CN107196056B - Small planar ultra-wideband antenna - Google Patents
Small planar ultra-wideband antenna Download PDFInfo
- Publication number
- CN107196056B CN107196056B CN201710487565.0A CN201710487565A CN107196056B CN 107196056 B CN107196056 B CN 107196056B CN 201710487565 A CN201710487565 A CN 201710487565A CN 107196056 B CN107196056 B CN 107196056B
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- Prior art keywords
- circle
- dielectric substrate
- medium substrate
- blind opening
- microstrip feeder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a small-sized planar ultra-wideband antenna, which comprises a medium substrate, a slot, a microstrip feeder and an SMA radio frequency connector, wherein the medium substrate is an FR4 board with a relative dielectric constant of 4.4, the slot is a round flat groove with a diameter of 20-24mm, the round flat groove is used for removing a round metal layer on the upper surface of the medium substrate, an unfilled corner is arranged in the horizontal direction of the circle, the unfilled corner has a radius of a=11-15 mm, the angle θ=13-17 DEG is arranged at the lower end of the circle along the vertical diameter downwards, a rectangular blind opening is arranged at the lower end of the circle, the intersection point of the rectangular blind opening and the circle is 11mm away from the bottom end surface of the medium substrate, a strip-shaped metal microstrip feeder is arranged on the vertical middle line on the other surface of the medium substrate from the bottom surface upwards, the microstrip feeder is in size to meet the requirement of 50 omega impedance, and the SMA radio frequency connector is fixed on the microstrip feeder, and the metal layer of the medium substrate is grounded.
Description
Technical Field
The invention relates to an ultra-wideband antenna, in particular to a small planar ultra-wideband antenna.
Background
In recent years, ultra wideband technology has been increasingly studied, and is being extensively studied, mainly because the system has a wide frequency range from 3.1GHz to 10.6GHz, can obtain a very large data transmission rate within a short distance (10 meters), and has own characteristics and advantages compared with the Bluetooth technology and IEEE 802.11/a/b/g (54 Mbps/11 Mbps/22 Mbps) in practical use due to the own low power consumption and high capacity characteristics.
Many antennas suitable for this band have been designed, but most of them are three-dimensional antennas, which are difficult to design and manufacture, and occupy a large space in practical use, making it difficult to realize an integrated design with a small system.
Disclosure of Invention
In view of the problems existing in the prior art, the invention provides a small planar ultra-wideband antenna, which has the working frequency from 3.1GHz to 10.6GHz and output impedance: 50 Ω, antenna standing wave: less than or equal to 2, average gain: 2.8dBi;
the specific technical scheme is as follows: the utility model provides a small-size plane ultra wide band antenna, includes dielectric substrate, gap, microstrip feeder and SMA radio frequency connector, its characterized in that: the dielectric substrate is an FR4 board with a relative dielectric constant of 4.4, the gap is a round flat groove left by removing a metal layer with a round shape on the upper surface of the dielectric substrate, the diameter of the round flat groove is 20-24mm, the upper end of the circle is 3-5mm away from the upper end surface of the dielectric substrate, an unfilled corner is arranged in the horizontal direction of the circle, the unfilled corner vertex is arranged on the horizontal diameter of the circle, the unfilled corner radius a=11-15 mm, the angle θ=13-17 DEG, a rectangular blind opening is arranged downwards along the vertical diameter at the lower end of the circle, the intersection point of the rectangular blind opening and the circle is 9-13mm away from the bottom end surface of the dielectric substrate, the rectangular blind opening is 4.5-6.5mm long, and the width of the rectangular blind opening is 4.4-6.4mm, the vertical middle line on the other side of the dielectric substrate is upwards provided with a microstrip feeder with a strip-shaped metal layer from the bottom end surface, the length and the width of the microstrip feeder meets the requirement of 50 omega impedance, the SMA radio frequency connector is fixed on the microstrip feeder, and the metal layer of the dielectric substrate is grounded.
