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WO2013038099A1 - Multi-phase-shifter device for the protection of persons against electromagnetic waves - Google Patents

Multi-phase-shifter device for the protection of persons against electromagnetic waves

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Publication number
WO2013038099A1
WO2013038099A1 PCT/FR2012/052022 FR2012052022W WO2013038099A1 WO 2013038099 A1 WO2013038099 A1 WO 2013038099A1 FR 2012052022 W FR2012052022 W FR 2012052022W WO 2013038099 A1 WO2013038099 A1 WO 2013038099A1
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WO
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Application
Patent type
Prior art keywords
phase
device
antennas
invention
im
Prior art date
Application number
PCT/FR2012/052022
Other languages
French (fr)
Inventor
Garcia Abel Franco
Original Assignee
Garcia Abel Franco
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q17/00Devices for absorbing waves radiated from an aerial; Combinations of such devices with active aerial elements or systems
    • H01Q17/008Devices for absorbing waves radiated from an aerial; Combinations of such devices with active aerial elements or systems with a particular shape

Abstract

The subject of the present invention relates to a multi-phase-shifter device 100 for protecting persons against electromagnetic waves comprising at least one pair P1 and P2 of antennas A11, A12; A21, A22 that are substantially identical or homothetic to one another, and connected together electrically at the level of their ends by two distinct inter-antenna connection elements IA11, IA12; IA21, IA22, these said antennas each comprising at least one substantially spiral shaped loop and being electrically insulated from one another with the exception of said inter-antenna connection elements IA11, IA12; IA21, IA22 so as to form at least one phase-shifting module 10 making it possible to reduce the thermal effect of the electromagnetic waves.

Description

DEVICE MULTI-PHASE SHIFTER FOR THE PROTECTION OF PERSONS FROM RADIO WAVES

Technical area

The object of the present invention relates to the field of multi-phase shifter devices for the protection of persons against electromagnetic waves.

The object of the present invention finds a particularly advantageous application in the field of the protection of individuals against the waves emitted for example by mobile phones, including third type of phone or fourth generation.

State of the art

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

The difficulty to visualize such electromagnetic waves led, just like what happened in radiation protection, to a societal need information and protection.

Regarding the potential impact of mobile phones on human health, much controversy existed for many years.

One of the difficulties of measuring the specific absorption rate (SAR), power absorbed in watts per kilogram of living tissue.

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

MRI medical imaging and numerical methods for electromagnetic calculation allow the estimation of electric and magnetic fields; However, it is difficult to digitally model a radiotelephone (see FTRD models France Telecom ENST).

The following calculations existing models for GSM give a DAS 1 watt / kg, 13% of this power being absorbed by the brain, and 30% of the energy is absorbed in a cube of 5 cm centered on the ear internally, the DAS maximum estimated in the inner ear being of the order of 0.4 watt / kg for a power of 250 mW and a GSM 900 MHz frequency.

Although the SAR measurements lead to an uncertainty of 35%, European national regulations indicate, because the DAS is the only measurable physical parameter recognized unanimously by the technical and scientific community regarding the health effects of electromagnetic fields GSM.

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

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

Electromagnetic fields associated with mobile telephony between 850 and 1900 MHz have low apparent thermal effect (less than 0.1 degree), but which can nevertheless have significant consequences.

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

- cardiovascular system (blood pressure, heart rate)

- cancers (gliomas, meningiomas, acoustic neuromas, cancer of the parotid glands), - reproduction and embryonic development,

- immune system (IgA) and endocrine (melatonin, cortisol)

- cognitive functions such as memory, attention, concentration, sleep, headache, epilepsy,

- blood-brain barrier,

- heat shock protein.

Studies have relevant symptoms that can not be objectified by a physician (fatigue, feeling hot, irritability, dizziness).

These epidemiological studies can hardly be affirmative about the impact of mobile phones on human health, since it is not particularly conceivable to conduct double-blind trials.

Several articles in popular science journals, also mentions the potentially harmful effects of electromagnetic waves.

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

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

Reference may be made, for example, to WO-03/005487,

FR-2826784, FR-2781088, WO-03/043122, WO-2005/031918, including some from the present inventor.

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

However, there is a need of protection vis-à-vis persons waves emitted by the issuers to several meters or tens of meters from where these people are. This is the case for example, mobile phone relay stations that may be located close to homes.

The problem that then arises is to provide a protection device for people vis-à-vis electromagnetic waves that act at distances up to several tens of meters.

To solve such problem, the present inventor has developed a technology that is disclosed in WO 2007/023220.

