JPH0644695B2 - Amplifier - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tuning and amplifying device that can be used for televisions, radios, stereo tuners, personal radio transmitters and receivers, and other communication devices in general.

Configuration of conventional example and its problems In recent years, broadcast radio waves of televisions and radios and communication radio waves of communication equipment have increased, and high tuning accuracy is achieved in the performance of a tuning amplifier that selects and amplifies a broadcast signal desired to be received. ， Stability and reliability are needed. On the other hand, the reduction of the manufacturing cost of those receivers, transmitters, and communication devices where tuning amplifiers are installed is also a major issue, and the development of drastic new technology for the components of tuning amplifiers in the high-frequency part, which is particularly difficult to rationalize. Is especially needed.

A conventional amplification device will be described below with reference to the drawings.

FIG. 1 is a circuit configuration diagram of a conventional amplifier. Reference numeral 1 is an amplifier, and a signal input to its input terminal 2 is amplified and output to a load circuit including a tuner 3. In the tuner 3, 4 is a tuning coil, 5 is a trimmer capacitor, and 6 is a voltage variable capacitance diode. The voltage variable capacitance diode 6 has a resistor 7 for an AC signal device.
The voltage of the DC power source 8 was variably divided and supplied by the potentiometer 9 via the. Then, the control voltage of the voltage variable capacitance diode 6 is changed by changing the voltage division ratio in the potentiometer 9, and the tuning frequency in the tuner 3 is variably controlled.

Further, FIG. 2 is a conventional structural diagram of parts constituting the tuner 3 in FIG. 10 was a tuning coil, 11 was a trimmer capacitor, 12 was a voltage variable capacitance diode, each connected by circuit conductors 13 and 14, respectively.

However, in the above configuration, the inductor component and the capacitor component are larger in size than other high frequency components, and the particularly high height hinders downsizing and thinning of the device in which the tuning amplifier is installed. is doing.

The inductance of an inductor component is likely to shift due to mechanical vibration, and the ferrite core has a large temperature dependency, so that the inductance is unstable, and the tuning frequency of the tuner greatly fluctuates. Therefore, even if a tuned amplifier is constructed, its amplification gain greatly varies depending on the ambient conditions.

Since the inductor component and the capacitor component exist as separate components and are connected by a circuit conductor having a long path, many lead inductances and stray capacitors are generated and the operation of the tuning circuit is unstable. As a result, sufficient selection characteristics cannot be ensured, and further, inconveniences such as the appearance of an unnecessary resonance state at uncertain frequency points occur, and the target tuned amplifier cannot be realized. Therefore, the occurrence of abnormal oscillation, the response of unnecessary signals, the increase of harmonic components in the amplified signal and the resulting distortion, the narrowing of the change width at the variable tuning frequency,
Furthermore, the inter-modulation interference rejection characteristics and spurious interference rejection characteristics are deteriorated.

Since the tuning circuit is a collective circuit of independent individual components having the minimum unit function, there is a limit to reduction of the number of components and rationalization of manufacturing.

Furthermore, the control voltage for the voltage variable capacitance diode is unstable, and thus the tuning accuracy of the tuner is significantly degraded. As a result, the required selection characteristics cannot be secured,
This causes fluctuations in amplification gain due to fluctuations in load conditions in the amplifier, fluctuations in distortion due to fluctuations in the fundamental wave level and harmonic component levels in the amplified signal, and fluctuations in intermodulation interference rejection characteristics and spurious interference rejection characteristics.

As a configuration technology of a control system, digitization, which is a major trend in the industrial world, cannot be applied to LSI, and it is not possible to realize advanced multifunctional control of an amplifier and a device using the same.

There were problems such as.

OBJECT OF THE INVENTION An object of the present invention is to realize an amplifying device having a tuner provided with an inductor component and a capacitor component integrated, and to amplify an amplifier device including the tuner configured integrally with a digital signal. An object of the present invention is to provide an amplifying device capable of controlling a tuning frequency.

Configuration of the Invention The amplification device of the present invention is connected to the ground of each of the main electrode and the sub electrode having at least one or more predetermined bending angle or bending ratio and a bending portion showing a predetermined bending direction, which are opposed to each other via a dielectric. The voltage of the open terminal of the main electrode or the sub-electrode is variable in one or more tuners, which are set so that the positions of the terminals to be connected are not opposed to each other. A reactance element is connected and installed, and an input terminal or output terminal of the amplifier is connected and installed to the open terminal of the predetermined main electrode or sub-electrode of the tuner, D
The tuning control code is input to the control unit including the -A converter, and the analog output voltage in the control unit is supplied to the voltage variable reactance element.

