An extremely wideband continuously tunable antenna system

Abstract

The present invention discloses an extremely broadband continuous regulation antenna system, comprising: an extremely wide voltage control system, a spherical electrode pair, and a rectangular loop electrode pair; wherein the extremely wide voltage control system is respectively connected to the spherical electrode pair and the rectangular loop electrode pair to provide voltage signals to the spherical electrode and the rectangular loop electrode respectively, and the straight line where the spherical electrode pair is located is parallel to the rectangular loop electrode pair; a box is arranged below the rectangular loop electrode pair, wherein a saline solution is loaded inside the box, the spherical electrode pair is arranged inside the saline solution and at both ends of the box; a piezoelectric film is arranged between the rectangular loop electrode pair, and a alloy material film and a radiation patch are sequentially arranged on the side of the rectangular loop electrode pair away from the spherical electrode. Through the above technical solution, the present invention can perform extremely broadband continuous regulation, can meet the coverage from ultra-low frequency to millimeter wave band, and the working frequency can be adjusted and controlled, realizing integrated communication from water to air and extremely broadband spectrum sensing.

Description

Technical Field

[0001] The present invention belongs to the technical field of ultra-low frequency to millimeter wave propagation, and in particular relates to an extremely wideband continuously controllable antenna system. Background Art

[0002] In modern communication applications, more and more frequency bands have been used, resulting in increasingly scarce spectrum resources. Therefore, spectrum resources have become an important goal for both the military and civilians. Especially since the electromagnetic spectrum has been put on the agenda, the detection and utilization of spectrum resources has become an important research topic. Especially driven by the demand for 6G, spectrum resources below 6GHz almost cover all the spectrum, making it difficult to serve other new communications and radar resources. In recent years, communication technology has developed towards millimeter wave and very low frequency bands, even extending to terahertz in high frequency bands and ultra-low frequency in low frequency bands. The coverage frequency of electromagnetic waves is getting wider and wider, so realizing spectrum perception within an extremely wide frequency range and controlling the spectrum resources in operation have become important means of effectively utilizing spectrum resources. It is also an important way to perceive and detect unknown signals, which can lay the foundation for communication and perception security.

[0003] The current frequency has covered ultra-low frequency to millimeter wave, and even terahertz frequency band, and the design of traditional sensing antenna is directly proportional to the wavelength of the working frequency. In the low frequency band, the wavelength of the antenna is very long, resulting in a large size of the antenna. In this frequency band, the wavelength of the antenna decreases with the increase of frequency, so the size of the antenna becomes an electrically small antenna or even a few tenths of the wavelength relative to the low frequency band. Therefore, it is difficult to achieve the integration and integrated design of the antenna with extremely wide coverage bandwidth, covering low frequency to high frequency.

[0004] However, ULF covers lower frequencies, and antennas can directly penetrate the ground, walls, and water, and can achieve hidden communications and detection, so the development of ULF is of great significance. However, traditional ULF antennas are difficult to miniaturize, and it is difficult to achieve integrated design and integration with microwave bands. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes an extremely wideband continuously control antenna system, which provides an extremely wideband antenna with an integrated design and multiple integration methods. It mainly adopts current excitation and voltage excitation to achieve control, and cooperates with the antenna structure to form an extremely wideband continuous control, which can meet the coverage of ultra-low frequency to millimeter wave bands, and the spectrum can be adjusted and controllable, realizing integrated communication from water to air and extremely wideband spectrum perception.

[0006] To achieve the above object, the present invention provides an extremely wideband continuously controllable antenna system, comprising:

[0007] Ultra-wide voltage control system, spherical electrode pair, rectangular ring electrode pair; wherein the ultra-wide voltage control system is respectively connected to the spherical electrode pair and the rectangular ring electrode pair to provide voltage signals to the spherical electrode and the rectangular ring electrode respectively, and the straight line where the spherical electrode pair is located is parallel to the rectangular ring electrode pair;

[0008] A box is arranged below the rectangular ring electrode pair, wherein a saline solution is loaded inside the box, and the spherical electrode pair is arranged inside the saline solution and at both ends of the box;

[0009] A piezoelectric thin film is arranged between the rectangular ring electrode pair, and a alloy material thin film and a radiation patch are sequentially arranged on the side of the rectangular ring electrode pair away from the spherical electrode.

