EP1929579B1 - Multiple phase shifter for electromagnetic waves - Google Patents

Description

The present invention relates to a multi-phase device for electromagnetic waves. It finds particular application in the field of the protection of people vis-à-vis the waves emitted for example by mobile phones.

The appearance and commercial development of cell phones, microwave ovens, as well as the proliferation of radio and television stations make people live in an increasingly dense electromagnetic fog.

The difficulty of visualizing such electromagnetic waves has led, as in the case of radiation protection, to a strong societal need for information and protection.

With regard to the possible impact of mobile telephony on people's health, there have been heated controversies for many years.

One of the difficulties is in measuring the Specific Absorption Rate (SAR), the power absorbed in watts per kilogram of living tissue.

Measurements of SAR in vivo are, of course, not possible by probe sensitive to the electric field or temperature.

The MRI medical imaging and the numerical methods of electromagnetic computation allow the estimation of the electric and magnetic fields but it is difficult to model numerically a radiotelephone (cf FTRD models France Telecom ENST).

Calculations using existing models for GSM give a SAR of 1 watt / kilogram, 13% of that power being absorbed by the brain, with 30% of energy absorbed in a 5 cm cube centered on the inner ear , the estimated maximum SAR in the inner ear being of the order of 0.4 watts / kg for a power of 250 mW and a GSM frequency of 900 MHz.

Although DAS measurements give rise to an uncertainty of 35%, European national regulations mention this because DAS is the only measurable physical parameter unanimously recognized by the scientific and technical community for the health effects of electromagnetic fields of GSM.

Thus, the maximum peak power authorized in France for GSM is 2 watts at 900 Mhz and 1 watt at 1800 MHz, with TDMA division at 217 Hertz, the maximum allowable SAR being set at 0.08 watt / kg for the public. (Regulation 1999 / 519CE) with 2 Watt / Kg locally for 10 grams of fabric.

As an indication, a mean conductivity value of 1S / m for a fabric, at 900 Mhz, gives an electric field strength of 30 V / m to obtain a SAR of 1 W / kg.

Electromagnetic fields related to mobile telephony between 850 and 1900 Mhz have a low apparent thermal effect (less than 0.1 degrees).

• système cardio-vasculaire (pression artérielle, rythme cardiaque),
• cancers (gliomes, méningliomes, neurinomes de l'acoustique, cancers des glandes parotides),
• reproduction et développement embryonnaire,
• système immunitaire (IgA) et endocrinien (mélatonine, cortisol),
• fonctions cognitives telles que mémoire, attention, concentration, sommeil, céphalées, épilepsie,
• barrière hémato-encéphalique,
• protéine de choc thermique.

Numerous studies have been carried out on the health effects of these waves:

• cardiovascular system (blood pressure, heart rate),
• cancers (gliomas, meningliomas, acoustic neuromas, parotid gland cancers),
• reproduction and embryonic development,
• immune system (IgA) and endocrine system (melatonin, cortisol),
• cognitive functions such as memory, attention, concentration, sleep, headache, epilepsy,
• blood-brain barrier,
• heat shock protein.

Studies concerned symptoms that can not be objectified by a doctor (fatigue, feeling of heat, irritability, vertigo).

These epidemiological studies can hardly be affirmative about the impact of mobile telephony on the health of people, since it is not particularly feasible to conduct double-blind tests.

Several press articles in popular science journals have also reported on the potentially harmful effect of electromagnetic waves.

The major national press, particularly French, regularly reports on this issue: see for example in the daily Le Monde of March 10, 1999, January 30, 2001, September 11, 1996, March 28, 2002.

A very large number of patent applications have been filed previously for devices to protect cell phone users (see European Classes H01Q1 / 24A1C and H04B1 / 38P2E).

For example, documents may be referred to WO-03/005487 , FR-2826784 , FR-2781088 , WO-03/043122 , WO-2005/031918 , some of which are from the present inventor.

The protection devices known from the prior art, such as that described in the document WO-2005/031918 , however, have the problem of having a small radius of action. Indeed, it ranges from a few millimeters to a centimeter only.

However, there is a need for protection of people from the waves emitted by transmitters present several meters or even several tens of meters from places where these people are. This is the case for example mobile phone relay stations that may be close to homes.

The problem that arises then is to have a device for protecting people against electromagnetic waves that operates at great distances, up to several tens of meters.

The object of the invention is therefore to provide a solution to the aforementioned problems among other problems.

The invention thus relates to a multi-phaser device for electromagnetic waves.

Typically, the device comprises several phase shift modules. Each phase shift module in turn comprises at least two loops substantially identical or homothetic to each other, substantially planar, and electrically interconnected by two separate interloop connection elements, at a first opening in each of the loops. These loops are electrically isolated from each other with the exception of the inter-loop connection elements.

In addition, each of the phase shift modules is electrically connected by two separate intermodule connection elements to at least one of the phase shift modules, and is substantially identical or homothetic to the other phase shift modules.

Furthermore, the intermodule connection elements each connect one of the loops of one of the phase shift modules at a second opening in this loop, to one of the loops of another of the phase shift modules at a second level. opening in this loop.

Finally, the phase shift modules are electrically isolated from each other with the exception of the intermodule connection elements.

In a first variant, the loops of at least one of the phase shift modules are placed in two different planes.

Preferably, these different planes are then substantially parallel to each other.

In another variant, the loops of at least one of the phase shift modules are placed in the same plane.

Optionally, the plane of the loops of a phase shift module is the same as the plane of the loops of another phase shift module.

In another variant, possibly in combination with any one of the preceding, the plane or the planes of the loops of a phase shift module are different from the plane or planes of the loops of another phase shift module.

Preferably, the plane or planes of the loops of a phase shift module are then parallel to the plane or loops of another phase shift module.

In yet another variant, possibly in combination with any one of the preceding, each of the loops is mounted on a flexible printed circuit and covered with an insulating flexible plate of polymeric material.

The present inventor has not yet been able to explain the physical mechanisms involved in the invention which has just been presented and which will now be explained in more detail.

It seems, but it could not be verified by the present inventor, that each phase-shifting module of the invention does not, strictly speaking, comprise an antenna (see, by comparison, the documents US 5627552 , US 3582951 and US 5451965 ) of the folded hertz dipole or Yagi type, or else magnetic loop frame.

The present inventor has, moreover, like all the persons of the profession concerned, encountered significant difficulties to carry out DAS measurements making it possible to demonstrate the beneficial effect of his device.

The present inventor has discovered that the BEST MSA 21 type B class 2 series 1455 apparatus of Intertek Testing Services, performing electroacupuncture measurements on points located on the patient's hand, makes it possible to visualize and measure an effect. for the present invention, this effect being improved over those obtained with the prior devices, in particular those described in the documents WO-03/005487 , FR-2826784 and FR-2781088 and WO-2005/031918 .

1. 1) vérification des champs électriques, magnétiques et ondes électromagnétiques dans le local d'essai à l'aide d'un mesureur de champ (1Hz à 2.000 Hz) de marque Krystal M 840 D modifié Faditech type Z 5000, d'un mesureur de champ HF à large bande (23 MHz à 16GHz) de marque Faditech type L.B série 683, et d'une sonde blindée adaptée au Z 5000 ci-dessus.
   A titre indicatif, lors des essais, la valeur de champ E à 50 Hz était de l'ordre de 2V/m, le champ magnétique à 50 Hz était inférieur à 0,01 nT et les ondes électromagnétiques non décelables pour les bandes FM, VHF, UHF et micro-ondes, une valeur de 0,1 mW étant mesurée pour les ondes courtes de 23 à 88 MHz.
   Pendant ces mesures, les téléphones portables des personnes présentes étaient éteints.
   La densité de puissance hyper-fréquence locale dans l'air mesurée avec le détecteur HFR1 de la société ROM Elektronik était de 0,30 W/m2 .
2. 2) mesure avec l'appareil BEST MSA 21 type B classe série 1455 doté d'une masse en cuivre tenu dans la main du patient et d'une sonde électro-acupuncture, dans les états suivants :
   • état neutre,
   • état portable allumé porté à 50 cm de la tête d'une personne testée,
   • état portable allumé porté à l'oreille par la personne testée,
   • état portable allumé avec le dispositif selon la présente invention fixé sur ce téléphone portable ou placé entre le téléphone et la main de la personne testée qui tient la masse en cuivre.

To perform measurements with the BEST MSA 21, the following protocol has been followed:

1. 1) verification of electric, magnetic and electromagnetic fields in the test room using a Krystal M 840 D modified Faditech type Z 5000 field meter (1 Hz to 2,000 Hz), a Faditech type LB series 683 broadband (23 MHz to 16GHz) HF field, and a shielded probe suitable for the Z 5000 above.
   As an indication, during the tests, the field strength E at 50 Hz was of the order of 2V / m, the magnetic field at 50 Hz was less than 0.01 nT and the electromagnetic waves not detectable for the FM bands, VHF, UHF and microwaves, a value of 0.1 mW being measured for shortwave from 23 to 88 MHz.
   During these measurements, the mobile phones of those present were switched off.
   The local hyper-frequency power density in the air measured with the HFR1 detector of the company ROM Elektronik was 0.30 W / m2.
2. 2) measurement with the BEST MSA 21 type B class 1455 device with a patient's handheld copper mass and an electro-acupuncture probe, in the following states:
   • neutral state,
   • portable state lit up to 50 cm from the head of a person tested,
   • Portable state turned on the ear by the person tested,
   • portable state lit with the device according to the present invention attached to this mobile phone or placed between the phone and the hand of the test person who holds the copper mass.

• BICOM de Regumed Lochhamer Schlag, S.A ;
• VEGATEST EXPERT de Vega AM Hohenstein ;
• PROGNOS de MedPrevent GmbH & Co ;
• PRT 2000S de Biomeridian.

The present inventor has been able to verify the greater efficiency of the present invention, compared to prior devices, using the following apparatus:

• BICOM of Regumed Lochhamer Schlag, SA;
• VEGATEST EXPERT of Vega AM Hohenstein;
• PROGNOS from MedPrevent GmbH &Co;
• PRT 2000S of Biomeridian.

The present inventor has also been able to verify the effectiveness of the multiphase device of the invention in terms of radius of action. This could indeed be multiplied by a factor that can range from 100 to 3000, depending on the number of phase shift modules, compared to a conventional device.

• figure 1 : représente schématiquement une première variante de réalisation du dispositif de l'invention,
• figure 2 : représente schématiquement une deuxième variante de réalisation du dispositif de l'invention,
• figure 3 : représente schématiquement une troisième variante de réalisation du dispositif de l'invention,
• figure 4 : représente schématiquement une quatrième variante de réalisation du dispositif de l'invention,

Other features and advantages of the invention will appear more clearly and completely on reading the following description of the preferred embodiments of the device, which are given as non-limiting examples and with reference to the accompanying drawings. following.

• figure 1 : schematically represents a first variant embodiment of the device of the invention,
• figure 2 : schematically represents a second variant embodiment of the device of the invention,
• figure 3 : schematically represents a third variant embodiment of the device of the invention,
• figure 4 : schematically represents a fourth variant embodiment of the device of the invention,

As shown in the figures, the device comprises two phase-shifting modules 1, 2, each comprising two metal wires, for example made of copper or copper alloy, these wires each forming a loop 3, 4, 5, 6.

These loops, 3, 4 in the module 1, and 5, 6 in the module 2, are electrically insulated from each other, for example by a plastic material such as polyester, with the exception of two connection elements separate loops 7,8 in module 1 and 9, 10 in module 2.

Indeed, in the module 1, the two loops 3, 4 are interconnected by the two separate inter-loop connection elements 7, 8, at a first opening 11 in each of the loops 3, 4. These connection elements Interboucle 7, 8 are advantageously formed by the wire constituting the other two loops 3,4.