Description of Embodiments Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows a circuit configuration diagram of an amplifier device according to an embodiment of the present invention. The signal input to the input terminal 15 is tuned and selected by the input tuner 16 and supplied to the input terminal 18 of the amplifier 17. Then, the width output signal amplified by the amplifier 17 is output to the output terminal 19 and is also supplied to the output tuner 20 to be further selected for tuning and output to the output terminal 21. In each of the tuners 16 and 20, 22 and 23 are transmission line electrodes having an inductance due to the sum of the distributed inductor and the lumped inductor generated by bending the transmission line electrodes. On the other hand, each of 24 and 25 is a transmission line electrode that faces or is parallel to the transmission line electrodes 22 and 23 via a dielectric (not shown) or on the surface thereof. The ground terminals of the transmission line electrodes 22 and 24, and the ground terminals of the transmission line electrodes 23 and 25 are set in opposite directions. The output terminal 18 of the tuner 16 (common to the input terminal 18 of the amplifier 17) is set to the open terminal of the transmission line electrode 22. The input terminal 19 of the tuner 20 (common to the output terminal 19 of the amplifier 17) is set to the open terminal of the transmission line electrode 23. Here, the voltage variable capacitance diodes 26 and 27 are connected to the tuners 16 and 20, respectively. Thereby, the input terminal 18 in the amplifier 17
The input variable tuner 28 is connected and installed at the output terminal 19
The output variable tuner 29 is connected and installed.
The variable tuning control in the respective variable tuners 28 and 29 is performed by the voltage variable capacitance diodes 26 and 27 via the AC blocking resistors 30 and 31.
Depends on the control voltage supplied to. The control voltage is D
The analog output voltage of the -A converter 32 is supplied, and the digital signal code for tuning control is input to the input terminal 33 of the DA converter 32. Constitute.

FIG. 4 shows a circuit diagram of an amplifier device according to another embodiment of the present invention. The configurations of the input variable tuner 16, the output variable tuner 20, and the amplifier 17 and their respective connection configurations are the same as those described in FIG. On the other hand, as a control unit, a digital signal processor 34 composed of a latch or a RAM or a ROM is connected to the input terminal 33 of the DA converter 32, and a digital output signal of the digital signal processor 34 is supplied. The digital signal processor 34 serves to store the tuning control digital signal code inputted to the input terminal 35 thereof and to convert it into another digital signal code.

FIG. 5 shows a circuit diagram of an amplifier device according to another embodiment of the present invention. The configurations of the input variable tuner 16, the output variable tuner 20, and the amplifier 17 and their respective connection configurations are the same as those described in FIGS. 3 and 4. On the other hand, as the control unit, D
-Latch or R in the input terminal 33 of the A converter 32
Digital signal processor 34 comprising AM or ROM
Is connected and installed, and a code converter 36 is connected and installed to the input terminal 35 of the digital signal processor 34, and the digital output signal of the code converter 36 is supplied to the digital signal processor 34. The code converter 36 serves to convert the serial format digital signal code for tuning control input to the input terminal 37 thereof into a parallel format digital signal code.

In the embodiments shown in FIGS. 3 to 5, the terminals of the tuners 16 and 20 which are set to the ground are not connected to the ground, and are used as common terminals in the tuners 16 and 20. , The required purpose can be achieved by connecting to other circuits including the respective amplifiers 17. Further, the input terminal 19 of the tuner 20 and the output terminal 18 of the tuner 16 are
It is not set to be set at the tips of the respective transmission path electrodes 23 and 22, but can be set at an arbitrary position having a required impedance. Further, the installation positions of the voltage variable capacitance diodes 26 and 27 are not limited to being connected to the predetermined positions of the transmission path electrodes 22 and 23, but may be connected to arbitrary positions of the transmission path electrodes 22 and 23. Even the required purpose can be achieved.

In the embodiment shown in FIGS. 3 to 5 above, when it is necessary to adjust the tuning frequency in each of the tuners 16 and 20, is it necessary to arbitrarily cut out the required portions of the transmission line electrodes 24 and 25? Alternatively, it is possible to change the distributed capacitance and the inductance by arbitrarily setting the ground terminals of the transmission line electrodes 22, 23, 24, and 25 at a required portion, and the purpose can be achieved.

FIGS. 6 to 14 show an embodiment of the structure of the transmission line electrodes and the dielectrics in the tuners 16 and 20 described in FIGS. 3 to 5. In FIG. 6, (a) is a front view, (b) is a side view, and (c) is a back view. (The same applies to FIGS. 7 to 12 below.) In FIG. 6, 100 is a dielectric substrate, and 101 and 102
Is an electrode forming a distributed constant circuit to realize a distributed inductor and a distributed capacitor. The ground terminals of the electrodes 101 and 102 are set so that the electrodes facing each other are set in arbitrary opposite directions as shown in FIG. (The same applies to FIGS. 7 to 14 below) The side shown in FIG. 6 (a),
The side corresponds to the side shown in FIG. 6 (c), and the side corresponds to the side. (The same applies to FIGS. 7 to 12 below.) In FIG. 7, electrodes 104 and 105 each having one bent portion are provided opposite to each other with a dielectric substrate 103 interposed therebetween.

In FIG. 8, electrodes 107 and 108 each having a plurality of bent portions are arranged opposite to each other through a dielectric substrate 106.

In FIG. 9, meander-shaped electrodes 110 and 111 are installed opposite to each other via a dielectric substrate 109.

In FIG. 10, spiral electrodes 113 and 114 are installed opposite to each other via a dielectric substrate 112.

In FIG. 11, the electrode 11 is provided inside the dielectric substrate 118.
9 and 120 are installed opposite to each other.

In FIG. 12, the electrode 12 is provided inside the dielectric substrate 121.
2 is installed, an electrode 123 is installed on the surface of the dielectric substrate 121, and the electrodes 122 and 123 face each other.

13 and 14 are block diagrams of a tuner according to another embodiment of the present invention. The electrode 125 is installed on the inner peripheral part of the cylindrical dielectric 124, and the electrode 126 is installed on the outer peripheral part so as to face the electrode 125.
The ground terminals of the electrodes 125 and 126 are set to be in opposite directions. Here, as the dielectric material 124, not only a cylindrical material but also a rectangular tube-shaped material can be used.

In the embodiment shown in FIGS. 6 to 14, the electrodes installed opposite to each other have the same shape and are entirely opposed to each other.
It can be realized even if an arbitrary one electrode has a different equivalent length from the other electrode, or if the opposite electrodes partially face each other. The shapes of the electrodes used in the embodiments shown in FIGS. 11 to 14 are shown in FIGS.
It can also be realized by using the one shown in the embodiment shown in the figure.

Further, in the embodiment shown in FIGS. 7 to 10, the bent portion is formed in the shape of a square arc having an arbitrary bending angle, but in addition to this, the bent portion has an arc shape having an arbitrary curvature. It goes without saying that the electrodes may be formed by the pattern of.

In each of the above embodiments, the ground terminal of each electrode is not particularly set as the ground terminal,
Generally, it can be connected to another circuit unit (not shown) as a common terminal to achieve a desired purpose.

In each of the above-described embodiments, the one shown in FIG. 6 can be configured with a simple electrode pattern, and a highly accurate electrode pattern can be easily formed. As a result, it is possible to construct a tuner that accurately matches the tuning frequency of the design target. 7 to 1
The one shown in FIG. 0 can form a relatively large inductor and capacitor even if the area occupied by the tuner is small. Therefore, a small tuner having a relatively low tuning frequency can be realized, and the space factor of the tuner can be improved. What is shown in FIGS. 11 and 12 can be introduced into the manufacturing process of the multilayer circuit board. As a result, the electrode is installed inside the dielectric and is not exposed to the outside, so that it is not directly affected by changes in external conditions. Therefore, since the tuning frequency of the tuner is not affected, a tuner having extremely stable performance can be realized. 13 and 14
Even if the tuner shown in FIGS. 6 to 12 is made smaller than that shown in FIGS. 6 to 12, it is possible to form a sufficiently large inductor and capacitor. Therefore, a very small tuner having a sufficiently low tuning frequency can be realized. Further, in the case of manufacturing this, as shown in FIG. 13 and FIG. 14, a large number of electrodes can be formed by continuously forming electrodes on a continuous cylindrical dielectric material and cutting the electrodes at a required size. It can be easily manufactured.

As the transmission line electrode in each of the above embodiments, a metal conductor, a printed metal foil conductor, a thick film printed conductor, a thin film conductor or the like can be used, and the transmission line electrode is formed by combining different kinds of the above conductors. You may. On the other hand, as the dielectric, alumina ceramic, barium titanate, plastic, Teflon, glass, mica, resin-based printed circuit board or the like can be used.

