阅读说明：本技术 基于消防喷淋头的宽带天线 (Broadband antenna based on fire sprinkler head ) 是由 雷大军 董辉 邱枫 黄健全 姚敏 黄小益 唐政华 于 2018-06-21 设计创作，主要内容包括：本发明公开了一种基于消防喷淋头的宽带天线。该方案可使消防喷淋头在不喷水时,可以作为一种宽带天线使用。其包括消防喷淋头(1)、直通管接头(2)、水管(3)、耦合器(4)、金属圆盘(5)。消防喷淋头(1)、直通管接头(2)、水管(3)、耦合器(4)构成天线的一臂。金属圆盘(5)构成天线的另一臂。两个臂构成不对称偶极天线。信号通过同轴电缆馈电加载在耦合器(4)和金属圆盘(5)之间。本发明具有不影响消防喷淋头的正常工作；同时,可兼做宽带天线使用。该天线的10dB带宽的频率范围为7.3GHz-25.5GHz,其带宽可达18.2GHz,可用于无线通信系统。(The invention discloses a broadband antenna based on a fire-fighting spray header. The scheme can enable the fire sprinkler head to be used as a broadband antenna when not spraying water. The fire-fighting spray head comprises a fire-fighting spray head (1), a straight-through pipe joint (2), a water pipe (3), a coupler (4) and a metal disc (5). The fire-fighting spray header (1), the straight-through pipe joint (2), the water pipe (3) and the coupler (4) form one arm of the antenna. The metal disc (5) constitutes the other arm of the antenna. The two arms form an asymmetric dipole antenna. The signal is loaded between the coupler (4) and the metal disc (5) through the coaxial cable feed. The invention has the advantages that the normal work of the fire-fighting spray header is not influenced; meanwhile, the antenna can be used as a broadband antenna. The frequency range of 10dB bandwidth of the antenna is 7.3GHz-25.5GHz, the bandwidth of the antenna can reach 18.2GHz, and the antenna can be used for a wireless communication system.)

1. The utility model provides a broadband antenna based on fire sprinkler head, includes fire sprinkler head (1), straight coupling (2), water pipe (3), coupler (4), metal disc (5), its characterized in that: the fire-fighting spray header (1), the straight-through pipe joint (2), the water pipe (3) and the coupler (4) form one arm of the antenna, the metal disc (5) forms the other arm of the antenna, and the two arms form the asymmetric dipole antenna.

2. The fire sprinkler head-based broadband antenna of claim 1, wherein the maximum dimension is 60mm by 120 mm; the fire-fighting spray header (1) is made of metal iron or copper, the maximum size is 30mm x 53mm, the inner diameter of the joint is 16mm, and the outer diameter is 20 mm; the straight-through pipe joint (2) is made of metal iron or copper, the inner diameter of the joint is 20mm, the outer diameter is 30mm, and the length is 35 mm; the water pipe (3) is made of metal iron or copper, the inner diameter of the water pipe is 16mm, and the outer diameter of the water pipe is 20 mm; the coupler (4) is made of metal iron or copper, the inner diameter of the coupler is 20mm, and the outer diameter of the coupler is 24 mm; the metal disc (5) is made of metal iron or copper, the inner diameter of the metal disc is 24mm, the outer diameter of the metal disc is 60mm, and the thickness of the metal disc is 0.5 mm.

3. A broadband fire sprinkler head-based antenna according to claim 1, characterized in that the signal is loaded between the coupler (4) and the metal disc (5) through a coaxial cable feed, the antenna does not affect the normal operation of the fire sprinkler head; meanwhile, the antenna can be used as a broadband antenna.

Technical Field

The invention belongs to the technical field of electronic devices, and particularly relates to a part for transmitting or receiving electromagnetic waves in radio equipment, which can be used for a radio frequency front end of a wireless communication system.

Background

The wireless communication technology has been increasingly popularized in the global scope after decades of development, and becomes one of indispensable technologies in life and production of people. The addition and rapid development of internet technology has led to a more exponential increase in the information capacity of wireless communications. The wireless spectrum moves towards higher frequency bands, which puts a demand on the broadband of rf microwave devices in communication systems. The antenna, which is an indispensable device in a wireless communication system, functions to transmit or receive electromagnetic waves.

The fire-fighting spray header is used for a fire-fighting spray system, and when a fire disaster occurs, water is sprayed out through the spray header water splashing disc to extinguish the fire. Based on a fire sprinkler head, the broadband antenna is provided. The scheme can enable the fire sprinkler head to be used as a broadband antenna when not spraying water.

Disclosure of Invention

The invention provides a broadband antenna based on a fire sprinkler head. When the fire sprinkler head does not spray water, the antenna can be used as a broadband antenna.

The whole antenna comprises: the fire-fighting spray header comprises a fire-fighting spray header 1, a straight-through pipe joint 2, a water pipe 3, a coupler 4 and a metal disc 5. To achieve the above object, the present invention constitutes an asymmetric dipole antenna by introducing a circular metal disc 5 as the other arm of the antenna. The method is characterized in that:

when no fire occurs, the fire-fighting spray header 1, the straight-through pipe joint 2, the water pipe 3, the coupler 4 and the metal disc 5 form an asymmetric broadband dipole antenna. The fire sprinkler head 1, the straight pipe joint 2 and the water pipe 3 form one arm of the antenna. The metal disc 5 constitutes the other arm of the antenna. The signal is loaded between the coupler 4 and the metal disc 5 through the coaxial cable feed.

The invention has the following technical advantages:

1. the antenna does not affect the normal work of the fire sprinkler head, and can be used as a broadband antenna.

2. The frequency range of the 10dB bandwidth of the antenna is 7.3GHz-25.5GHz, and the bandwidth of the antenna can reach 18.2 GHz.

3. The impedance of the antenna is flat in the working range, and the impedance matching is easy to realize.

Drawings

FIG. 1 is a three-dimensional block diagram of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 shows an embodiment of S₁₁Response of characteristic curve.

Detailed Description

The following detailed description of the embodiments of the invention refers to the accompanying drawings: