CN110635224A - Broadband Antenna Based on Fire Sprinkler - Google Patents

Abstract

The invention discloses a broadband antenna based on a fire sprinkler head. This solution enables the fire sprinkler head to be used as a broadband antenna when it is not spraying water. It includes a fire sprinkler head (1), a straight pipe joint (2), a water pipe (3), a coupler (4), and a metal disc (5). A fire sprinkler head (1), a straight-through pipe joint (2), a water pipe (3), and a coupler (4) constitute an arm of the antenna. The metal disc (5) forms the other arm of the antenna. The two arms form an asymmetric dipole antenna. The signal is fed between the coupler (4) and the metal disc (5) via a coaxial cable feed. The invention does not affect the normal operation of the fire sprinkler head; meanwhile, it can also be used as a broadband antenna. The frequency range of the 10dB bandwidth of the antenna is 7.3GHz-25.5GHz, and its bandwidth can reach 18.2GHz, which can be used in wireless communication systems.

Description

Broadband Antenna Based on Fire Sprinkler

technical field

The invention belongs to the technical field of electronic devices, in particular to components used in radio equipment for transmitting or receiving electromagnetic waves, which can be used for radio frequency front ends of wireless communication systems.

Background technique

After decades of development, wireless communication technology has become increasingly popular around the world and has become one of the indispensable technologies in people's life and production. With the addition and rapid development of Internet technology, the information capacity of wireless communication has increased exponentially. The wireless spectrum is moving towards higher frequency bands, which puts forward broadband requirements for radio frequency microwave devices in communication systems. As an essential device in a wireless communication system, the antenna plays the role of transmitting or receiving electromagnetic waves.

The fire sprinkler head is used in the fire sprinkler system. When a fire breaks out, the water is sprayed out through the sprinkler splash plate to extinguish the fire. We propose a broadband antenna based on the fire sprinkler head. This solution enables the fire sprinkler head to be used as a broadband antenna when it is not spraying water.

Contents of the invention

The invention proposes a broadband antenna based on a fire sprinkler head. When the fire sprinkler head is not spraying water, it can be used as a broadband antenna.

The whole antenna includes: a fire sprinkler head 1, a straight-through pipe joint 2, a water pipe 3, a coupler 4, and a metal disc 5. To achieve the above purpose, the present invention constitutes an asymmetric dipole antenna by introducing a circular metal disk 5 as the other arm of the antenna. It is characterized by:

When there is no fire, the fire sprinkler head 1, the straight-through pipe joint 2, the water pipe 3, the coupler 4, and the metal disc 5 form a pair of asymmetric broadband dipole antenna. The fire sprinkler head 1, the straight-through pipe joint 2 and the water pipe 3 constitute an arm of the antenna. A metal disc 5 constitutes the other arm of the antenna. The signal is loaded between the coupler 4 and the metal disk 5 through the coaxial cable feed.

The present invention has the following technical advantages:

1. The antenna does not affect the normal work of the fire sprinkler head, and at the same time, it can also be used as a broadband antenna.

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

3. The impedance of the antenna is very flat within its working range, and it is easy to achieve impedance matching.

Description of drawings

Fig. 1 is a three-dimensional structural diagram of the present invention;

Fig. 2 is the front view of Fig. 1;

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

Fig. 4 is a response diagram of the _S11 characteristic curve of the embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the implementation of the present invention is described in detail:

Embodiment 1: Design a broadband antenna with a maximum size of 60mm*60mm*120mm.

Referring to Fig. 1, Fig. 2 and Fig. 3, the present invention includes a fire sprinkler head 1, a straight-through pipe joint 2, a water pipe 3, a coupler 4, and a metal disc 5. in:

The fire sprinkler head 1 is made of metal iron or copper, and its maximum size is 30mm*30mm*53mm. The inner diameter of the joint is 16mm and the outer diameter is 20mm.

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 35mm.

The water pipe 3 is made of metal iron or copper, its inner diameter is 16mm, and its outer diameter is 20mm.

The coupler 4 is made of metal iron or copper, its inner diameter is 20mm, and its outer diameter is 24mm.

The metal disc 5 is made of metal iron or copper, its inner diameter is 24mm, its outer diameter is 60mm, and its thickness is 0.5mm.

In this embodiment, the signal is fed between the coupler 4 and the metal disk 5 through a coaxial cable to obtain a broadband antenna.

Effect of the present invention can be further illustrated by the following simulation results:

Simulation: The transmission characteristics of the broadband antenna in the embodiment are simulated, and the results are shown in FIG. 4 .

It can be seen from FIG. 4 that the frequency range of the 10 dB bandwidth of the broadband antenna in this embodiment is 7.3 GHz-25.5 GHz, and its bandwidth can reach 18.2 GHz.

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.

Claims (3)

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.

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