The operation of the tuner of the present embodiment constructed as above will be described below.

FIG. 15 is an equivalent circuit for explaining the operation of the tuner of the present invention. In FIG. 15 (a), a signal source 72 which has an electric length l and generates a voltage with respect to a transmission line formed by respective transmission line electrodes 70 and 71 whose ground terminals are set in opposite directions is provided. It shall be connected to the transmission line electrode 70 to supply a signal. Then, the traveling wave voltage _A is excited at the open terminal at the tip of the transmission path electrode 70. On the other hand, since the transmission line electrode 71 is installed in close proximity to or in parallel with the transmission line electrode 70, a voltage is induced by the mutual induction action. Let _B be the traveling wave voltage induced at the open terminal at the tip of the transmission path electrode 71.

Here, since the ground terminals of the transmission path electrodes 70 and 71 are set in opposite directions, the traveling wave voltage _B induced has an opposite phase to the traveling wave voltage _A to be excited. Then, each traveling wave voltage _A and
_{In B,} since the tip of the electric transmission path is in an open state, a voltage standing wave is formed in the transmission path formed by the electric transmission path electrodes 70 and 71. If the voltage distribution coefficient indicating the distribution of the voltage standing wave at the transmission line electrode 70 is represented by K, the voltage distribution coefficient at the transmission line electrode 71 can be represented by (1-K).

Therefore, next, when determining the potential difference V generated at any of the opposed parts in the transmission line electrodes 70 and 71 V = K A _- can be represented by _{(1-K) B ...... (} 1). Here, assuming that the respective transmission path electrodes 70 and 71 have the same electric length l, _B = _-A (2), whereby the potential difference V in the first expression is V = K _A + (1-K) _A = _A (3) That is, the potential difference V can be generated in all the portions where the transmission path electrodes 70 and 71 face each other.

Here, it is assumed that the transmission path electrodes 70 and 71 have the electrode width W (the thickness of the electrodes is thin) and that they are opposed to each other at a distance d via a dielectric having a dielectric constant ε _S. . Capacitance CC _O to form a unit length per transmission path in this case is And therefore Becomes

Therefore, the transmission line shown in FIG. 15 (a) is a transmission line including the C _O distributed capacitor 73 obtained by the equation 6 per unit length as shown in FIG. 15 (b). Further, since the voltage standing wave distribution (or current standing wave distribution) in each of the transmission line electrodes 70 and 71 has an antiphase relationship with each other as described above, this transmission line is equivalently It will operate as a balanced mode transmission line. This is equivalent to a balanced mode transmission line formed by transmission line electrodes 75 and 76 excited in a balanced mode by a balanced signal source 74 having a balanced voltage ', as shown in FIG. 15 (c). Needless to say, the electric length is the same as the original electric length 1 shown in FIG. 15 (a). Further, as shown in FIG. 15 (d), this balanced mode transmission line is a total distributed inductor 77 and 78 and a distributed capacitor due to the distributed inductor component of the transmission line and the lumped inductor component generated by the bent shape of the transmission line, respectively. It can be equivalently expressed as a distributed constant circuit composed of 73.

Next, the relationship with the electrical length 1 of the transmission line in forming the distributed capacitor 73 will be described. The characteristic impedance Z _O per unit length in the balanced mode transmission line as shown in FIG. 16 (a) can be represented by the equivalent circuit shown in FIG. 16 (b). Its characteristic impedance Z _O is generally Becomes If the transmission line is lossless, Becomes Many of the embodiments of the tuner of the present invention can apply this assumption, and use the characteristic impedance Z _O shown in the following equation 8 for simplicity of explanation. The capacitance C _O in the equation 8 is the same as the capacitance C _O per unit length in the transmission line obtained in the equation 6. That is, the characteristic impedance Z _O per unit length in the transmission line is a function of the capacitance C _O ,
It is also a function of the permittivity ε _S of the dielectric material responsible for the capacitance C _O , the width W of the transmission line electrodes and the spacing d of the respective transmission line electrodes.

