JP2007006428A - Electromagnetic wave propagation instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnetic wave propagation instrument having a beltlike profile which is connected to an external device and an communication element and propagates electromagnetic wave. <P>SOLUTION: The electromagnetic wave propagation instrument (communication apparatus) 100 is provided with a first strip conductor portion 101 and a second strip conductor portion 102. The second strip conductor portion 102 is arranged substantially parallel to the first strip conductor portion 101 and has a region not covered with the first strip conductor portion 101 when viewed from the first strip conductor portion 101. The instrument propagates electromagnetic wave generated by variance of voltage between a first electrode which approaches or is in contact with the first strip conductor portion 101 and a second electrode which approaches or is in contact with the not covered region and approaches the second strip conductor portion 102. The instrument propagates the electromagnetic wave in a region enclosed by the first strip conductor portion 101 and the second strip conductor portion 102. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electromagnetic wave propagation device having a band shape that propagates an electromagnetic wave connected to an external device or a communication element.

Conventionally, a sheet shape in which a plurality of communication elements are embedded (a cloth shape, a paper shape, a foil shape, a plate shape, a film shape, a film shape, a mesh shape, etc., having a wide surface and a small thickness). The technology relating to the communication device has been proposed by the inventors of the present application. For example, in the following documents, a communication in which a plurality of communication elements embedded in a sheet-like member (hereinafter referred to as “sheet-like body”) transmits signals by relaying signals without forming individual wirings. A device has been proposed.
Japanese Patent Laid-Open No. 2004-007448

  Here, in the technique disclosed in [Patent Document 1], each communication element is arranged at the apex of a lattice-like, triangular, or honeycomb-like figure on the surface of the sheet-like body. Each communication element communicates only with other communication elements arranged in the vicinity by utilizing the fact that the potential change generated by the communication element is strong in the vicinity and attenuated and propagated in the distance.

  By sequentially transmitting the signals between the communication elements by this local communication, the signals are transmitted to the target communication element. The plurality of communication elements are divided into hierarchies by the management function, and route data is set in each hierarchy, so that signals can be efficiently transmitted to the final target communication element.

  There is a case where it is desired to adopt a band shape (belt shape, band shape) as one shape of such a sheet-like body. In addition, there is a strong demand for new technical proposals for performing communication by propagating electromagnetic waves used for communication between various communication elements and between external communication devices in such a band shape.

  The present invention is to meet such a demand, and an object thereof is to provide an electromagnetic wave propagation device having a belt-like shape that is connected to an external device or a communication element and propagates an electromagnetic wave.

  In order to achieve the above object, the following invention is disclosed in accordance with the principle of the present invention.

  An electromagnetic wave propagation device according to a first aspect of the present invention includes a first strip conductor portion and a second strip conductor portion, and is configured as follows.

  That is, the second strip conductor portion is disposed substantially parallel to the first strip conductor portion and has a region that is not covered by the first strip conductor portion when viewed from the first strip conductor portion side.

  And between the 1st electrode which adjoins or contacts the 1st beltlike conductor part, and the 2nd electrode which adjoins or contacts the uncovered field and is near the 2nd beltlike conductor part An electromagnetic wave generated by a change in voltage is propagated in a region sandwiched between the first strip conductor portion and the second strip conductor portion.

  Note that the “voltage” is obtained by integrating the electric field along the lines of electric force. If the electrode is smaller than the wavelength, it is almost constant regardless of the location.

  In addition, the electromagnetic wave propagation device of the present invention has the width of the first band-shaped conductor portion narrower than the width of the second band-shaped conductor portion, so that the second band-shaped conductor portion is viewed from the first band-shaped conductor portion side. Sometimes, there is a region that is not covered by the first strip conductor portion, and it is between the edge of the first strip conductor portion and the edge of the second strip conductor portion when viewed from the first strip conductor portion side. Can be configured to be equal to or greater than the distance between the surface of the first strip-shaped conductor portion and the surface of the second strip-shaped conductor portion.

  Further, in the electromagnetic wave propagation device of the present invention, the first strip conductor portion has a plurality of apertures, so that the second strip conductor portion is first when viewed from the first strip conductor portion side. The distance between the edge of the first band-shaped conductor part and the edge of the second band-shaped conductor part when viewed from the first band-shaped conductor part side is The distance between the surface of the first strip-shaped conductor portion and the surface of the second strip-shaped conductor portion may be greater than or equal to the distance.

  Further, the electromagnetic wave propagation device of the present invention has the first strip conductor portion divided into a plurality of thin strips, so that the second strip conductor portion is viewed from the first strip conductor portion side. The distance between the edge of the first band-shaped conductor part and the edge of the second band-shaped conductor part when viewed from the first band-shaped conductor part side has an area that is not covered by the first band-shaped conductor part. The distance between the surface of the first strip-shaped conductor portion and the surface of the second strip-shaped conductor portion can be greater than or equal to the distance.

  An electromagnetic wave propagation device of the present invention includes a first electromagnetic wave propagation device that is the above-described electromagnetic wave propagation device, and a second electromagnetic wave propagation device that is the above-described electromagnetic wave propagation device. The first electromagnetic wave propagation device and the second electromagnetic wave propagation device are arranged close to each other so that the first belt-like conductor portion and the first belt-like conductor portion of the second electromagnetic wave propagation device face each other. can do.

  ADVANTAGE OF THE INVENTION According to this invention, the electromagnetic wave propagation apparatus which has a strip | belt shape which is connected to an external apparatus and a communication element, and propagates electromagnetic waves can be provided.

  Embodiments of the present invention will be described below. The embodiments described below are for explanation, and do not limit the scope of the present invention. Therefore, those skilled in the art can employ embodiments in which each of these elements or all of the elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.

  In the following, an embodiment of a sheet-like communication device, which is a basic technology of a belt-like electromagnetic wave propagation device, will be described first, and then a belt-like electromagnetic wave propagation device which is a kind of sheet shape will be described in detail.

(Basic technology)
1 and 2 are explanatory diagrams for explaining a communication device according to an embodiment related to the present invention. FIG. 1 is a perspective external view of a communication device, and FIG. 2 is a cross-sectional view of the communication device. Hereinafter, a description will be given with reference to FIG.

  In the communication apparatus 100 according to the present embodiment, two first conductor layers 101 that are sheet-like (foil-like and film-like) conductors and a second conductor layer 102 are arranged in parallel and opposed to each other. The first conductor layer 101 is provided with a plurality of holes 103.

  Further, a protrusion 104 is arranged on the second conductor layer 102 so as to penetrate each of the holes 103.

  Communication element 105 is coupled to the first conductor layer in the vicinity of hole 103. Further, it is coupled to the second conductor layer 102 through the protrusion 104.

  The communication elements 105 communicate with each other by propagating electromagnetic waves between the first conductor layer 101 and the second conductor layer 102.

  Each communication element 105 is directly coupled or capacitively coupled to the first conductor layer 101 and the second conductor layer 102.

  Here, when a certain communication element 105 supplies a cylindrically symmetric current between the first conductor layer 101 and the second conductor layer 102, an electromagnetic wave is propagated between them, and the influence is exerted on the other communication elements 105. As a result, the signal can be detected.

  On the other hand, an insulating layer 106 filled with an insulator is provided between the first conductor layer 101 and the second conductor layer 102. The insulating layer 106 insulates them. Hereinafter, a configuration including the first conductor layer 101, the second conductor layer 102, and the insulating layer 106 is referred to as a “communication layer”.

  This is not necessary when the communication element 105 is supplied with power from other sources or has a built-in power supply, but a constant voltage is applied between the first conductor layer 101 and the second conductor layer 102. As a result, the power of the operation of the communication element 105 can be supplied.

According to the numerical calculation and experiment on the behavior of the cylindrical electromagnetic field, the conductivity (reciprocal of resistivity) σ of the first conductor layer 101 and the second conductor layer 102, the dielectric constant ε between them, the first conductor layer 101 And the distance d between the facing surfaces of the second conductor layer 102 and the angular frequency ω of the signal, the parameters representing the attenuation of the electromagnetic field are as follows:
η = d ((2σ) / (εω)) ^1/2
Can think. This represents a distance at which the amplitude of the signal becomes 1 / e times when signal scattering due to the presence of the hole 103 and the communication element 105 is not considered. Therefore, it is necessary to set the configuration in consideration of this parameter depending on the application field of the communication apparatus 100.

  FIG. 2 is a cross-sectional view illustrating an example of a state in which the first conductor layer 101 and the second conductor layer 102 of the communication device 100 are coupled to the communication element 105.

  As shown in the figure, the communication element 105 has two electrodes 201 and 202. The electrode 201 is directly connected to the peripheral portion of the hole 103 of the first conductor layer 101. The electrode 202 is directly connected to the protrusion 104 of the second conductor layer 102. A voltage is applied between the first conductor layer 101 and the second conductor layer 102, and the communication element 105 operates upon receiving power supply by this voltage. Note that an insulator provided with an opening may be disposed above the first conductor layer 101 (a surface not facing the second conductor layer 102) so that the communication element 105 is fitted therein.

  FIG. 3 is a cross-sectional view similar to the above but showing an example in which the shape of the protrusion 104 is changed.

  In the example shown in this figure, an opening is provided so as to curve from the lower surface of the second conductor layer 102 toward the upper side of the first conductor layer 101, and a portion corresponding to the hole 103 of the first conductor layer 101. The periphery of is also curved upward. A curved portion of the second conductor layer 102 corresponds to the protrusion 104. An insulating layer 106 is disposed between the two. For example, all of these have a shape in which a hole is made by applying a force to a metal plate with a cone, and when viewed as a whole, these are in close contact with each other.

  The electrode 201 has a cap shape that covers this curve, and is directly connected to the first conductor layer 101. The electrode 202 is directly connected to the inside of the protrusion of the second conductor layer 102.

  The contact point between the electrode 201 and the electrode 202 is such that the first conductor layer 101 and the second conductor layer 102 are sandwiched between the inside and the outside of the curve by a spring, thereby ensuring the connection.

  FIG. 4 is a cross-sectional view illustrating another example in which the first conductor layer 101 and the second conductor layer 102 of the communication device 100 are coupled to the communication element 105.

  As shown in the figure, an insulator 301 is disposed above the first conductor layer 101 (a surface not facing the second conductor layer 102). Accordingly, the electrode 201 of the communication element 105 forms a type of capacitor with the first conductor layer 101, and the electrode 202 forms a type of capacitor with the second conductor layer 102, thereby being capacitively coupled. In the case of capacitive coupling, the communication element 105 needs to be configured such that it has a power source.

  FIG. 5 is a cross-sectional view illustrating another example in which the first conductor layer 101 and the second conductor layer 102 of the communication device 100 are coupled to the communication element 105. In this example, instead of providing the protrusion 104 on the second conductor layer 102, the shape of the communication element 105 plays a role of “protrusion”.

  As shown in FIG. 4A, in this example, the insulator 301 is disposed so as to cover the second conductor layer 102 facing the hole 103 and above the first conductor layer 101. On the other hand, the communication element 105 is shaped to fit into the hole 103 covered with the insulator 301.

  The hole 103 has a circular shape, the electrode 201 has a ring shape, and the electrode 202 has a circular shape. When fitted, these centers coincide. This figure (b) shows the state of the lower surface of the communication element 105 and the electrodes 201 and 202.

  It is to be noted that by providing a connector having the same shape as the communication element 105 described so far and having the electrodes 201 and 202, the communication element 105 connected to the external device and the communication device 100 (the same connector or the like) It is possible to communicate with other external devices using the.

  FIG. 6 is an explanatory diagram showing a schematic configuration of the communication element 105 that receives power supply. However, the same configuration can be adopted even when power is not supplied. Hereinafter, a description will be given with reference to FIG.

  As shown in the figure, the communication element 105 includes a positive terminal 501, a negative terminal 502, a resistor 503, a diode 504, a capacitor 505, a transmission circuit 506, a reception circuit 507, and a control circuit 508. Note that the diode 504 may be omitted depending on the configuration setting.

  The capacitor 505 is charged through the resistor 503. The diode 504 enters a state in which a current flows when the power supply potential VDD in the communication element 105 falls below the inter-terminal voltage OUT, and is quickly charged. As long as OUT <VDD, the diode 504 is in a high-impedance state, so that transmission of signals by the transmission circuit 506 is not hindered. Operating power is supplied from the capacitor 505 to the transmission circuit 506, the reception circuit 507, and the control circuit 508.

When the protrusion 104 has a cylindrical shape and the radius thereof is sufficiently smaller than the wavelength of the electromagnetic wave of the signal used for communication, the radiation impedance Z when the communication layer is viewed from the communication element 105 is inductive. ,
Z = α + jβ (α> 0, β> 0)
It has a shape like

  The radiation impedance Z is finite. For example, when 2.5 GHz band communication is performed, the layer interval is about 1 mm, and the protrusion radius is about several mm, α is about 1Ω to 10Ω. On the other hand, the resistance of the communication layer can be regarded as zero in terms of direct current. In terms of direct current, power can be supplied with sufficiently low impedance. In this way, by using the first conductor layer 101 and the second conductor layer 102, signal transmission and power supply can be performed.