In this document there is provided a multi-phase shifter to protect persons vis-à-vis the electromagnetic wave device which typically comprises a plurality of phase shifters. Each phase shifter in turn comprises at least two substantially identical or homothetic loops to one another, substantially planar and electrically connected together by two separate loops inter-connecting members, at a first opening in each loop. These loops are electrically insulated from each other except for the inter-loop connection elements.

In this document, each of the phase shifters is electrically connected, by two separate inter-module connecting elements, at least one further phase shifting modules and is substantially identical or homothetic to the other phase shifters.

Furthermore, the inter-module connection elements are each connect one of the loops of one of the phase shifters at a second opening in the loop with one loop of another of the phase shifters to level a second opening in the loop. Finally, the phase shifters are electrically isolated from each other except for the inter-module connection elements.

The applicant submits, however, that the performance of this type of multi-phase shifter can be improved: the applicant considers that the phase shift obtained with a device according to WO 2007/023220 is not optimal.

obiect Summary of the invention

The object of the present invention is to provide a simple and effective solution to the above problems among other problems, problems related to cost and manufacturing being considered in the context of the present invention.

One of the technical problems solved by the object of the present invention is therefore to propose a solution to enable an optimal phase shift for a better protection of persons vis-à-vis electromagnetic waves.

The general concept underlying the present invention is to improve the protective effect obtained above in the device according to WO 2007/023220 by multiplying for each phase shifter the number of antenna.

To this end, the object of the present invention relates to a multi-phase shifter device for the protection of persons against electromagnetic waves.

According to the present invention, the multi-phase-shifting device comprises at least one pair of substantially identical or homothetic antennas to one another and electrically interconnected at their ends by two separate antennas inter-connecting elements.

Advantageously the antennas each comprise at least one loop substantially in a spiral shape; these antennas are electrically insulated also from each other except for said inter-antenna connection elements. Thus, this new advantageous configuration allows to form at least one phase shifter to reduce the thermal effect of electromagnetic waves. Indeed, thanks to this configuration, there is obtained a multi-antenna phase shifter whose protective power against electromagnetic waves is stronger.

In an advantageous embodiment, the device multi-phase shifter according to the present invention comprises at least two pairs of antennas overlapping one another.

Overlapping in the sense of the present invention, it is understood that said at least two pairs of antennas partly overlap; they impinge on one another and intertwine. In other words, when a first and a second antenna pairs are overlapping or intertwined in the sense of the present invention, it is understood that for example one of the antennas of the first antenna pair is positioned between the two antennas of the second antenna pair, or, conversely, one of the antennas of the second pair of antennas is positioned between the two antennas of the first antenna pair.

This overlap of antenna pairs can multiply without limit the number of antennas by phase shifter, which allows to significantly increase the protection of persons vis-à-vis electromagnetic waves.

Of course, here it is understood that, despite the overlap, inter-antenna connecting elements of a pair of antennas are electrically isolated from inter-antenna connection members of the other pairs of antennas.

It is thus understood that when the device according to the present invention comprises a first and a second pair of antennas, the inter-antenna connection elements of a first pair form a connection bridge over one of the antennas of the second pair of antennas.

Advantageously, each antenna has at least two loops connected by an inter-module connection member to form at least two phase shifters positioned in at least two different planes.

Preferably, the different planes are substantially parallel to each other.

According to an advantageous embodiment of the present invention, each of the antennas is mounted on a flexible printed circuit and covered by an insulating flexible sheet of polymeric material. Preferably, the flexible plate comprises at least one hole for the passage of each inter-module connection element.

Note that in this configuration the inter-antenna connection elements merge with the inter module connection elements.

The invention also relates to a multi-phase shifter device for the protection of persons against the electromagnetic waves comprises at least two pairs of interleaved antennas, said antennas being the same or homothetic to each other, and electrically connected together at of their ends by two separate antennas inter-connecting elements. These antennas each comprise at least one spiral-shaped loop and are electrically insulated from each other except for said inter-antenna connection elements so as to form at least one phase shifter.

The present inventor has for the time being unable to explain the physical mechanisms involved in the invention which has just been submitted and which will be explained in more detail.

However, it seems that otherwise could not be verified by the present inventor, that each phase shifter of the invention does not include strictly an antenna (see for comparison, US-5627552, US- 3,582,951 and US-5,451,965) of the folded dipole type or hertz Yagi, or even part of the magnetic loop.