As described above, the characteristic impedance per unit length in the Z _O of the transmission path, the electrical length is l, and an equivalent reactance X of the tip occurs in the terminal of the transmission line is an open state X = -Z _O cot θ can be expressed by (9). here And especially In the case of, the equivalent reactance X is X ≦ O (12). That is, the equivalent reactance at the terminals of the transmission line can be a capacitive reactance. Therefore, when θ corresponds to Expression 11 according to the electrical length l of the transmission line, that is, when the electrical length l is set to λ / 4 or less, the capacitor can be formed. And
The capacitance C of the capacitor that can be formed is As shown by, the arbitrary capacitance C can be realized by changing θ, that is, by setting the electrical length l of the transmission line.

FIG. 17 shows the operation mode of the transmission path described in the above equations 9 to 13 in the figure. First
FIG. 7 shows a state in which the equivalent reactance X generated at the terminal changes in accordance with a change in the electrical length l of the transmission line whose tip is open. As is apparent from FIG. 17, the electrical length l of the transmission line is λ / 4 or less or λ /
In the case of 2-4λ / 3, etc., it is possible to form a negative terminal reactance, that is, a capacitor can be formed equivalently. Furthermore, under the condition that a negative terminal reactance is generated, the capacitance C is set by arbitrarily setting the electrical length l of the transmission line.
Can be realized as an arbitrary value.

The capacitor C thus formed is shown in FIG.
The lumped constant capacitor 79 shown in (e) can be equivalently replaced. Further, the inductor formed by the sum of the distributed inductor component existing in the transmission line and the lumped inductor component generated by the bending formation of the transmission line can be equivalently replaced as the lumped constant inductor 80. Then, if the virtual balanced signal source 74 and the ground in each transmission line are replaced so as to be equivalently the same as the original state shown in FIG. 15 (a), FIG. 15 (f) As shown in. When the ground terminal is commonly used in FIG. 15 (f), it is finally equivalent to a parallel resonance circuit composed of a lumped constant capacitor 79 and a lumped constant inductor 80 as shown in FIG. 15 (g). Therefore, a tuner can be realized.

As the amplifier used in the above-described amplifying device, a transistor, a field effect transistor, a semiconductor device such as an IC, or a vacuum tube can be used.

EFFECTS OF THE INVENTION As is clear from the above description, the amplification device of the present invention is
The main electrode and the sub-electrode, which have at least one or more predetermined bending angle or bending ratio and a bending portion showing a predetermined bending direction, which are opposed to each other via the dielectric, are located at the respective terminals which are connected to the ground. A variable voltage reactance element is connected and installed to the open terminal of the main electrode or the width electrode in a single or a plurality of tuners which are set so as not to face each other and have different facing positions. The input terminal or output terminal of the amplifier is connected and installed to the open terminal of the predetermined main electrode or the auxiliary electrode in the container, and the tuning control code is input to the control section composed of the DA converter, and at the same time, in the control section. Since the analog output voltage is supplied to the voltage variable reactance element, it is amplified and amplified by a determinable digital signal code. The tuning control is possible, and the amplification tuning control is possible by using the DA converter having a stable and highly accurate conversion function, whereby the amplification tuning accuracy of the amplifying device is significantly improved. As a result, the amplification gain in the amplification device can be stably ensured, the fundamental wave level in the amplified signal can be sufficiently raised, and the harmonic component level can be sufficiently lowered, so that the distortion can be remarkably stably reduced. Further, the intermodulation interference rejection characteristic and the spurious interference rejection characteristic can be improved remarkably stably.

It is possible to directly connect to a multifunctional digital control system for computer application. As a result, it is possible to realize highly sophisticated multifunctional control of the amplifier and the equipment in which it is installed, as well as highly accurate amplification tuning control. That is, it is possible to realize an amplifying device that exhibits a sufficiently stable amplification tuning function according to the highly accurate control of the multifunctional digital control system.

In the tuner used for the amplifying device, the resonance circuit can be constructed and the tuning function can be fulfilled without providing the connecting lead between the inductor and the capacitor. This can eliminate the generation of lead inductance and stray capacitors in the tuner. Therefore, unexpected resonance other than the resonance at the target tuning frequency does not exist over a wide frequency band. As a result, stable frequency selection characteristics can be secured, the level of the fundamental wave in the signal to be amplified can be made sufficiently high, and its harmonic component level can be sufficiently reduced. Therefore, the distortion in the amplified signal can be made extremely stable and small. Also, by ensuring stable frequency selection characteristics, it is possible to sufficiently reduce the problems of intermodulation interference and spurious interference that occur when a large number of signals are simultaneously amplified.

Since it is possible to realize an amplifying device having a tuner that can be modularized, mechanical vibration does not cause constant fluctuations of the inductance and capacitance in the tuner, so that the amplification tuning characteristic is extremely stable. Further, by using a material whose dielectric constant has a small temperature dependence as a dielectric constituting the tuner, it is possible to make the capacitance variation due to a change in ambient temperature extremely small, thereby making the tuning characteristic extremely stable. be able to. Therefore, the amplification gain characteristic and the unnecessary interference signal elimination characteristic in the amplification device do not depend on the change in the ambient conditions, and the characteristics are stably secured not only in the initial stage of configuring the amplification device but also for a very long period of time. be able to.

It is possible to realize a very simple form of the amplifying device as well as having an integrated tuner by a simple structure. Furthermore, it becomes possible to realize an ultra-thin and compact amplification device. Therefore, the amount of unnecessary radiation of the amplified signal radiated from the tuner can be made extremely small. This not only stabilizes the amplifying operation of the amplifying device itself, but also does not interfere with other amplifying systems.

If the circuit board forming the amplifier is shared as the dielectric used for the tuner in the amplifier, the mounting form in the amplifier can be rationalized. Further, by doing so, it is possible to significantly reduce the number of parts constituting the tuner, and it is possible to realize an amplifying device suitable for mass production and also to significantly reduce the manufacturing cost.

That is an excellent effect.

[Brief description of drawings]

FIG. 1 is a configuration circuit diagram of a conventional amplifier, FIG. 2 is a perspective view of components of a tuner used in a conventional tuner, and FIGS. 3 to 5 are amplifiers in an embodiment of the present invention. FIG. 6 to FIG. 14 are structural circuit diagrams of a tuner used in an amplifying apparatus according to an embodiment of the present invention. In FIGS. 6 to 12, (a) is a front view and (b) is a side view. Fig., (C) is a back view, Fig. 13 is a side view, Fig. 14 is a top view of what is shown in Fig. 13, and Figs. 15 to 17 are tuners used in the amplifying device in the embodiment of the present invention. FIG. 7 is an explanatory diagram of an operation principle of FIG. 17 ... Amplifier, 16,20 ... Tuner, 28,29 ...
... Variable tuner, 26,27 ... Voltage variable capacitance diode, 32 ... DA converter, 34 ... Digital signal processor, 36 ... Code converter, 22,2
3, 24, 25, 101, 102, 104, 105, 1
07,108,110,111,113,114,11
6,117,119,120,122,123,12
5,126,70,71,75,76 ... Transmission line electrodes,
100, 103, 106, 109, 112, 115, 1
18, 121, 124 ... Dielectric.

Claims (10)

[Claims] 1. A position of a terminal connected to the ground of each of a main electrode and a sub electrode having at least one or more predetermined bending angle or bending ratio and a bending portion showing a predetermined bending direction, which are opposed to each other via a dielectric. A variable voltage reactance element is connected to the open terminal of a given main electrode or sub-electrode of a single or multiple tuners, which are set so that they do not face each other in mutually opposite position relations. In addition, the input terminal or output terminal of the amplifier is connected to the open terminal of the predetermined main electrode or the sub-electrode of the tuner, and the tuning control code is input to the control unit including the DA converter. And an amplifier device which supplies an analog output voltage in the control unit to the voltage variable reactance element. 2. The amplifier according to claim 1, wherein a latch is placed in front of the D-A converter to serve as a control unit. 3. The amplifying device according to claim 1 or 2, wherein the control section is preliminarily provided with a RAM or a ROM. 4. The amplifying device according to claim 1, wherein the control unit is preliminarily provided with a code converter for converting a serial input code into a parallel output code. 5. The amplifying device according to claim 1, wherein the electrode has a spiral shape. 6. The method according to any one of claims 1 to 5, wherein the length of one electrode is set shorter than the length of the other electrode, and the two electrodes are opposed to each other at a predetermined portion. Amplification device. 7. The amplifying device according to claim 1, wherein a part or the whole of each electrode is provided inside the dielectric. 8. The amplifying device according to claim 1, wherein electrodes are provided at an inner peripheral portion or an outer peripheral portion of a cylindrical or square-shaped dielectric material. 9. The amplification according to any one of claims 1 to 8, wherein a predetermined portion of one electrode or both electrodes is incised and set and controlled within a predetermined amplification tuning frequency range. apparatus. 10. The method according to any one of claims 1 to 9, wherein a predetermined portion of one electrode or both electrodes is set as a terminal connected to the ground to control the setting within a predetermined amplification tuning frequency range. The amplification device according to claim 1.