[0010] Optionally, the ultra-wide voltage control system includes a filter and a rheostat connected in sequence, the filter is connected to a voltage source, and the rheostat is respectively connected to the spherical electrode pair and the rectangular ring electrode pair.

[0011] Optionally, the rectangular ring electrode pair includes a positive rectangular ring electrode and a negative rectangular ring electrode, wherein the negative rectangular ring electrode, the piezoelectric thin film, the positive rectangular ring electrode, the alloy material thin film and the radiation patch are sequentially arranged from bottom to top.

[0012] Optionally, the piezoelectric thin film is a barium titanate piezoelectric thin film.

[0013] Optionally, the alloy material thin film is a rare earth-iron alloy material thin film.

[0014] Optionally, the spherical electrode pair is made of silver chloride.

[0015] Optionally, corresponding electrode feeding end faces are arranged on the rectangular ring electrode pair and the spherical electrode pair, and the electrode feeding end faces are silver-plated thin film coatings.

[0016] Optionally, the radiation patch is a corrugated horn-shaped patch and is excited by a microwave signal.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects:

[0018] The present invention provides an extremely wideband continuous tuning antenna system. A variable resistor and a filter are used to design an extremely wide voltage control system to control the voltage required by the electrodes to excite the spherical electrode and the rectangular ring electrode, and provide a broadband excitation voltage for the spherical electrode and the rectangular ring electrode to achieve broadband frequency tuning. A pair of spherical electrodes placed inside a saline solution form a conductive fluid field to realize low-frequency band communication, and the working bandwidth and frequency of the current field can be adjusted by adjusting the pressure difference between the positive and negative electrodes of the spherical electrode. A rare earth-iron alloy material thin film is bonded above the rectangular ring electrode, and the micro-displacement deformation generated by the rectangular ring electrode under voltage drive causes the thin film to generate corresponding frequencies. The broadband low-frequency radiation is formed by the current field and the low-frequency radiation driven by the micro-displacement deformation of the rare earth-iron alloy material thin film. By adjusting the working voltages of the spherical electrode and the rectangular ring electrode, continuous tuning from ultra-low frequency to megahertz antennas can be achieved, and the corrugated horn-shaped patch bonded on the rare earth-iron alloy material thin film generates radiation in the gigahertz band under the excitation of microwave signals, thereby realizing extremely wideband electromagnetic radiation. Compared with traditional ultra-low frequency antennas, this antenna has extremely small physical dimensions, realizes the integrated design and integration from ultra-low frequency to microwave bands, can perform continuous tuning of extremely wideband, can meet the coverage from ultra-low frequency to millimeter wave bands, and the operating frequency can be adjusted and controlled, realizing integrated communication from water to air and extremely wideband spectrum sensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0020] Figure 1 is the front view of the overall structure of the extremely wideband continuous tuning antenna system according to the embodiment of the present invention;

[0021] Figure 2 is the three-dimensional structure diagram of the rectangular ring electrode part of the extremely wideband continuous tuning antenna system according to the embodiment of the present invention;

[0022] Among them, 1, radiation patch; 2, alloy material thin film; 3, positive rectangular ring electrode; 4, piezoelectric thin film; 5, negative rectangular ring electrode; 6, spherical electrode pair; 7, saline solution; 8, extremely wide voltage control system; 81, variable resistor; 82, filter; 31, first electroplated silver thin film coating; 32, second electroplated silver thin film coating. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail this application.