On the other hand, in the module 2, the two loops 5, 6 are interconnected by the two distinct connection elements 9, 10, at a first opening 12 in each of the loops 5, 6. interboucle connection 7, 8 are advantageously formed by the wire constituting moreover the two loops 5, 6.

Moreover, the two modules 1, 2 are connected by two separate intermodule connection elements 13, 14. Each of these intermodule connection elements 13, 14 connects one of the loops 4 of the module 1 to a second opening 15 in the second module. this loop 4, at one of the loops 5 of the other module 2 at a second opening 16 in this loop 5.

The phase-shifting modules 1, 2 are electrically isolated from each other, for example by a plastic material such as polyester, with the exception of the intermodule connection elements 13, 14.

The variant represented in figure 1 corresponds to a device in which each module 1, 2 consists of two substantially identical and flat loops 3, 4 on the one hand and 5, 6 on the other hand.

The loops 3 and 4 on the one hand and 5 and 6 on the other hand could equally well be substantially homothetic to each other, one being thus slightly larger than the other (of the order of a few percent).

The loops of the same module are placed in two different parallel planes, but could equally well be placed in two different planes slightly inclined relative to each other.

Moreover, the module 1 is substantially identical to the module 2, but could equally well be substantially homothetic to this module 2. In the latter case, one or both loops 5 and 6 of the module 2 would be slightly larger, for example. (of the order of a few percents) that one or both loops 3 and 4 of the module 1.

In addition, the respective, different and parallel planes, loops 3 and 4 are also different from and parallel to the respective planes, themselves different and parallel, loops 5 and 6. However, these respective planes different and parallel loops 3 and 4 could just as well be slightly inclined with respect to the different and parallel planes of the loops 5 and 6.

In the variant shown in figure 2 , the entire device is located in the same plane, so that the loops 3 and 4 of the module 1 are in the same plane, substantially homothetic with respect to each other. This plane is of course also that of loops 5 and 6 of module 2, which are also substantially homothetic with respect to each other. As a result, in this variant, the modules 1 and 2 are also in the same plane.

In this variant, the two modules 1 and 2 are substantially identical, but could equally well be substantially homothetic to each other. In the latter case, one or both loops 5 and 6 of the module 2 would for example be slightly larger (of the order of a few percent) than one or both loops 3 and 4 of module 1.

In the variant shown in figure 3 , the loops 3 and 4 of the module 1 are in the same first plane, which is that of the module 1, and the loops 5 and 6 of the module 2 are in the same second plane, which is that of the module 2, different from the and parallel to the foreground.

The second plane, therefore that of the loops 5 and 6 of the module 2, could however also be slightly inclined with respect to the foreground, therefore that of the loops 3 and 4 of the module 1.

Furthermore, the entire module 2 is substantially homothetic to the entire module 1, precisely slightly smaller. However, modules 1 and 2 could just as well be substantially identical.

In the variant shown in figure 4 , the entire device is located in the same plane, so that the loops 3 and 4 of the module 1 are in the same plane, substantially homothetic with respect to each other. This plane is of course also that of loops 5 and 6 of module 2, which are also substantially homothetic with respect to each other. Consequently, in this variant, the modules 1 and 2 are also in the same plane, but substantially homothetic with respect to each other insofar as the module 2 is somehow imbedded in the module 1 .

In each of the variants presented above, the device, after or before final shaping, can be placed in an insulating polymer resin that hardens.

In the variants presented above, the two loops of each module each have only one turn. Optionally, in other variants, not shown, one or more of the loops comprise at least two turns placed in substantially identical or parallel planes.

In a particular embodiment, the loops are connected to at least one capacitor, in series and / or in parallel.

In the case of transmission of medium and high frequency waves, the device can be placed on the lower part of a transmitter such as an antenna for example. Thus, several devices can be placed all around this transmitter in order to provide protection over the entire periphery.

In the case of low frequency wave emissions, the device can be used around generators of electromagnetic fields of very high power (power plants, electric locomotives, ...).