The present inventor has also, like all people of the profession concerned, encountered significant difficulties to perform SAR measurements to demonstrate the beneficial effect of the device.

However, the present inventor has succeeded in obtaining very conclusive results of tests to observe the heat shield effect of the multi-phase shifter according to the present invention.

Indeed, the first comparative tests with and without the device of the present invention have observed, with the device multi-phase shifter of the present invention and in particular using thermographic cameras, a very significant reduction of the heat generated by a phone laptop during prolonged use and transmitted to the user including at ear level and face against which the user presses the mobile phone.

Depending on the number of phase shifters and the number of pairs of antennas by phase shifter, the tests showed that the heat shielding effect of the present device reduces from 50 to 99% the heat from a mobile phone.

Without this has been explained physically, such a phenomenon of heat shield is also observed as 5 to 10 meters of this device.

Second comparative tests with and without the device according to the present invention have also demonstrated physiologically significant changes to red blood cells when using a mobile phone for a prolonged period was achieved without device according to the present invention.

More specifically, in a first phase, the tests performed consisted of one hand to take a blood sample of a non exposed to waves subject, and secondly to take a blood sample from a subject without the device according to the present invention and exposed to waves, for example a subject calling for more than five minutes.

In a second phase, the tests involved comparing two blood samples under the microscope: the first comparison revealed significant changes in red blood cells.

In a third phase of the testing, the subject subjected to the waves was equipped with a device according to the present invention. In this phase, a blood sample was taken, and the levy observed microscopically showed a return to normal red blood cells.

These second tests have thus demonstrated the many advantages afforded by the device according to the present invention for the protection of persons vis-à-vis electromagnetic waves.

Third comparative tests using a conventional standard telephone also proved very advantageous SAR measurements with the device of the present invention. The present inventor submits that the measurements made with the device BEST MSA 21 and this device offer even better results than those obtained with the prior device and disclosed in WO

2007/023220.

The advantages achieved by the improvements discussed above are highly significant and allow a significant reduction of adverse effects related to electromagnetic waves, including those emitted by mobile phones.

Brief description of figures

Other features and advantages of the present invention appear from the above description with reference to the appended Figures 1 to 6 which illustrate various alternative embodiments without any limiting nature and in which: - Figure 1 shows schematically a first variant embodiment of the device of the invention,

- Figure 2 schematically shows a second alternative embodiment of the device of the invention,

- Figure 3 schematically shows a third alternative embodiment of the device of the invention,

- Figure 4 shows schematically a fourth alternative embodiment of the device of the invention.

- Figure 5 shows schematically a fifth alternative embodiment of the device of the invention.

- Figure 6 shows schematically a sixth embodiment of the device of the invention.

detailed description of several embodiments

A multi-phase shifter according to a number of advantageous exemplary embodiments of the present invention will now be described in the following with reference with Figures 1-6.

Enable optimum protection of individuals vis-à-vis electromagnetic waves is an objective of the present invention, the underlying inventive concept of this application is in particular to improve the results obtained in the previous solution proposed in WO 2007/023220 by multiplying the number of antennas by phase shifter, and also by increasing the number of modules possible phase shift.

To achieve this goal, many difficulties such as for example the manufacture or isolation of these antennas must be defeated.

As shown in the figures, to achieve this goal, and artfully around the various difficulties associated with the design of existing models, the device 100 according to the present invention comprises at least one phase shifter 10, 20, 30, 40 each comprising at least two metal son, for example copper or copper alloy, the said at least two son consisting of at least one pair PI, P2, P3, P4 of antennas Ail, A12; A21, A22; A31, A32; A41, A42.

In each of the examples described herein, the antennas Ail, A12; A21

A22; A31, A32; A41, A42 are substantially identical or homothetic to each other, and are electrically interconnected at their ends by two antennas IA11 inter-connecting members, IA12; IA21, IA22; IA31, IA32; IA41, IA42.

In each of the examples described herein, the antennas Ail, A12; A21

A22; A31, A32; A41, A42 each comprise at least one loop substantially in a spiral shape and being electrically insulated from each other, with the exception of said IA11 inter-antenna connection elements, IA12; IA21, IA22; IA31, IA32; IA41, IA42, to form one or more phase shifter 10, 20, 30, 40 to reduce the thermal effect of electromagnetic waves.

Such a configuration is characteristic of the present invention. Advantageously, each antenna Ail, A12; A21, A22; A31, A32; A41, A42 may comprise at least two loops connected by an inter-module connection element IM'll, IM'12; IM'21, IM'22; IM'31, IM'32; IM'41, IM'42 to form at least two phase shift modules 10, 20, 30, 40 positioned in at least two different planes, here i being a positive integer corresponding to the number of loop least one.

Such a configuration is also characteristic of the present invention.

Specifically, in the following are presented in more detail each of the embodiments illustrated in the accompanying figures.

In the example described in Figure 1, the device 100 according to the present invention comprises a single pair PI Garlic antennas A12 and which are interconnected at their ends by two inter-antenna connection elements IA11 and IA12 to form a single phase shifter 10. this module 10 advantageously comprises two antennas which gives it relatively well.

Thanks to the inventive concept underlying the present invention, it is possible on the same principle to decline further advantageous variants that exhibit more satisfactory results in terms of reducing the thermal effect.

In the example described in Figure 2, the device 100 according to the present invention comprises a pair of antennas Ai PI l, A12.

In this example, each antenna comprises two loops; the loops are interconnected by an inter ¬ modules connecting member He ^ ll ^ 1 and IM, and Garlic antennas and A12 are connected together at their ends by two connecting elements inter IA11 and IA12 antennas.

This configuration allows to obtain a device 100 with a unique pair of IP Garlic antennas and A12 forming two phase shift modules 10 and 20.

In the example described in Figure 3, the device 100 according to the present invention comprises a pair of antennas Ai PI l, A12.

In this example, each antenna comprises four loops; the successive loops are interconnected by an inter-module connection element 1M U 1, IM 2; IM 2 11 IM 2 12;3 IM 11 IM 3 12, and the antenna Ai and A12 are connected together at their ends by two inter-antenna connection elements IA11 and IA12.

This configuration allows to obtain a device 100 with a unique PI antenna pair Ai and A12 forming the four phase shift modules 10, 20, 30 and 40.

In the example described in Figure 4, the device 100 according to the present invention comprises two pairs PI and P2 antennas Ail, A12 and A21, A22 which are connected together at their ends by two inter-antenna connection elements IA11, IA12, A21, A22 to form a single phase shifter 10.

In this example, the module 10 comprises two pairs of antennas. In the example described in Figure 5, the device 100 according to the present invention comprises four pairs PI, P2, P3 and P4 of antennas Ail, A12, A21, A22, A31, A32, and A41, A42. Each antenna consists of two loops, and the antennas of each pair are interconnected at their ends by IA11 inter-antenna connection elements, IA12; IA21, IA22; IA31, IA32; IA41, IA42.

In this variant, the ends of the antennas correspond to the ends of the loops so that the connecting elements interantennes IA11, IA12; IA21, IA22; IA31, IA32; IA41, IA42 correspond to the inter-module connection elements IM 1, IM 2; ^ L IM, IM 1 22; ^ L IM, IM 1 32; 11 41 ^, 11 ^ 42.

In this variant, the configuration makes it possible to form two phase-shift module 10 and 20 each comprising four antennas.

In the example described in Figure 6, the device 100 according to the present invention comprises two pairs PI and P2 antennas Ail, A12 and A21, A22 which are connected together at their ends by two inter-antenna connection elements IA11, IA12, A21, A22. Each antenna Ail, A12 and A21, A22 comprising four loops interconnected by inter-module connection elements ^ l IM, IM 2; IM 2 11 IM 2 12;3 IM 11 IM 3 12 to form four phase shift modules 10, 20, 30, 40 comprising two pairs of antennas.

In each example described herein, the antennas are electrically insulated from each other, for example by a plastic material such as polyester, with the exception of interantennes connection elements.

In Figures 2, 3, 5, and 6, the phase shifters 10, 20, 30 and 40 are placed in different planes parallel but could equally well be placed in different planes slightly inclined to each other .

In addition, the modules are substantially identical to each other, but could just as easily be substantially homothetic. In the latter case, one or the other of the modules would for example be slightly larger (on the order of a few percent) than either.

In each of the alternatives presented above, the device, after or before finalization can be placed in an insulating polymer resin which hardens.

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

In the case of emission of mid and high frequency waves, the device can be placed on the lower part of a transmitter such as an antenna for example. so one can place multiple devices around the transmitter in order to provide protection over the entire periphery.

In the case of lower frequency wave emission, the device can be used around electromagnetic field generators of high power (power plants, electric locomotives, ...) ■ More generally, the device may be installed in generators electromagnetic fields of low to medium power, for example of the electrical equipment (large or small), an electric heater, a TV (the deflection coils and the THT transformers being in particular electromagnetic field generators), a digital alarm clock, a mobile phone. Also, the device can be used in residential areas near disturbance from the floor (the long fault, water source, etc.) which are also liable to generate harmful electromagnetic fields.

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

All of the above description is of course given by way of example and not limitation of the invention. Is noted in particular that the various modules, substantially homothetic or substantially identical with respect to each other, can be placed in the same plane. They may possibly be placed in different planes, parallel or slightly inclined with respect to each other.

On the other hand, the length of the different connection elements is not exhaustive of the invention. It is variable, including adjusted depending on the chosen configuration and performance objectives in terms of protection. In addition, different connecting elements are presented above as being of the same length, but are not, however, limit the invention. Indeed, they might as well be of different lengths, one being slightly larger than the other.

Finally, the precise shape of the loops does not limit the invention, and can result for example from other aesthetic choice than a purely circular shape (elliptical, heart, or other ...) - it should be observed that this detailed description refers to particular embodiments of the present invention, but in no case this description is of any character limiting the object of the invention; rather, it aims to remove any possible inaccuracy or misinterpretation of the following claims.

Claims

1. Multi-phase shifter device (100) for the protection of persons against electromagnetic waves comprising at least one pair (PI, P2, P3, P4) of antennas (Ail, A12; A21, A22; A31, A32;
A41, A42) the same or homothetic to each other, and electrically interconnected at their ends by two separate antennas inter-connection elements (IA11, IA12, IA21, IA22, IA31, IA32, IA41, IA42 ), these said antennas (Ail, A12; A21, A22; A31, A32; A41, A42), each comprising at least one spiral-shaped loop and being electrically isolated from each other except for said elements interantennes connection (IA11, IA12, IA21, IA22, IA31, IA32, IA41, IA42) so as to form at least one phase shifter (10, 20, 30, 40).
2. Multi-phase shifter device (100) according to claim 1, characterized in that it comprises at least two pairs (PI, P2, P3, P4) of antennas (Ail, A12; A21, A22; A31, A32; A41, A42) overlapping with each other.
3. multi-phase shifter device (100) according to claim 2, characterized in that each antenna (Ail, A12; A21, A22; A31, A32; A41, A42) includes at least two loops connected together by a connecting element inter-module (IM'll, IM'12; IM'21,
I IM 22; 11 ^ 31, IM i 32; IM'41, IM i 42; i being a positive integer corresponding to the number of loop least one) to form at least two phase shifters (10, 20, 30, 40) positioned in at least two different planes.
4. Multi-phase shifter device (100) according to claim 3, characterized in that said different planes are parallel to each other.
5. Multi-phase shifter device (100) according to any one of claims 1 to 4, characterized in that each of said antennas (IA11, IA12, IA21, IA22, IA31, IA32, IA41, IA42) is mounted on a printed circuit flexible and covered by an insulating flexible sheet of polymeric material.
6. Multi-phase shifter device (100) according to claim 5, characterized in that the flexible plate comprises at least one hole for the passage of each inter-module connection element (IM'll, 11 ^ 12; IM'21, IM 22 i; 11 ^ 31, 32 IM i; IM'41, j IM 42).
7. Multi-phase shifter device (100) for the protection of persons against electromagnetic waves comprising at least two pairs (PI, P2, P3, P4) of antennas (Ail, A12; A21, A22; A31, A32; A41, A42) interleaved, said antennas being the same or homothetic to each other, and electrically interconnected at their ends by two separate antennas inter-connection elements (IA11, IA12, IA21, IA22, IA31, IA32; IA41, IA42), these antennas (Ail, A12; A21, A22; A31, A32; A41, A42), each comprising at least one spiral-shaped loop and being electrically isolated from each other except for said inter-antenna connection elements (IA11, IA12, IA21, IA22, IA31, IA32, IA41, IA42) so as to form at least one phase shifter (10, 20, 30, 40).
8. Multi-phase shifter device (100) according to claim 7, characterized in that each antenna (Ail, A12; A21, A22; A31, A32; A41, A42) includes at least two loops connected together by a connecting element inter-module (IM'll, IM'12; IM'21, IM i 22; 11 ^ 31, 32 IM i; IM'41, IM 42 i; i being a positive integer corresponding to the number of loop least one) 5 to form at least two phase shifters (10, 20, 30, 40) positioned in at least two different planes.
9. Device multi-phase shifter (100) according to claim 8, characterized in that said different planes are parallel io each other.
10. Multi-phase shifter device (100) according to any one of claims 7 to 9, characterized in that each of the antennas (IA11, IA12, IA21, IA22, IA31, IA32, IA41, IA42) is mounted on
A flexible printed circuit 15 and covered by an insulating flexible sheet of polymeric material.
11. Multi-phase shifter device (100) according to claim 10, characterized in that the flexible plate comprises at least one hole
20 for the passage of each inter-module connection element
(IM'll, ΙΜ 12;! ^ 11 21 IM 22 i; 11 ^ 31, 32 IM i; IM'41, IM 2).
PCT/FR2012/052022 2011-09-12 2012-09-11 Multi-phase-shifter device for the protection of persons against electromagnetic waves WO2013038099A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1158086A FR2980045B1 (en) 2011-09-12 2011-09-12 Multi-phase shifter device for the protection of persons against the electromagnetic waves
FR1158086 2011-09-12