  The positive terminal 501 and the negative terminal 502 are connected to either the electrode 201 or the electrode 202. In the case of performing capacitive coupling (when power is not supplied from the first conductor layer 101 and the second conductor layer 102), the resistor 503 and the diode 504 may be omitted and the capacitor 505 may be replaced with a power source.

  As the control circuit 508, various information processing devices such as a more general logic circuit and a small computer can be adopted. The control circuit 508 controls the reception circuit 507 and the transmission circuit 506, communicates with the adjacent communication element 105, and forms a network. For such a communication control method, the technique disclosed in the above [Patent Document 1] can be applied, and the technique described later can be adopted.

  FIG. 7 is a circuit diagram showing a schematic configuration of the transmission circuit of the communication element in the present embodiment. Hereinafter, a description will be given with reference to FIG.

  As shown in the figure, the transmission circuit 506 includes a pMOS transistor 601, a diode 602, and an nMOS transistor 603.

Control by the control circuit 508 is performed by changing the gate voltages of the pMOS transistor 601 and the nMOS transistor 603.
(1) When the control circuit 508 does not emit a signal, the gate of the nMOS transistor 603 is set to the ground (VSS) potential in the chip, and the gate of the pMOS transistor 601 is set to the VDD potential. In this case, the impedance between the source and the drain is sufficiently high in both cases, and OUT is substantially equal to the VDD potential.
(2) When the control circuit 508 applies H (High) potential to the gates of both the nMOS transistor 603 and the pMOS transistor 601, OUT becomes L (Low) potential.
(3) When the control circuit 508 applies the L potential to the gates of both the nMOS transistor 603 and the pMOS transistor 601, OUT becomes the H potential.

  By changing the potential in this way, an electromagnetic wave is generated between the first conductor layer 101 and the second conductor layer 102 to transmit a signal.

  A diode 602 sandwiched between the nMOS transistor 603 and the pMOS transistor 601 is inserted to adjust the amplitude of the output voltage. If both are short-circuited without providing the diode 602, the H level of OUT becomes the power supply potential and the L level becomes the ground potential in the chip. However, if the diode 602 is inserted, the forward voltage drop Therefore, the L level potential is increased and power consumption can be saved.

  Note that the resistance component α of the radiation impedance Z converges to a constant value when the radius of the protrusion 104 becomes smaller than a certain value.

  On the other hand, the reactance component β of the radiation impedance Z diverges and increases as the radius of the protrusion 104 decreases.

  For this reason, when the protrusion 104 is small, the voltage change energy may not be effectively converted into the wave energy of the electromagnetic wave if it is driven as it is.

  At this time, a capacitor having an impedance for canceling β at the output is connected in series between the positive terminal 501 and the transmission circuit 506 or between the negative terminal 502 and the transmission circuit 506.

  Then, the load of the communication layer viewed from the transmission circuit 506 can be a pure resistance. In this case, the maximum energy can be transmitted with the minimum voltage amplitude, and the energy consumed by the load is directly converted into wave energy of electromagnetic waves.

  The optimum capacitance Copt of the capacitor connected in series between the transmission circuit 506 and either the positive terminal 501 or the negative terminal 502 is determined by numerical calculation or experiment. In some cases, depending on the circuit configuration and shape, the communication layer can be made a pure resistance as described above by connecting an inductance. Also in this case, the value may be obtained by numerical calculation or experiment.

In the communication layer, current and electromagnetic field exist only on the surface on the opposite side of the conductor, and the depth is the skin depth (the depth at which the current amplitude is 1 / e times)
ζ = (2 / (μσω)) ^1/2
Given in. Where μ is the magnetic permeability of the material, σ is the conductivity, and ω is the angular frequency.

  Therefore, if only the vicinity of the surface of the communication layer is replaced with a material having a low conductivity, and a material having a sufficiently high conductivity is used on the back surface, the signal is attenuated and the DC power supply has a sufficiently low communication layer resistance. Can be done through.

  FIG. 8 is a circuit diagram showing a schematic configuration of the receiving circuit of the communication element in the present embodiment. Hereinafter, a description will be given with reference to FIG.

  As shown in the figure, the receiving circuit 507 includes a resistor (r1) 701, a resistor (r2) 702, and a comparator 703. The reception circuit 507 sets a threshold value indicating whether the change in the received potential is H or L depending on the voltage division ratio between the resistors 701 and 702.

  In addition, the resistance component of the impedance between the input terminal and VSS determined by the input impedance of the comparator 703 should be approximately the same as the resistance component α of the radiation impedance Z from the viewpoint of maximizing the energy absorbed by the receiving circuit 507. Is desirable. Similarly to the case of the transmission circuit 506, a capacitor that cancels the reactance component β of the communication layer is connected in series between the positive terminal 501 and the reception circuit 507. As a result, the power flowing into the receiving circuit 507 is maximized.

  The optimum capacity of the capacitor at this time is Copt if the input circuit routing of the transmission circuit 506 and the reception circuit 507 is the same, but it is actually obtained by numerical calculation or experiment.

  When the communication element 105 and the first conductor layer 101 and the second conductor layer 102 are capacitively coupled, the above-described “series-connected capacitors” are inevitably formed.

  Therefore, in such a case, the communication layer may be made a pure resistance as described above by connecting the inductances in series instead of further connecting the capacitors in series. Also in this case, the value may be obtained by numerical calculation or experiment.

  Thus, according to the present embodiment, it is possible to provide a sheet-like communication device 100 in which a plurality of communication elements 105 communicate with each other.

  In general, in communication using electromagnetic waves, it is often necessary to eliminate the influence of reflection. This is because reflections cause multipath problems and degrade the signal. The same applies to the present embodiment. Therefore, in the following, measures for eliminating the influence of reflection will be described.

  As described above, according to the parameter η representing the attenuation of the electromagnetic field, when the conductivity σ of the first conductor layer 101 or the second conductor layer 102 is decreased (the resistivity is increased), the reach of the electromagnetic wave is shortened. . Therefore, in a place where reflection is likely to occur, reflection can be suppressed by providing a resistance layer in order to reduce the electrical conductivity σ of the first conductor layer 101 and the second conductor layer 102.

  In the following, a case where a resistor is used as the electromagnetic wave absorber will be described, but the same effect can be expected if a material having a large dielectric loss is used.

  FIG. 9 shows an embodiment in which a resistance layer is provided with respect to the embodiment in FIG. In this figure (a), the resistance layer 801 is connected to the first conductor layer 101, and the insulating layer 106 is provided between the resistance layer 801 and the second conductor layer 102. In FIG. 6B, conversely, the resistance layer 801 is connected to the second conductor layer 102, and the insulating layer 106 is provided between the resistance layer 801 and the first conductor layer 101. Similarly, in other forms, the resistance layer 801 is provided to adjust the reach distance of the electromagnetic wave.