More generally, the device can be installed in medium or low power electromagnetic field generators, such as, for example, electrical equipment (large or small), electric heating, television (the deflection coils and THT transformers being including generators of electromagnetic fields), a digital alarm clock, a mobile phone.

Also, the device can be used in homes near areas of disturbance from the ground (deep fault, water source, ...) which are also likely to generate damaging electromagnetic fields.

The Applicant has found positive effects on non-objectified symptoms, since the device is brought into direct contact with or near a part of the human body, or even up to a few tens of meters, depending on the exact number of modules. phase shift in the device.

The whole of the description above is of course given by way of example and is not limiting of the invention.

In particular, as already mentioned above, the loops of the same modules can be placed in the same plane (they are then substantially homothetic with respect to each other) or in two different, parallel or parallel planes. slightly inclined relative to each other.

Similarly, the different modules, substantially homothetic or substantially identical to one another, can be placed in the same plane. They may possibly be placed in different planes, parallel or slightly inclined relative to each other.

On the other hand, the length of the inter-loop connection elements on the one hand and intermodule on the other hand is not limiting of the invention. She is variable, adjusted in particular according to the configuration chosen and the performance objectives in terms of protection.

In addition, the two inter-loop connection elements of the same module are presented above as being of the same length, without this being however limiting of the invention. Indeed, they could just as well be of different lengths, one being slightly larger than the other.

Likewise, the two intermodule connection elements are presented above as being of the same length, without however being limiting of the invention. Indeed, they could equally well be of different lengths, one being slightly larger than the other.

Finally, the precise shape of the loops is also not limiting of the invention, and may result for example from aesthetic choices other than a purely circular shape (elliptical shape, heart, or other ...).

Claims (8)

1. Multiple phase shifter device for electromagnetic waves, comprising at least one phase shifting module (1, 2), each comprising at least two loops (3, 4, 5, 6) which are substantially identical or homothetic in relation to one another, substantially plane, and electrically interconnected by two separate inter-loop connection elements (7, 8, 9, 10) at a first opening (11, 12) in each of said loops (3, 4, 5, 6), said loops (3, 4, 5, 6) being electrically insulated from one another with the exception of said inter-loop connection elements (7, 8, 9, 10), characterised in that it comprises several phase shifting modules, each of said phase shifting modules (1, 2) being further electrically connected by two separate inter-module connection elements (13, 14) to at least another of said phase shifting modules (1, 2) and being substantially identical or homothetic to said other phase shifting modules (1, 2), said inter-module connection elements (13, 14) each connecting one of said loops (4) of one of said phase shifting modules (1) at a second opening (15) in said loop (4), to one of said loops (5) of another of said phase shifting modules (2) at a second opening (16) in said loop (5), said phase shifting modules (1, 2) being electrically insulated from each other with the exception of said inter-module connection elements (13, 14).
2. Device according to claim 1, characterised in that said loops (3, 4, 5, 6) of at least one of said phase shifting modules (1, 2) are positioned in two different planes.
3. Device according to claim 2, characterised in that said different planes are substantially parallel with one another.
4. Device according to claim 1, characterised in that said loops (3, 4, 5, 6) of at least one of said phase shifting modules (1, 2) are positioned in the same plane.
5. Device according to claim 4, characterised in that the plane of said loops (3, 4) of one of said phase shifting modules (1) is the same as the plane of said loops (5, 6) of another of said phase shifting modules (2).
6. Device according to any of claims 1 to 4, characterised in that the plane(s) of the loops (3, 4) of one phase shifting module (1) are different from the plane(s) of the loops (5, 6) of another phase shifting module (2).
7. Device according to claim 6, characterised in that the plane(s) of the loops (3,4) of one phase shifting module (1) are parallel with the plane(s) of the loops (5, 6) of another phase shifting module (2).
8. Device according to any of claims 1 to 7, characterised in that each of said loops (3, 4, 5, 6) is mounted on a flexible printed circuit and covered with an insulating flexible wafer made of polymer material.

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