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014168465A1 (en) * 2013-04-09 2014-10-16 Quezada Zambrano Alejandro Device for capturing and attenuating the electromagnetic radiation emitted by electronic apparatuses

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Publication number Priority date Publication date Assignee Title
US3582951A (en) 1968-06-10 1971-06-01 New Tronics Corp Helmet antenna
US4368472A (en) * 1980-10-08 1983-01-11 Dosimeter Corporation Of America Microwave dosimeter
US5451965A (en) 1992-07-28 1995-09-19 Mitsubishi Denki Kabushiki Kaisha Flexible antenna for a personal communications device
US5627552A (en) 1995-05-05 1997-05-06 Eta Sa Fabriques D'ebauches Antenna structure for use in a timepiece
US6011523A (en) * 1994-06-06 2000-01-04 Pobo; Franz Device for controlling oscillating electromagnetic fields, in particular radio waves
FR2781088A1 (en) 1998-07-08 2000-01-14 Roland Wehrlen Passive out-of-phase or phase shifted antenna for mobile phone
JP2001284881A (en) * 2000-03-30 2001-10-12 Seiko Epson Corp Electromagnetic wave shield element and electromagnetic wave shield using the same
FR2826784A1 (en) 2001-07-02 2003-01-03 Abel Franco electromagnetic protection antenna for mobile transmitter
WO2003043122A1 (en) 2001-11-13 2003-05-22 University Of Sheffield Protection against em radiations
WO2005031918A1 (en) 2003-09-23 2005-04-07 Garcia Abel Franco Device for protecting persons against electromagnetic waves
WO2007023220A1 (en) 2005-08-24 2007-03-01 Garcia Abel Franco Multiple phase shifter for protecting individuals against electromagnetic waves
WO2007068108A1 (en) * 2005-12-13 2007-06-21 Zbigniew Malecki System and method for excluding electromagnetic waves from a protected region

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582951A (en) 1968-06-10 1971-06-01 New Tronics Corp Helmet antenna
US4368472A (en) * 1980-10-08 1983-01-11 Dosimeter Corporation Of America Microwave dosimeter
US5451965A (en) 1992-07-28 1995-09-19 Mitsubishi Denki Kabushiki Kaisha Flexible antenna for a personal communications device
US6011523A (en) * 1994-06-06 2000-01-04 Pobo; Franz Device for controlling oscillating electromagnetic fields, in particular radio waves
US5627552A (en) 1995-05-05 1997-05-06 Eta Sa Fabriques D'ebauches Antenna structure for use in a timepiece
FR2781088A1 (en) 1998-07-08 2000-01-14 Roland Wehrlen Passive out-of-phase or phase shifted antenna for mobile phone
JP2001284881A (en) * 2000-03-30 2001-10-12 Seiko Epson Corp Electromagnetic wave shield element and electromagnetic wave shield using the same
FR2826784A1 (en) 2001-07-02 2003-01-03 Abel Franco electromagnetic protection antenna for mobile transmitter
WO2003005487A1 (en) 2001-07-02 2003-01-16 Abel Franco Electromagnetic protection antenna for portable transmitter
WO2003043122A1 (en) 2001-11-13 2003-05-22 University Of Sheffield Protection against em radiations
WO2005031918A1 (en) 2003-09-23 2005-04-07 Garcia Abel Franco Device for protecting persons against electromagnetic waves
WO2007023220A1 (en) 2005-08-24 2007-03-01 Garcia Abel Franco Multiple phase shifter for protecting individuals against electromagnetic waves
WO2007068108A1 (en) * 2005-12-13 2007-06-21 Zbigniew Malecki System and method for excluding electromagnetic waves from a protected region

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FR2980045A1 (en) 2013-03-15 application

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