  FIG. 10 is an explanatory diagram for explaining a portion where it is better to provide the resistance layer 801 for the communication device 100 having a special shape.

  The sheet-like communication device 100 shown in the figure has a shape that connects two large islands with a bridge. In this figure, the portion indicated by the mesh is a portion where the resistance layer 801 is to be disposed, and the conductivity σ remains high in other portions.

  First, reflection is likely to occur at the edge of the shape or the bent portion of the region. Therefore, a resistance layer is disposed in such a place.

  Moreover, in the example of this figure, the density of arrangement | positioning of the hole 103 (it describes with the circle | round | yen in the figure) is also different. Therefore, in order to avoid collision of unnecessary signals even in places where the communication elements 105 can be disposed at high density, the resistance layer 801 is disposed to shorten the reach of electromagnetic waves.

  As a method for selecting such a region where the resistance layer 801 is to be provided, the following may be considered. That is, this is a method in which a simulation experiment or numerical analysis in the absence of the resistance layer 801 is performed to check the degree of reflection in each region, and a region whose degree is higher than a predetermined threshold is selected. In addition, the number of holes 103 per unit area may be examined, and a region where this is higher than a predetermined threshold value may be selected.

  In this manner, by providing the resistance layer 801, it is possible to prevent the influence of reflection and signal collision.

  The basic configuration is the same as that of the above embodiment, and the protrusion 104 and the communication element 105 can be integrally configured. FIG. 11 shows a cross-sectional view of a communication apparatus according to such an embodiment.

  As shown in this figure, in the communication device 100, the first conductor layer 101 and the second conductor layer 102 are arranged such that the floor and ceiling are the floor and the communication element 105 is the pillar. An insulating layer 106 and a resistance layer 801 depending on the part are prepared. In this example, the resistance layer 801 is disposed so as to be in contact with the second conductor layer 102, but the location where the resistance layer 801 is disposed can be changed in the same manner as in the above embodiment. In the case of this example, the communication element 105 is supplied with power from the first conductor layer 101 and the second conductor layer 102.

  Even in such an aspect, it is possible to realize an electromagnetic wave propagation device having a band shape that is connected to an external device or a communication element and propagates an electromagnetic wave.

  In addition, a five-layer structure such as the first conductor layer 101, the insulating layer 106, the resistance layer 801, the insulating layer 106, and the second conductor layer 102 may be employed. Even when such a configuration is adopted, an effect of reducing σ can be obtained, while a short circuit between the first conductor layer 101 and the second conductor layer 102 can be prevented.

  Further, a structure in which the resistance layer is disposed on both surfaces of the conductor layers 101 and 102, that is, a five-layer structure such as the first conductor layer 101, the resistance layer 801, the insulating layer 106, the resistance layer 801, and the second conductor layer 102. Even if is adopted, the same effect can be obtained.

  FIG. 12 is a cross-sectional view showing the shape of the vicinity of the hole in another embodiment when the communication element is connected in contact with the first conductor layer and the second conductor layer.

  In the example shown in FIG. 5A, a pin-like shape is adopted as the electrode 202, and a recess is provided so that the pin portion of the electrode 202 can be inserted from the tip of the protrusion 104 into the inside.

  In the example shown in FIG. 7B, the protrusion 104 is not extended from the second conductor layer 102, but a protrusion shape is provided from the communication element 105 to the second conductor layer 101, and the electrode 202 is provided at the tip thereof. The connection is made. The first conductor layer 101 and the insulating layer 106 are provided with holes that fit into the protruding shape of the communication element 105.

  In the example shown in this figure (c), the electrode 202 itself is used as the protruding shape in this figure (b).

  Also in these examples, the electrodes 202 and 201 may be concentric. The electrode 201 may be of a type that is inserted into the first conductor layer 101 like a BNC connector.

  As described above, such various shapes can be adopted for the communication element 105 including the connector to the external device and the configuration fitted thereto.

  Hereinafter, another embodiment of the communication device 100 and the connector when a connector to an external device is adopted as the communication element 105 will be described in more detail.

  FIG. 13 is an explanatory diagram showing a cross-sectional state of the communication device and the connector to the external device. Hereinafter, a description will be given with reference to FIG.

  The communication device 100 shown in this figure has a circular opening 901 in the first conductor layer 101. The opening 901 typically has a circular shape when viewed from this figure, but other shapes can also be adopted.

  An insulating layer 106 is provided between the first conductor layer 101 and the second conductor layer 102, and the insulating layer 106 also fills the opening 901.

  Furthermore, the insulator 301 is disposed so as to cover the surface of the first conductor layer 101 and the insulating layer 106 filled in the opening 901. Note that the insulator 301 is additional, and communication described below is possible even if the surface of the first conductor layer 101 is exposed. In addition, the insulator 301 can be formed by filling the insulating layer 106 to the extent that it overflows from and covers the first conductor layer 101.

  On the other hand, the connector 951 to the external device functions as the communication element 105, but has an axially symmetric shape and is connected to the external device by the coaxial cable 952.

  The core wire of the coaxial cable 952 is connected to the inner good conductor 953, and the covered wire of the coaxial cable 952 is connected to the outer good conductor 954. In the example shown in this figure, the outer good conductor 954 has a funnel-like shape, and the inner good conductor 953 has a conical shape.

  In addition, a dielectric is filled between the inner good conductor 953 and the outer good conductor 954, but this may be a simple gap.

  In place of the inner good conductor 953 and the outer good conductor 954, the dielectric constant is the insulator 301 and the insulating layer 106, and the dielectric between the inner good conductor 953 and the outer good conductor 954 (which may be vacuum or air). Communication is also possible by using significantly different materials.

  Now, the outer good conductor 954 is sized such that it can completely cover the opening 901 of the first conductor layer 101.

  When the connector 951 and the communication device 100 are connected, it is sufficient to arrange the outer good conductor 954 so as to completely cover the opening 901 of the first conductor layer 101, even if the respective center axes are slightly shifted. no problem.

  On the other hand, it is desirable that the size of the inner good conductor 953 is smaller than the opening 901. The inner good conductor 953 may be a simple core, but it is desirable that the inner good conductor 953 has a shape in which the tip is widened, such as a cone or a disk shape shown in the figure.

  Although not shown in the figure, the loss of re-transmission of electromagnetic waves is smaller when the corners of each component are rounded.

  Furthermore, the inner good conductor 953 is desirably smaller than the wavelength of the electromagnetic wave propagating through the insulating layer 106, but communication is possible even when the inner good conductor 953 is larger than this.

  In order to perform such connector positioning, a figure or a pattern is drawn on the surface of the communication device 100, or magnets are arranged so as to attract each other on both the connector and the communication device 100, so that they are aligned as much as possible. You may make it contact.

  In this figure, the inner size of the outer good conductor 954 is smaller than the opening 901, but it is sufficient if the first conductor layer 101 and the outer good conductor 954 can be opposed to each other.

  Detailed numerical examples are given below. FIG. 14 is an explanatory diagram showing a state of the connector and the communication device including the impedance matching device.

  In the example shown in this figure, a 2.5 GHz band (air wavelength 12 cm) is adopted as the electromagnetic wave, the diameter of the opening 901 is 1 cm, the thickness between the first conductor layer 101 and the second conductor layer 102 is 1 mm, The relative dielectric constant of the insulating layer 106 is set to 3.

  Regarding the shape of the connector 951, a disk shape having a thickness of 2 mm is adopted as the outer good conductor 954, and a conical shape having a bottom diameter of 5 mm is adopted as the inner good conductor 953. The gap between the inner good conductor 953 and the outer good conductor 954 is about 1 mm.

  An impedance matching device 961 is inserted between the 50Ω coaxial cable 952 and the inner good conductor 953 and the outer good conductor 954.

The impedance when the communication device 100 is viewed from the end of the connector 951 side of the impedance matching device 961 with the above specifications is about R ₀ = 5Ω, but in this case, for connection with the coaxial cable 952 of R = 50Ω. It is necessary to match the impedance.

In the example shown in this figure, as the impedance matching unit 961, a system in which a cable having characteristic impedance r = (R · R ₀ ) ^0.5 is inserted for ¼ wavelength is adopted. In addition, the path length and impedance may be similarly adjusted using a microstrip line other than the coaxial cable.

  Note that at the end of the coaxial cable 951 on the communication device 100 side (the end of the communication device 100 side where the impedance matching device 961 is inserted), the impedance when viewing the communication device 100 and the characteristic impedance of the coaxial cable are almost equal. If they are set to match, the impedance matching unit 961 is not necessary.

  On the other hand, if the impedance matching device 961 converts the impedance to a larger impedance so that a high voltage can be obtained on the coaxial cable 952 side, when the power supply by the microwave is received by the rectifier circuit using the diode, the diode The operating voltage can be exceeded, and it is suitable for receiving power supply.

  Further, since the impedance between the inner good conductor 953 and the outer good conductor 954 when viewed from the communication device 100 side from the vicinity of the apex of the inner good conductor 953 (the upper surface of the outer good conductor 954) has a capacitive reactance, An inductive reactance is generated by connecting the core line of the matching unit 961 with a thin line 962 and canceling this. If the diameter of the bottom surface of the inner good conductor 953 is increased, the capacitive reactance can be reduced.

  FIG. 15 is an explanatory diagram illustrating another modification of the shape of the connector and the communication device. Hereinafter, a description will be given with reference to FIG.

  In this figure (a), the protrusion 971 protrudes from the second conductor layer 102 toward the opening 901 of the first conductor layer 101. By adjusting the size and shape of the protrusion 971, impedance matching can be easily achieved.

  In this figure (b), a recess 972 is prepared on the communication device 100 side, and a connector 951 is fitted to this, so that reliable positioning can be performed. In addition, since the distance between the inner good conductor 953 and the second conductor layer 102 is reduced, impedance matching can be achieved.

  In addition, when the distance between the inner good conductor 953 and the outer good conductor 954 is set to be equal to or larger than the distance between the inner good conductor 953 and the second conductor layer 102, the entry of electromagnetic waves is likely to occur. For this reason, an annular insulator 956 is attached to the lower side of the outer good conductor 954.

  FIG. 16 is an explanatory diagram showing an embodiment in which the outer good conductor does not necessarily cover the opening.

  In the above example, a configuration in which the connector 105 covers the opening 901 is adopted. However, in order to perform communication, it is not always necessary to cover, and the outer good conductor 954 is close to or in contact with the first conductor layer 101. It is sufficient if the inner good conductor 953 is close to the second conductor layer 102 and capacitive coupling is performed.

  Here, the term “capacitive coupling” is used on the assumption that the size of the electrodes such as the inner good conductor 953 and the outer good conductor 954 is sufficiently smaller than the wavelength of the electromagnetic wave, but the size of the electrode is equal to or greater than the wavelength. Even if it exists, the same coupling | bonding is possible.

  Therefore, as shown in this figure (a), if the outer good conductor 954 is in contact with the first conductor layer and the inner good conductor 953 is close to the second conductor layer 102 through the opening 901, communication is possible. It is. In this figure (b), the protrusion 971 protrudes from the second conductor layer 102 to make the proximity to the second conductor layer 102 more reliable and to achieve impedance matching.

  FIG. 17 is an explanatory diagram for explaining a method of using a magnet in order to ensure positioning between the connector and the communication device. Hereinafter, a description will be given with reference to FIG.

  As shown in the figure, an annular magnet 957 is disposed on the outer periphery of the connector 951. On the other hand, a magnetic thin film 958 is attached to the back side of the second conductor 102 of the communication device 100. As the magnetic thin film 958, various ferromagnetic materials can be used in addition to a magnetic material such as iron.

  In addition, it is desirable to attach a cap 959 made of a magnetic material to the outer periphery of the magnet 957 so as to concentrate the lines of magnetic force as in the case of a cap magnet used in a blackboard or the like to enhance the attractive force.

  In addition, the magnetic thin film 958 is formed in a circular shape or an annular shape that is approximately the same size as the magnet 957 (in the case of using the cap 959, the outer shape of the cap 959), so that the connector is surely disposed at a desired position. can do. This figure shows a case where an annular magnetic thin film 958 is employed.

  FIG. 18 is a schematic diagram showing another embodiment of the arrangement of magnets. In the form shown in this figure, a plurality of magnets are arranged so as to penetrate the outer good conductor 954 at the position of the vertex of a regular polygon centered on the symmetry axis of the connector. The magnetic thin film 958 has an annular shape having the same size as the regular polygon. It is desirable that the thickness of the ring is approximately the same as the size of each magnet.

  FIG. 19 is a schematic diagram showing another embodiment of the arrangement of magnets. In the form shown in this figure, a magnet is disposed on the bottom surface side of the inner good conductor 953, and a magnetic thin film 958 having the same size is disposed on the back side of the opening 901.

  By these methods, the connector can be reliably arranged at a desired position.

  In the above-described embodiment, the description has been mainly made on the embodiment in which the connector 951 covers the opening 901, but it is not always necessary to cover it. FIG. 20 is an explanatory diagram showing the positional relationship when the connector does not cover the opening. Hereinafter, a description will be given with reference to FIG.

  In the example shown in this figure, a rectangular shape is adopted as the bottom shape of the outer good conductor 954, a circular hole is provided at the center, and an inner good conductor 953 having a bottom shape that is concentric with the circular hole is adopted. The inner good conductor 953 overlaps the opening 901, and the outer good conductor (with the opening 901) overlaps the first conductor layer 101.

  Even in such a case, a certain amount of electromagnetic waves can be exchanged, and communication is possible if the power of the electromagnetic waves is large enough for detection.

  FIG. 21 is an explanatory diagram showing the positional relationship between the opening and the connector when the first conductor layer direction is viewed from the second conductor layer when this is further expanded. Hereinafter, a description will be given with reference to FIG.

  As shown in the figure, the first conductor layer 101 has a plurality of openings 901 arranged at high density. Even with such a configuration, the electromagnetic wave travels between the first conductor layer 101 and the second conductor layer 102 and hardly leaks to the outside.

  Here, when the connector 951 is brought closer as shown in this figure, the external good conductor 954 closes the opening 901, so that the electromagnetic wave flows into the opening 901 where the electromagnetic wave has not flowed until then. For this reason, electromagnetic waves are sucked out to the connector 951 side through the gap between the good internal conductor 953 and the good external conductor 954. It is also possible to send electromagnetic waves to the communication device 100 from the connector 951 side.

  According to this configuration, even if the opening 901 and the connector are not aligned, the electromagnetic wave is transmitted and injected through a region where “the opening of the first conductor layer 101” and “the gap between the internal good conductor 953 and the external good conductor 954” overlap. It can be done.

  In the above embodiment, impedance matching is performed using the impedance matching unit 961. In this embodiment, the impedance matching stability is improved by adjusting the size of the internal good conductor 953.

  When the outer edge of the internal good conductor 953 shown in FIG. 13 is X, the inner edge of the external good conductor 954 is Y, the boundary of the region facing the internal good conductor 953 of the second conductor layer 102 is Z, and the connector 951 is close to the communication device 100 Consider the equivalent circuit. FIG. 22 is an explanatory diagram showing this equivalent circuit. Hereinafter, a description will be given with reference to FIG.

  In this figure, for ease of understanding, the connector 951 and the communication device 100 are shown separated from each other, but in actuality, they are used in close proximity or in contact with each other.

  When the radius r of the internal good conductor 953 is sufficiently smaller than the wavelength λ of the electromagnetic wave, the internal conductor layer 953 and the second conductor layer 102 form a capacitance C, so that the impedance between X and Y is capacitive. Become.

  In order to cancel this reactance, the inductance by the thin line 962 is added in the above embodiment.

  However, since the capacitance C depends on the distance d between the connector 951 and the second conductor layer 102, the impedance matching changes depending on how the connector 951 is in contact with the communication device 100, and communication becomes unstable. May be.

Therefore, when the angular frequency of the electromagnetic wave is ω, the speed of light in the insulating layer 106 is c, and the zero-order Bessel function is J ₀ (x), the radius r of the internal good conductor 953 is
J ₀ (r (ω / c)) = 0
It is determined that Approximately, r≈λ / 4.

  In this way, since the impedance between X and Z when viewed in the direction of the central axis is ideally zero, the capacitance C of the equivalent circuit shown in FIG. It becomes.

  Further, if r is set to be slightly shorter than the length at which the capacitive reactance C is completely zero, and the inductive reactance jωL is canceled, the inductance by the thin line 962 becomes unnecessary.

  Thus, the conditions for canceling the capacitive reactance C and the inductive reactance L are determined without depending on the distance d. Therefore, signal transmission / reception does not change unstable due to slight changes in the contact state, and stable operation is possible.

(Embodiment of the present invention)
The basic technology as described above relates to a sheet-like communication device that includes a belt-like shape as one of its shapes, and can also be applied to a belt-like electromagnetic wave propagation device described below. Below, detailed embodiment of the electromagnetic wave propagation apparatus of strip | belt shape (tape shape, band shape) is described. Note that a band-shaped (tape-shaped, band-shaped) electromagnetic wave propagation device is also referred to as a “communication device” as appropriate in the following, in accordance with the terms of the basic technology.

  FIG. 23 is an explanatory diagram showing a schematic configuration according to the embodiment of the band-shaped electromagnetic wave propagation device (communication device). Hereinafter, a description will be given with reference to FIG.

  FIG. 1A is a plan view of the communication device (electromagnetic wave propagation device) 100. As shown in the figure, the communication device 100 has a vertically long tape shape (band shape).

  FIG. 2B is a cross-sectional view of the communication device 100 taken along the line AA ′. The communication device 100 includes a first conductor layer 101, a second conductor layer 102, and an insulating layer 106 made of a dielectric. The insulating layer 106 covers the second conductor layer 102. The first conductor layer 101 has a strip shape that is thinner than the second conductor layer. The first conductor layer 101 is appropriately referred to as a “stripe layer”, and the second conductor layer 102 is appropriately referred to as a “back layer”.

  The distance between the first conductor layer 101 and the second conductor layer 102 is d, and the distance between the edge of the communication device 100 and the edge of the first conductor layer 101 (the left edge in the figure) is W. Then, it is desirable that W is equal to or higher than d. Thereby, scattering and attenuation of electromagnetic waves due to the material on the back surface of the communication device 100 can be prevented.

  That is, if the distance d is sufficiently smaller than the wavelength of the electromagnetic wave in the insulating layer 106 (for example, d = about 0.5 mm, the electromagnetic wave wavelength is about 8 cm), the first conductor layer 101 and the second conductor layer There is a mode in which microwaves travel in the longitudinal direction of the communication device 100 in the space between the two.

  The region where the electromagnetic wave oozes from the edge of the first conductor layer 101 is about a distance d from the edge of the first conductor layer 101. Therefore, if W is set to be larger than d, there is an obstacle on the surface of the communication device 100. Unless contact is made, scattering and attenuation do not occur regardless of the situation on the second conductor layer 102 side. That is, the cause of the attenuation is that the conductivity of the first conductor layer 101 and the second conductor layer 102 is finite, and the inductive loss of the insulating layer 106 is not zero.

  Even when such a communication device 100 is used, the same connector as the connector 951 described above can be employed. FIG. 24 is an explanatory diagram showing a state in which the connector according to the present embodiment and the electromagnetic wave propagation device (communication device) are connected. Hereinafter, a description will be given with reference to FIG.

