of a symmetrical antenna element with two outputs in the form of an incomplete volume torus, the dimensions of which are determined by the irrational relationship with the minimum wavelength of the high-frequency border of television programs, while symmetrical reactance compensation elements are used rod element with two outputs in a wide frequency range. Comparison of the claimed device with the prototype, as well as with well-known analogs shows the advantage of expanding the operating frequency range of the received signals by a non-resonant loop antenna. It is known that loop antennas can be used not only as receiving antennas, but also as transmitting antennas

SI p. 120-121 in the book. III. Having expanded the working frequency range of the loop antenna by obtaining the total resistance of the claimed device independent of the frequency of the signal, we increase the efficiency of the loop antenna by ensuring the operability of such an antenna in various ranges in a wide frequency band, which is a public need. The symmetry, the presence of a single center of symmetry, as well as the uniform distribution of phase centers of various wavelengths over the surface of such an antenna, due to irrational ratios of sizes and wavelengths, ensured that the resistance is independent of frequency, which made it possible to create a broadband antenna for both receiving and transmitting radio waves .

Bibliographic data:

1.Belotserkovsky G.B. Fundamentals of radio engineering and antennas, part 2. Antennas.

- M .; Owls radio, 1969.328 s.

2. Nesterenko I.I., Zhuzhevich A.V. Choose the antenna yourself - M .: Solon, 1998,255 s.

3.GENERAL CATALOGUE: NO EU 9502, 1995-1996 (p. 24, antenna models: EU-534P, EU-535P, EU-662P, JCBSEE, Taiwan.

4.Test & Measurement Product Infonnation, HEWLET PACKARD HP 11966A K12 Active / Passive Loop Antenna Set, 1 kHz to 30 MHz.

5.Fradin A.3. Antenna feeder devices. Textbook for communication universities - M .: Communication, 1977,440 p.

6.Vlasov V.I., Bermap Y.I. Design of high-frequency devices of radar stations -L .: SudostroenieI972.

Claims (1)

A non-resonant frame antenna containing a symmetric antenna element with two outputs, between which a first capacitor is connected with the possibility of adjustment, characterized in that the first output of the symmetric antenna element is connected via additionally adjustable second capacitor connected in series and the inductance element with the second output of the symmetric antenna element with two outputs, while the first and second outputs of the symmetric antenna element with two outputs are respectively the first and second outputs of the non-resonant loop antenna, while the symmetric antenna element with two outputs is made in the form of an incomplete torus from a cylindrical tube with an external diameter D1 and a thickness D2 of an electrically conductive material with a small resistivity and dimensions: the outer diameter of the incomplete torus D3, inner diameter - D4 and the distance D5 between the edges of the incomplete torus cut off and flattened on both sides to the thickness D6 and to the width D7, which are the first and second outputs of the symmetric antenna element, chrome In order further submitted inductance element is similar in construction to the symmetric antenna element with two outputs, the dimensions given above are not multiples largest inner diameter of the partial volume of the torus.