[0024] It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0025] The present invention discloses an extremely wideband continuously tunable antenna system, including an extremely wide voltage control system 8, a spherical electrode pair 6, a piezoelectric film 4, a saline solution 7, a rectangular ring electrode pair, an alloy material film 2, and a radiation patch 1. The extremely wideband piezoelectric control system 8 is composed of a rheostat 81 and a filter 82 connected in sequence. By adjusting the resistance value of the rheostat 81, the voltage value is changed, and filtering is performed through the filter 82 to achieve the voltage required to control the electrodes to excite the spherical electrode pair 6 and the rectangular ring electrode pair. The positive and negative electrodes of the spherical electrode pair 6 are respectively connected to the positive and negative electrodes of the voltage, and are placed inside the saline solution 7. By controlling the voltage applied across the spherical electrode pair, a conductive fluid field is formed inside the saline solution 7 to realize communication in the low-frequency band; the rectangular ring electrode pair generates a micro-displacement under the drive of the voltage, causing the alloy material film 2 of the rare earth-iron alloy material to generate a corresponding resonant frequency. Through the radiation of the current field and the alloy material film 2, broadband low-frequency radiation is formed, and a corrugated horn-shaped radiation patch 1 is coated on the alloy material film 2, and an extremely wideband radiation is generated by exciting with a microwave signal source. An extremely wideband continuously tunable antenna system designed by the present invention can cover the ultra-low frequency to millimeter wave band, and the spectrum can be adjusted and controlled, realizing integrated communication from water to air and extremely wideband spectrum sensing.

[0026] To solve the integrated design of traditional extremely wideband antennas and the extremely wideband coverage, the present invention provides an extremely wideband continuously tunable antenna system, aiming to realize the continuous frequency band control from ultra-low frequency to microwave through the combination of different excitation methods and antenna design methods with different principles, covering the ultra-low frequency to millimeter wave band, and laying a foundation for the extremely wideband sensing of the electromagnetic spectrum.

[0027] To achieve the above object, the present invention provides the following solution: an extremely wideband continuously tunable antenna system.

[0028] Including: an extremely wide voltage control system 8, a spherical electrode pair 6, a piezoelectric film 4, a box of saline solution 7, a rectangular ring electrode pair, an alloy material film 2, and a radiation patch 1; wherein the rectangular ring electrode pair includes a positive rectangular ring electrode 3 and a negative rectangular ring electrode 5.

[0029] The extremely wideband piezoelectric control system 8 is composed of a rheostat 81 and a filter 82. By adjusting the resistance value of the rheostat 81, the voltage value is changed, and filtering is performed through the filter 82 to achieve the voltage required to control the electrodes to excite the spherical electrode pair 6 and the rectangular ring electrode pair;

[0030] The positive and negative electrodes of the spherical electrode pair 6 are sequentially connected to the positive and negative electrodes of the voltage respectively, and are placed inside the saline solution 7. By controlling the voltage applied across the spherical electrode pair 6, an electric current field is formed inside the saline solution 7 to achieve communication in the low-frequency band;

[0031] The rectangular ring electrode pair generates a micro-displacement under the drive of the voltage, causing the alloy material thin film 4 of the rare earth-iron alloy material to generate a corresponding resonance frequency. Through the radiation of the electric current field and the alloy material thin film 4, broadband low-frequency radiation is formed;

[0032] The radiation patch 1 adopts a corrugated horn-shaped patch. The radiation patch 1 is adhered on the alloy material thin film 2 and is excited by a microwave signal;

[0033] The rectangular ring electrode pair is installed above the box loaded with the saline solution 7. Among them, the negative rectangular ring electrode 5 is set as the negative electrode in the rectangular ring electrode pair above the box, and the positive rectangular ring electrode 3 is set as the positive electrode in the rectangular ring electrode pair away from the box. The piezoelectric thin film 4 is arranged between the negative rectangular ring electrode 5 and the positive rectangular ring electrode 3. The straight line where the spherical electrode pair is located is parallel to the rectangular ring electrode pair;

[0034] The radiation patch 1 is excited by a microwave signal;

[0035] Both the rectangular ring electrode pair and the spherical electrode pair 6 are connected to the voltage source. Both the rectangular ring electrode pair and the spherical electrode pair 6 include positive and negative electrodes; among them, the positive electrode in the rectangular ring electrode pair and the positive electrode in the spherical electrode pair 6 are connected to the positive electrode of the voltage source, and the negative electrode in the rectangular ring electrode pair and the negative electrode in the spherical electrode pair 6 are connected to the negative electrode of the voltage source;

[0036] The spherical electrode pair 6 is fixedly installed in the saline solution 7;