  The portion corresponding to the opening 901 in the above embodiment is between the right edge of the first conductor layer 101 and the right edge of the communication device 100 in the drawing. If the inner good conductor 953 of the connector 951 is disposed therebetween and the outer good conductor 954 of the connector 951 is disposed so as to overlap the second conductor layer 102, the outer good conductor 954 is close to the first conductor layer 101, and the inner good conductor 953. Is capacitively coupled to the second conductor layer 102 to establish capacitive coupling between the connector 951 and the communication device 100, and signals can be exchanged between the two.

  In this case, the shape of the connector 951 is not limited to being axially symmetric, and can be an arbitrary shape such as a quadrangle.

  When the connector 951 is arranged and contacted in this way, electromagnetic waves are induced along the outer good conductor 954 from between the first conductor layer 101 and the second conductor layer 102, and reception by the connector 951 becomes possible.

  On the contrary, electromagnetic waves ooze out between the inner good conductor 953 and the outer good conductor 954 and are guided between the first conductor layer 101 and the second conductor layer 102, and can be transmitted to the communication device 100. .

  As described above, since the connection between the connector 951 and the communication device 100 is easy, even when a plurality of communication devices 100 cross each other, the two communication devices 100 can be connected by the connector and function as a unit. Is possible. FIG. 25 is an explanatory diagram showing a state in which such crossed electromagnetic wave propagation devices (communication devices) are connected by a coupler using a connector.

  As shown in the upper part of the figure, two communication devices 100 are simply overlapped with each other, and two communication devices 100 further crossed by a coupler 981 are placed near the intersection. The lower part of the figure is a cross-sectional view of the coupler 981.

  The coupler 981 has two internal good conductors 953, which are surrounded by one external good conductor 954. The internal good conductors are connected to each other through two impedance matching units 961 and a cable 982. The cable 982 may use a microstrip line, in which case it can be molded integrally with the impedance matching unit 961. The impedance matching unit 961 can be omitted when matching is achieved.

  The coupler 981 shown in the figure is drawn with a large thickness direction in order to facilitate understanding of the principle. However, in actuality, the coupler 981 has a flexible structure that can be fitted to the step of the communication device 100 and is made thin. Is desirable.

  FIG. 26 is an explanatory diagram illustrating an example in which the electromagnetic wave propagation devices (communication devices) are more easily connected. Hereinafter, a description will be given with reference to FIG.

  As shown in this figure, two belt-like communication devices 100 are arranged vertically, and the same belt-like communication device 100 is placed in an inverted manner so as to straddle both.

  Thus, if the communication devices 100 are arranged so that the first conductive layers 101 face each other and the second conductive layers 102 face each other, the electromagnetic waves used for communication can be branched. It becomes.

  FIG. 27 is an explanatory diagram showing various embodiments of the electromagnetic wave propagation device (communication device). Hereinafter, a description will be given with reference to FIG.

  This figure (a) is sectional drawing and is embodiment which arrange | positions the 1st conductor layer 101 in the center of a strip | belt. This figure (b) is sectional drawing and is embodiment which arrange | positions the 1st conductor layer 101 to the both ends side of a strip | belt.

  This figure (c) is a top view, and a relatively wide one is used as the first conductor layer 101, but the same effect can be obtained by providing a plurality of openings 901.

  Note that such a band communication device can also transmit a low-frequency signal. The principle will be described below. The outer good conductor 954 (electrode 1) of the connector 951 forming the interface and the first conductor layer 101 (stripe layer) of the communication device form a capacitor, and the inner good conductor 953 (electrode 2) and the second conductor layer 102 (back layer) Forms a capacitor. The first conductor layer 101 and the second conductor layer 102 also form a capacitor. A capacitive coupling is formed, and an equivalent circuit is formed by connecting these capacitors in series.

  FIG. 28 is an explanatory diagram showing such a situation. Strictly speaking, capacitances exist between 953 and 954, between 954 and the back layer, and between 953 and the stripe layer, but are not shown for easy understanding.

  Further, as shown in the figure, the electrode 1 and the electrode 2 corresponding to the inner good conductor 953 and the outer good conductor 954 are not necessarily arranged “inside” and “outside”, and may be arranged side by side. In the following description, the correspondence relationship with the above-described embodiment is used as it is regardless of the position of the arrangement, and even when arranged side by side, they are referred to as “inner good conductor 953” and “outer good conductor 954”.

  When the voltage between the inner good conductor 953 and the outer good conductor 954 is changed, the voltage between the first conductor layer 101 and the second conductor layer 102 is also changed. The reverse is also true. Thus, signal transmission is performed.

  FIG. 29 is an explanatory diagram showing an example in which this is further applied. In the embodiment according to this figure, a mode different from the above is used, but microwave transmission is also possible. Hereinafter, a description will be given with reference to FIG.

  As shown in the figure, the first conductor layers 101 (stripes) are alternately arranged in the communication device 100 (tape). The second conductor layer 102 (back layer) is not shown.

  A voltage is applied at the interface by the connector 951 between the stripes displayed in black and those displayed in gray, and the electric field generates a microwave directed horizontally in the figure. The physical structure is the same for stripes displayed in black and stripes displayed in gray.

  FIG. 30 is an explanatory view of the interface in this case as seen from above. Hereinafter, a description will be given with reference to FIG.

  Thus, when a voltage is applied by arranging the connector 951 group of the series A and the connector 951 group of the series B in a staggered manner so as to be shifted by a half cycle, it always depends on one of the series regardless of the interface position on the tape. Since the stripe can be driven, the connection can be easily performed.

  As described above, various modes can be adopted for the communication device 100 and the connector 951.

  Note that the communication device 100 can be used not only indoors but also in a vacuum, underwater, and in the soil. In this case, since the dielectric constant or the like changes, the parameters may be adjusted as appropriate according to the use environment. In addition, the sheet-like body can be provided in an independent shape. For example, the first conductor layer 101, the insulating layer 106, and the second conductor layer 102 are formed by spraying on the wall or floor of a room. The apparatus 100 may be configured.

  Further, the communication element 105 integrated with the connector communicates with each other, the communication element 105 integrated with the connector communicates with the external communication element 105 connected by the connector, and connected by the connector. In addition to a form in which the external communication elements 105 communicate with each other, various communication modes such as a case where an electrically connected external communication device functions as the external communication element 105 can be employed. In particular, the present invention can be applied regardless of the number of communication partners, such as one-to-one, one-to-many, and many-to-many.

  In addition, the connector can be coupled to an ID tag, a sensor, or the like in addition to connecting an external device such as a computer.

  The first conductor layer 101 and the second conductor layer 102 are sufficient if they are good conductors in the signal frequency band, and need not always be “conductors”. Further, the first conductor layer 101 and the second conductor layer 102 may be the same even if a material having a dielectric constant significantly larger than the dielectric constant of the dielectric constituting the insulating layer 106 or a material having a smaller dielectric constant is adopted. The effect of can be obtained.