The invention has the technical effects of compact structure, small volume and easy microwave integration. The antenna has stable radiation pattern shape in the whole working frequency band and good out-of-roundness, the radiation pattern bandwidth of the antenna is basically matched with the impedance bandwidth, the requirement of an ultra-wideband wireless communication system on the radiation characteristic of the antenna can be completely met, and the antenna can be used as a receiving and transmitting antenna of a small ultra-wideband system and has a certain practical value.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
As shown in figure 1, the miniature planar ultra-wideband antenna comprises a medium substrate 1, a slot 2, a microstrip feeder 3 and an SMA radio frequency connector 4, wherein the medium substrate 1 is made of FR4 plates with the relative dielectric constant of 4.4, the thickness of 1.6mm, the length of 37mm and the width of 30mm, the slot 2 is a flat groove left by removing a metal layer with a certain shape on the upper surface of the medium substrate 1, the certain shape is a circle with the diameter of 22mm, the upper end of the circle is 4mm away from the upper end surface of the medium substrate 1, an unfilled corner is arranged on the horizontal direction of the circle, the unfilled corner vertex is on the horizontal diameter of the circle, the unfilled corner radius a=13 mm, the angle θ=15°, a rectangular blind opening is arranged at the lower end of the circle along the vertical diameter, the intersection point of the rectangular blind opening and the circle is 11mm away from the bottom surface of the medium substrate (1), the rectangular blind opening is 5.5mm long and 5.4mm wide, a strip metal piece, namely the feeder 3 is arranged on the vertical middle line on the other surface of the medium substrate 1, the length and the wide dimension of the feeder 3 meets the requirement of 50 Ω impedance, and the radio frequency connector 4 is fixed on the microstrip antenna 1, and the microstrip radio frequency connector is grounded on the microstrip layer.
The utility model provides a small-size plane ultra wide band antenna realizes ultra wide band operating characteristic through gradual change structure and fluting on the face of ground connection, can also realize the shrink of size. The working characteristics of the antenna are fully studied through numerical simulation and experimental measurement. The results show that: the antenna has an operating bandwidth exceeding 4:1, and has good stable radiation characteristics in an operating frequency band, and has good use value.
Claims (1)
1. The utility model provides a small-size plane ultra wide band antenna, includes dielectric substrate (1), gap (2), microstrip feeder (3) and SMA radio frequency connector (4), its characterized in that: the dielectric substrate (1) is an FR4 board with a relative dielectric constant of 4.4, the gap (2) is a round flat groove left by removing a metal layer with a round shape on the upper surface of the dielectric substrate (1), the diameter of the round flat groove is 20-24mm, the upper end of the circle is 3-5mm away from the upper end surface of the dielectric substrate (1), a unfilled corner is arranged in the horizontal direction of the circle, the vertex of the unfilled corner is on the horizontal diameter of the circle, the unfilled corner has a=11-15 mm, the angle θ=13-17 DEG, a rectangular blind opening is arranged at the lower end of the circle downwards along the vertical diameter, the intersection point of the rectangular blind opening and the circle is 9-13mm away from the bottom end surface of the dielectric substrate (1), the length of the rectangular blind opening is 4.5-6.5mm, the width of the rectangular blind opening is 4.4-6.4mm, the vertical middle line on the other side of the dielectric substrate is provided with a microstrip feeder line (3) with a strip metal layer upwards from the bottom end, the microstrip feeder line (3) meets the requirements of 50 omega impedance, the SMA radio frequency connector (4) is fixed on the feeder line, and the metal layer of the dielectric substrate (1) is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487565.0A CN107196056B (en) | 2017-06-23 | 2017-06-23 | Small planar ultra-wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487565.0A CN107196056B (en) | 2017-06-23 | 2017-06-23 | Small planar ultra-wideband antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107196056A CN107196056A (en) | 2017-09-22 |
| CN107196056B true CN107196056B (en) | 2023-05-23 |
Family
ID=59878835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710487565.0A Active CN107196056B (en) | 2017-06-23 | 2017-06-23 | Small planar ultra-wideband antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107196056B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112038774A (en) * | 2020-08-26 | 2020-12-04 | 电子科技大学 | Novel slotted circular patch antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061442B1 (en) * | 2005-02-05 | 2006-06-13 | Industrial Technology Research Institute | Ultra-wideband antenna |
| CN101814652A (en) * | 2010-04-07 | 2010-08-25 | 重庆大学 | Ultra wide band cup-shaped monopole antenna |
| CN102110892A (en) * | 2010-12-29 | 2011-06-29 | 上海大学 | Low-standing-wave ratio and ultra-wide band planar slot antenna |
-
2017
- 2017-06-23 CN CN201710487565.0A patent/CN107196056B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061442B1 (en) * | 2005-02-05 | 2006-06-13 | Industrial Technology Research Institute | Ultra-wideband antenna |
| CN101814652A (en) * | 2010-04-07 | 2010-08-25 | 重庆大学 | Ultra wide band cup-shaped monopole antenna |
| CN102110892A (en) * | 2010-12-29 | 2011-06-29 | 上海大学 | Low-standing-wave ratio and ultra-wide band planar slot antenna |
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| Publication number | Publication date |
|---|---|
| CN107196056A (en) | 2017-09-22 |
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