[0037] The alloy material thin film 4 adopts a rare earth-iron alloy material thin film. The alloy material thin film 4 is adhered above the negative rectangular ring electrode 5 and below the positive rectangular ring electrode 3, so that the rare earth-iron alloy material thin film is located between the positive rectangular ring electrode 3 and the negative rectangular ring electrode 5;

[0038] The feeding end face of the electrode is an electroplated silver thin film coating, which is respectively attached to the rectangular ring electrode and the spherical electrode pair 6. Among them, the outer side wall surface of the positive rectangular ring electrode 3 in the rectangular ring electrode is covered with or coated with the first electroplated silver thin film coating 31, and the outer side wall surface of the negative rectangular ring electrode 5 is covered with or coated with the second electroplated silver thin film coating 32. The outer surfaces of the positive spherical electrode and the negative spherical electrode of the spherical electrode pair 6 are all covered with or coated with the electroplated silver thin film coating; the electrode is connected to the ultra-wideband piezoelectric control system 8 through the electroplated silver thin film coating on the feeding end face of the electrode to optimize the electrical connection and improve the energy efficiency.

[0039] The voltage is simultaneously applied to the rectangular ring electrode pair and the spherical electrode pair 6. The positive and negative electrodes of the rectangular ring electrode pair and the spherical electrode pair 6 are respectively connected to the positive electrode and the negative electrode of the voltage source;

[0040] The spherical electrode pair 6 respectively includes a positive spherical electrode and a negative spherical electrode as the positive and negative electrodes of the spherical electrode pair 6, and both are made of silver chloride. The positive spherical electrode and the negative spherical electrode are respectively placed at both ends of a box filled with a saline solution 7, and are respectively connected to the positive and negative poles of the voltage source;

[0041] The rectangular ring electrode pair is composed of a positive rectangular ring electrode 3 and a negative rectangular ring electrode 5 as the positive and negative electrodes. The positive rectangular ring electrode 3 and the negative rectangular ring electrode 5 are respectively connected to the positive and negative poles of the voltage source, and the positive rectangular ring electrode 3 and the negative rectangular ring electrode 5 are respectively bonded to both sides of the piezoelectric film 4. The piezoelectric film 4 uses a barium titanate film. Under the action of an applied voltage, the piezoelectric film 4 generates a micro-deformation, and the micro-deformation drives the alloy material film 2 adhered above the positive rectangular ring electrode 3 to generate an electromagnetic wave with the same frequency as the micro-deformation frequency. The alloy material film 2 uses a rare earth-iron alloy material film.

[0042] In the box containing the saline solution 7, under the action of the positive and negative electrode pressure difference, due to the conductive effect of the saline solution 7, an electric current field is formed, and the positive and negative electrode pressure difference can be adjusted to adjust the working bandwidth and frequency of the electric current field;

[0043] The box containing the saline solution 7, the negative rectangular ring electrode 5, the piezoelectric film 4, the positive rectangular ring electrode 3, the alloy material film 2 and the radiation patch 1 are adhesively bonded together from bottom to top in sequence;

[0044] The positive and negative electrodes in the spherical electrode pair 6 and the rectangular ring electrode pair both appear in pairs and are applied with the same voltage. In the box containing the saline solution 7, the spherical electrodes form an electric current field through the conduction of the saline solution 7. The rectangular ring electrode pair is arranged on both sides of the piezoelectric film 4 to drive the piezoelectric film 4 to generate a micro-deformation and drive the alloy material film 2 to generate an electromagnetic wave. Through two different resonance generation mechanisms, different electromagnetic waves are radiated.

[0045] The working voltages of the spherical electrode pair 6 and the rectangular ring electrode pair can be different or the same to achieve continuous regulation of the antenna from ultra-low frequency to megahertz. The radiation patch 1 adhered above the alloy material film 2 generates radiation in the gigahertz frequency band under the excitation of a microwave signal, thereby achieving extremely wideband electromagnetic radiation.