  Further, the insulating layer 106 may be filled with some dielectric material, or air or vacuum may be left as it is.

  As described above, according to the present invention, it is possible to provide an electromagnetic wave propagation device having a strip shape that is connected to an external device or a communication element and propagates an electromagnetic wave.

It is a perspective view which shows schematic structure of the communication apparatus which concerns on related embodiment of this invention. It is sectional drawing which shows schematic structure of the communication apparatus which concerns on related embodiment of this invention. It is sectional drawing which shows schematic structure of the communication apparatus which concerns on related embodiment of this invention. It is sectional drawing which shows schematic structure of the communication apparatus which concerns on related embodiment of this invention. It is sectional drawing which shows schematic structure of the communication apparatus which concerns on related embodiment of this invention. It is explanatory drawing which shows schematic structure of a communication element which receives power supply. It is a circuit diagram which shows schematic structure of the transmission circuit of a communication element. It is a circuit diagram which shows schematic structure of the receiving circuit of a communication element. It is sectional drawing which shows schematic structure of the communication apparatus which concerns on embodiment relevant to this invention. It is explanatory drawing explaining the site | part which should provide a resistance layer with respect to the communication apparatus of a special shape. It is sectional drawing which shows schematic structure of the communication apparatus which concerns on other embodiment of this invention. It is sectional drawing which shows the shape of the hole vicinity of another Example when a communication element, a 1st conductor layer, and a 2nd conductor layer are connected in contact. It is explanatory drawing which shows the mode of the cross section of the communication apparatus and the connector to an external apparatus. It is explanatory drawing which shows the mode of a connector provided with an impedance matching device, and a communication apparatus. It is explanatory drawing which shows the mode of a connector provided with an impedance matching device, and a communication apparatus. It is explanatory drawing which shows embodiment which an outer side good conductor does not necessarily cover an opening part. It is explanatory drawing explaining the method of using a magnet in order to ensure the positioning between a connector and a communication apparatus. It is a schematic diagram which shows other embodiment about arrangement | positioning of a magnet. It is a schematic diagram which shows other embodiment about arrangement | positioning of a magnet. It is explanatory drawing which shows the mode of the positional relationship when a connector does not cover an opening. It is explanatory drawing which shows the positional relationship of opening and a connector when seeing the 1st conductor layer direction from the 2nd conductor layer. It is explanatory drawing which shows the equivalent circuit of a connector and a communication apparatus. It is explanatory drawing which shows schematic structure of the electromagnetic wave propagation apparatus which concerns on embodiment of this invention. It is explanatory drawing which shows a mode that a connector and an electromagnetic wave propagation apparatus are connected. It is explanatory drawing which shows a mode that the crossed electromagnetic wave propagation apparatus is connected with the coupler using a connector. It is explanatory drawing which shows the Example which connects easily between electromagnetic wave propagation apparatuses. It is explanatory drawing which shows various embodiment of an electromagnetic wave propagation apparatus. It is explanatory drawing which shows an equivalent circuit. It is an application example of a communication apparatus and an interface. It is a top view of an interface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Communication apparatus 101 1st conductor layer 102 2nd conductor layer 103 Hole 104 Protrusion 105 Communication element 106 Insulation layer 201 Electrode 202 Electrode 301 Insulator 501 Positive terminal 502 Negative terminal 503 Resistance 504 Diode 505 Capacitor 506 Transmission circuit 507 Reception circuit 508 Control Circuit 601 pMOS transistor 602 Diode 603 nMOS transistor 701 Resistance 702 Resistance 703 Comparator 801 Resistance layer 901 Opening 951 Connector 952 Coaxial cable 953 Inner good conductor 954 Outer good conductor 957 Magnet 958 Magnetic thin film 959 Cap 961 Impedance matching line 961 Impedance matching line 961 Hollow 981 coupler 982 cable

Claims (5)

A first strip conductor,
A second strip-shaped conductor portion that is disposed substantially parallel to the first strip-shaped conductor portion and has a region that is not covered by the first strip-shaped conductor portion when viewed from the first strip-shaped conductor portion side;
With
Between the first electrode that is in proximity to or in contact with the first strip-shaped conductor portion and the second electrode that is in proximity to or in contact with the uncovered region and is in proximity to the second strip-shaped conductor portion An electromagnetic wave propagation device characterized in that an electromagnetic wave generated by a change in voltage is propagated in a region sandwiched between the first strip-shaped conductor portion and the second strip-shaped conductor portion. The electromagnetic wave propagation device according to claim 1,
Since the width of the first strip conductor portion is narrower than the width of the second strip conductor portion, the second strip conductor portion is the first strip when viewed from the first strip conductor portion side. Having a region that is not covered by the strip-shaped conductor portion of
The distance between the edge of the first band-shaped conductor part and the edge of the second band-shaped conductor part when viewed from the first band-shaped conductor part side is the surface of the first band-shaped conductor part and the An electromagnetic wave propagation device characterized by being at least a distance from the surface of the second strip-shaped conductor portion. The electromagnetic wave propagation device according to claim 1,
When the first strip conductor portion has a plurality of apertures, the second strip conductor portion covers the first strip conductor portion when viewed from the first strip conductor portion side. Has an undisclosed area,
The distance between the edge of the first band-shaped conductor part and the edge of the second band-shaped conductor part when viewed from the first band-shaped conductor part side is the surface of the first band-shaped conductor part and the An electromagnetic wave propagation device characterized by being at least a distance from the surface of the second strip-shaped conductor portion. The electromagnetic wave propagation device according to claim 1,
Since the first strip conductor portion is divided into a plurality of narrow strips, the second strip conductor portion is the first strip conductor portion when viewed from the first strip conductor portion side. Has an area not covered by
The distance between the edge of the first band-shaped conductor part and the edge of the second band-shaped conductor part when viewed from the first band-shaped conductor part side is the surface of the first band-shaped conductor part and the An electromagnetic wave propagation device characterized by being at least a distance from the surface of the second strip-shaped conductor portion. The first electromagnetic wave propagation device according to any one of claims 1 to 4,
The second electromagnetic wave propagation device according to any one of claims 1 to 4,
An electromagnetic wave propagation device comprising:
The first electromagnetic wave propagation device and the second electromagnetic wave propagation device are arranged so that the first belt-like conductor portion of the first electromagnetic wave propagation device and the first electromagnetic wave propagation device of the second electromagnetic wave propagation device face each other. An electromagnetic wave propagating device characterized in that the electromagnetic wave propagating device is placed in proximity.

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