A dual-frequency dielectric resonant antenna applied to 5G communication and communication equipment

Abstract

The application provides a dual-frequency dielectric resonant antenna applied to 5G communication and communication equipment, the dual-frequency dielectric resonant antenna applied to 5G communication comprises a dielectric plate, a metal plate attached to the first surface of the dielectric plate, a dielectric resonator installed on the metal plate, a feed microstrip attached to the second surface of the dielectric plate and a ring body installed on the metal plate, the metal plate is provided with a feed gap, the dielectric resonator covers the feed gap, the first end of the feed microstrip is arranged on the side of the dielectric plate, the second end of the feed microstrip is arranged below the dielectric resonator, and the ring body surrounds the dielectric resonator, and the dual-frequency dielectric resonant antenna applied to 5G communication adopts a simple structure and has a dual-frequency function in a basic mode and a high-order mode.

Description

Technical Field

[0001] This invention relates to the field of antenna technology, and in particular to a dual-frequency dielectric resonant antenna and communication device for 5G communication. Background Technology

[0002] According to 3GPP TS38.101-2 5G Terminal RF Technical Specification and TR38.817 Terminal RF Technical Report, the 5G mmWave frequency bands include N257 (26.5-29.5GHz), n258 (24.25-27.25GHz), n260 (37-40GHz), n261 (27.5-28.35GHz), and the newly added n259 (39.5-43GHz). Clearly, in 5G millimeter-wave mobile terminal communication, we can use multiple antennas to cover the above frequency bands, but this will inevitably reduce the terminal space. Therefore, using a single antenna to achieve dual-band or even multi-band characteristics will simplify the structure and design process of integrated antennas.

[0003] Generally speaking, multi-band microstrip patch antennas are the first choice for most designers because they have advantages such as simple structure, clear principle, and acceptable performance. However, their drawbacks, such as the need for complex dielectric substrate stack-up structures and non-integrated dual-band implementation methods, pose challenges to the application of current 5G millimeter-wave dual-band antennas.

[0004] Therefore, there is an urgent need for a simple structure and a dual-band antenna that can operate in both basic and higher-order modes. Summary of the Invention

[0005] The main objective of this invention is to provide a dual-frequency dielectric resonant antenna and communication device for 5G communication that solves the above-mentioned technical problems.

[0006] The present invention provides a dual-band dielectric resonant antenna for 5G communication in a first aspect, comprising a dielectric substrate, a metal plate attached to a first surface of the dielectric substrate, a dielectric resonator mounted on the metal plate, a feed microstrip attached to a second surface of the dielectric substrate, and a ring mounted on the metal plate. The metal plate is provided with feed slots, the dielectric resonator covers a plurality of the feed slots, a first end of the feed microstrip is located on the side of the dielectric substrate, a second end of the feed microstrip is located below the dielectric resonator, and the ring encloses the dielectric resonator therein.

[0007] The height of the ring body is half the height of the dielectric resonator; the ring body is provided with multiple legs mounted on a metal plate, the legs being used to elevate the ring body to the same height as the dielectric resonator.

[0008] Preferably, the radius of the ring is 0.3λ, where λ is the wavelength.

[0009] Preferably, the support legs are provided in four positions, and the four support legs are evenly arranged in a circular array on the ring body.

[0010] Preferably, the power supply gap is a rectangular slot.

[0011] Preferably, there are two power supply gaps, which are arranged side by side.

[0012] In a second aspect, the present invention provides a communication device comprising a dual-frequency dielectric resonant antenna for 5G communication as described in any of the above embodiments.

[0013] The beneficial effects of this invention are as follows: It provides a dual-band dielectric resonant antenna and communication device for 5G communication. The dual-band dielectric resonant antenna for 5G communication includes a dielectric substrate, a metal plate attached to a first surface of the dielectric substrate, a dielectric resonator mounted on the metal plate, a feed microstrip attached to a second surface of the dielectric substrate, and a ring mounted on the metal plate. The metal plate has a feed slot, the dielectric resonator is pressed against the feed slot, the first end of the feed microstrip is placed on the side of the dielectric substrate, the second end of the feed microstrip is placed below the dielectric resonator, and the ring surrounds the dielectric resonator. This dual-band dielectric resonant antenna for 5G communication adopts a simple structure and has dual-band functionality in both fundamental mode and higher-order modes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the structure of an embodiment of the present invention. Figure 3 ;

[0017] Figure 4 This is an exploded view of an embodiment of the present invention;

[0018] Figure 5 This is a graph showing the relationship between the scaling factor and (R / H) of HEM111 (frequency F1) and HEM113 (frequency F2) in the embodiments of the present invention.

[0019] Figure 6 This is a comparison chart of S-parameter curves with and without a ring in the embodiments of the present invention.

[0020] Table of labels in the diagram:

[0021] Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains.

[0024] The terms "first," "second," and similar words used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] See appendix Figure 1 -Appendix Figure 6 The present invention provides a dual-band dielectric resonant antenna for 5G communication in a first aspect, comprising a dielectric substrate 100, a metal plate 200 attached to a first surface of the dielectric substrate 100, a dielectric resonator 300 mounted on the metal plate 200, a feed microstrip 400 attached to a second surface of the dielectric substrate 100, and a ring 500 mounted on the metal plate 200. The metal plate 200 is provided with a feed slot 201, the dielectric resonator 300 covers the feed slot 201, the first end of the feed microstrip 400 is located on the side of the dielectric substrate 100, the second end of the feed microstrip 400 is located below the dielectric resonator 300, and the ring 500 surrounds the dielectric resonator 300 therein.

[0027] Specifically, in this embodiment, the dual-band dielectric resonator antenna used for 5G communication is designed to cover the N257 and N260 frequency bands and provide good radiation performance in both bands. The dielectric constant of the dielectric resonator is 10, and the curve between the scaling factor F2 / F1 and (R / H) is obtained through multiple simulations, as shown in the attached figure. Figure 5 As shown, F1 is the fundamental mode HEM111 of the dielectric resonator, and F2 is the fundamental mode HEM113 of the dielectric resonator;

[0028] Where C is the speed of light, DK is the dielectric constant of the dielectric resonator, R is the radius of the dielectric resonator, and H is the height of the dielectric resonator. Figure 5 The curve and the above formula can be used to obtain the target dual frequency of the dual-frequency dielectric resonant line antenna used for 5G communication.

[0029] Furthermore, the height of the ring 500 is half the height of the dielectric resonator 300, and the radius of the ring 500 is 0.3λ, where λ is the wavelength.

[0030] Furthermore, the ring body 500 is provided with multiple legs 501 mounted on the metal plate 200. The legs 501 are used to raise the ring body 500 to the same height as the dielectric resonator 300. There are four legs 501, which are evenly arranged in a circular array on the ring body 500. The power supply gap 201 is a rectangular slot. There are two power supply gaps 201, which are arranged side by side.

[0031] As attached Figure 1-4 As shown, the ring 500 is attached around the dielectric resonator 300, and the ring 500 has a circular ring structure, while the dielectric resonator 300 has a cylindrical structure, as shown in the attached figure. Figure 2 As shown in the diagram, based on the S-parameter comparison charts of the ring structure with and without the ring 500, it can be clearly seen that the dual-band dielectric resonant antenna for 5G communication, after adding the ring 500, has a higher frequency in the fundamental mode HEM111 compared to the one without the ring 500. This gives the dual-band dielectric resonant antenna for 5G communication good adaptability in different scenarios under both frequencies.

[0032] The present invention provides a communication device in a second aspect, comprising a dual-frequency dielectric resonant antenna for 5G communication according to any of the above-described schemes.

[0033] The above description is merely an embodiment of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept, but these improvements all fall within the protection scope of the present invention.

Claims

1. A dual-band dielectric resonant antenna for 5G communication, characterized in that, include: Medium plate; A metal plate is attached to the first surface of the dielectric substrate, and the metal plate is provided with a power feeding gap; A dielectric resonator is mounted on the metal plate, and the dielectric resonator is pressed against the plurality of feed slots; A feed microstrip is attached to the second surface of the dielectric substrate, with the first end of the feed microstrip positioned on the side of the dielectric substrate and the second end of the feed microstrip positioned below the dielectric resonator; A ring mounted on the metal plate encloses the dielectric resonator therein; The height of the ring body is half the height of the dielectric resonator; the ring body is provided with multiple legs mounted on a metal plate, the legs being used to elevate the ring body to the same height as the dielectric resonator.

2. The dual-band dielectric resonant antenna for 5G communication according to claim 1, characterized in that, The radius of the ring is 0.3λ, where λ is the wavelength.

3. The dual-band dielectric resonant antenna for 5G communication according to claim 1, characterized in that, The support leg is provided in four parts, and the four support legs are evenly arranged in a circular array on the ring body.

4. The dual-band dielectric resonant antenna for 5G communication according to claim 1, characterized in that, The power supply gap is a rectangular slot.

5. The dual-band dielectric resonant antenna for 5G communication according to claim 4, characterized in that, There are two power supply gaps, which are arranged side by side.

6. A communication device, characterized in that, Includes the dual-band dielectric resonant antenna for 5G communication as described in any one of claims 1-5 above.

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