[0046] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0047] Reference Figure 1 and Figure 2, the present invention provides an extremely wideband continuously adjustable antenna system, comprising: an extremely wide voltage control system 8, a spherical electrode pair 6 including a pair of positive and negative spherical electrodes, a piezoelectric thin film 4, a box of saline solution 7, a rectangular ring electrode pair including a pair of positive and negative rectangular ring electrodes, an alloy material thin film 2, and a radiation patch 1.

[0048] Among them, the rectangular ring electrode pair includes a negative rectangular ring electrode 5 and a positive rectangular ring electrode 3. The alloy material thin film 2 is a rare earth-iron alloy material thin film, the piezoelectric thin film 4 is a barium titanate thin film, and the radiation patch 1 is a corrugated horn-shaped patch.

[0049] The box containing the saline solution 7, the negative rectangular ring electrode 5, the piezoelectric thin film 4, the positive rectangular ring electrode 3, the alloy material thin film 2, and the radiation patch 1 are adhesively bonded together in sequence from bottom to top; the radiation patch 1 is adhesively bonded on the alloy material thin film 2, the alloy material thin film 2 is adhesively bonded above the positive rectangular ring electrode 3, the piezoelectric thin film 4 is disposed between the positive rectangular ring electrode 3 and the negative rectangular ring electrode 5, the negative rectangular ring electrode 5 is installed above the box containing the saline solution 7, the spherical electrode pair 6 is installed in the saline solution 7. Both the rectangular ring electrode pair and the spherical electrode pair include a positive electrode and a negative electrode, and the electrode feeding end faces are electroplated silver thin film coatings, which are respectively attached to the rectangular ring electrode pair and the spherical electrode pair 6.

[0050] The extremely wideband piezoelectric control system 1 is composed of a rheostat 81 and a filter 82. By adjusting the resistance value of the rheostat 81, the voltage signal applied to the electrodes is dynamically adjusted. The filter 82 ensures the stability and purity of the voltage signal, and guarantees the high-frequency band radiation and low-frequency band radiation operations of the antenna system.

[0051] The spherical electrode pair 6 includes positive and negative spherical electrodes, both made of silver chloride, respectively connected to the positive and negative poles of the voltage source through the extremely wide voltage control system, and placed inside the saline solution 7. By controlling the voltage applied across the spherical electrode pair, a conductive fluid field is formed inside the saline solution 7 to achieve low-frequency band communication.

[0052] The rectangular ring electrode pair is composed of a positive rectangular ring electrode 3 and a negative rectangular ring electrode 5 as positive and negative electrodes. The positive rectangular ring electrode 3 and the negative rectangular ring electrode 5 are respectively connected to the positive and negative poles of the voltage source through the extremely wide voltage control system, and the positive rectangular ring electrode 3 and the negative rectangular ring electrode 5 are respectively adhesively bonded to both sides of the piezoelectric thin film 4. Under the action of an applied voltage, the piezoelectric thin film 4 generates a micro-deformation, and the micro-deformation drives the alloy material thin film 2 pasted above the positive rectangular ring electrode 3 to generate electromagnetic waves with the same frequency as the micro-deformation. The introduction of this resonance mechanism significantly improves the working frequency adjustment ability and radiation efficiency of the system.

[0053] In the box containing the saline solution 7, the spherical electrode pair 6 forms a conductive current field under the action of the pressure difference between the positive and negative electrodes of the spherical electrode due to the conductivity of the saline solution. The pressure difference between the positive and negative electrodes of the spherical electrode can be adjusted to adjust the working bandwidth and frequency of the current field.

[0054] The positive and negative electrodes in the spherical electrode pair 6 and the rectangular ring electrode pair both appear in pairs and are applied with the same voltage. The spherical electrode pair in the box containing the saline solution 7 forms a current field by the conductivity of the saline solution. The rectangular ring electrode pair is arranged on both sides of the piezoelectric film 4 to drive the piezoelectric film 4 to generate micro-deformations and drive the alloy material film 2 to generate electromagnetic waves with the same frequency as the micro-deformations, realizing the radiation of different electromagnetic waves through two different resonance generation mechanisms.

[0055] Based on the above-mentioned electromagnetic wave radiation generation mechanism, the working voltages of the spherical electrode pair 6 and the rectangular ring electrode pair can be different or the same to achieve continuous regulation of the antenna from ultra-low frequency to megahertz. The radiation patch 1 adhered to the alloy material film 2 generates radiation in the gigahertz band under the excitation of microwave signals, thus realizing extremely broadband electromagnetic radiation.

[0056] Through the carefully designed hierarchical structure and integrated components, the extremely broadband continuous regulation antenna system realizes integration, miniaturization and integration. Key components such as the spherical electrode pair 6, rectangular ring electrode pair, piezoelectric film 4, and alloy material film 2 inside the system all adopt precise bottom-up bonding technology to achieve a compact layout. The ingenious stacking of the box containing the saline solution 7, rectangular ring electrodes and piezoelectric film 4 not only reduces the space occupation, but also optimizes the electrical connection and improves the energy efficiency through the silver-plated film coating on the electrode feeding end face. Overall, this highly integrated structural design and the application of the fine regulation principle enable the antenna system to achieve miniaturization and portability while maintaining the extremely broadband coverage ability, and are very suitable for application scenarios with strict space requirements.

[0057] The antenna system of the present invention can achieve extremely broadband coverage from ultra-low frequency to gigahertz band, providing the possibility for multi-band communication. Due to the conductive fluid field formed by the spherical electrode pair 6 in the saline solution 7, the system can also achieve effective communication in the underwater environment. At the same time, the coordinated work of the rectangular ring electrode pair and the alloy material film 2 ensures the communication ability in the air environment, realizing seamless connection between underwater and air communication.

[0058] The antenna system of the present invention can be applied to intelligent spectrum management. By continuously regulating the voltage, it can monitor and adjust the spectrum usage in real time and optimize the allocation of spectrum resources. In addition, the broadband characteristics of the system also make it an ideal choice for electromagnetic compatibility testing, capable of evaluating the electromagnetic interference and immunity of equipment at different frequencies.

[0059] To sum up, compared with traditional ultra-low frequency antennas, the ultra-wideband continuously control antenna system designed by the present invention has extremely small physical dimensions, and realizes integrated design and integration from ultra-low frequency to microwave frequency bands. It can perform continuous control of ultra-wideband, can meet the coverage of ultra-low frequency to millimeter wave bands, and the operating frequency can be adjusted and controlled, realizing integrated communication from water to air and ultra-wideband spectrum perception.

[0060] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An extremely wideband continuously adjustable antenna system, characterized in that, Comprising: Ultra-wide voltage control system, spherical electrode pair, rectangular ring electrode pair; Wherein the ultra-wide voltage control system is respectively connected to the spherical electrode pair and the rectangular ring electrode pair for providing voltage signals to the spherical electrode and the rectangular ring electrode respectively, and the straight line where the spherical electrode pair is located is parallel to the rectangular ring electrode pair; A box is arranged below the rectangular ring electrode pair, wherein a saline solution is loaded inside the box, and the spherical electrode pair is arranged inside the saline solution and at both ends of the box; A piezoelectric thin film is arranged between the rectangular ring electrode pairs, and a alloy material thin film and a radiation patch are sequentially arranged on the side of the rectangular ring electrode pair far from the spherical electrode; The ultra-wide voltage control system includes a filter and a rheostat connected in sequence, the filter is connected to a voltage source, and the rheostat is respectively connected to the spherical electrode pair and the rectangular ring electrode pair; The rectangular ring electrode pair includes a positive rectangular ring electrode and a negative rectangular ring electrode, wherein the negative rectangular ring electrode, the piezoelectric thin film, the positive rectangular ring electrode, the alloy material thin film and the radiation patch are sequentially arranged from bottom to top.

2. The system according to claim 1, wherein The piezoelectric thin film is a barium titanate piezoelectric thin film.

3. The system according to claim 1, wherein The alloy material thin film is a rare earth-iron alloy material thin film.

4. The system according to claim 1, wherein The spherical electrode pair is made of silver chloride.

5. The system according to claim 1, wherein Corresponding electrode feeding end faces are arranged on the rectangular ring electrode pair and the spherical electrode pair, and the electrode feeding end face is a silver-plated thin film coating.

6. The system according to claim 1, wherein The radiation patch is a corrugated horn-shaped patch.

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