CN209183738U

CN209183738U - A kind of High-gain dual-frequency section list whip antenna

Info

Publication number: CN209183738U
Application number: CN201920221592.8U
Authority: CN
Inventors: 唐黎
Original assignee: HUBEI GUANGXING COMMUNICATION TECHNOLOGY Co Ltd
Current assignee: HUBEI GUANGXING COMMUNICATION TECHNOLOGY Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2019-07-30
Anticipated expiration: 2029-02-22

Abstract

The utility model relates to a kind of High-gain dual-frequency section list whip antennas, belong to communication antenna manufacturing technology field.It is made of radiator, double frequency impedance transformer etc., is wrapped up in outside radiator equipped with load networks；Radiator is made of radiator I, radiator II, radiator III, the one end for the double frequency impedance transformer installed in antenna installing pipe is connected by RF connection with radio frequency connector, and the another both ends of double frequency impedance transformer are separately connected radiator II, radiator III by RF connection；Attaching has horizontal dipole on radiator II.Double frequency impedance transformer works in 150MHz~170MHz frequency range, radiator I, load networks and radiator II constitute narrowband bottom and present Franklin's working condition, for the work of double frequency impedance transformer in 800~870MHz frequency range, radiator III constitutes dipole working condition.It is adapted to above two frequency range wireless device communication, working frequency range high gain, the stable isolation of performance is good, makes and easy to operate.

Description

A kind of High-gain dual-frequency section list whip antenna

Technical field

The utility model relates to a kind of High-gain dual-frequency section list whip antennas, belong to communication antenna manufacturing technology field.

Background technique

Mobile communication has become the major way communicated now, and antenna is the very important building block of mobile communication.It moves The beamwidth of antenna of dynamic communication should meet device bandwidth, reach gain index requirement again, in this way, could provide for consumer excellent The communication service of matter.Traditional broad-band antenna generally uses single frequency band to configure, narrow application range, and gain index is lower than narrowband day Line, transmission efficiency is low, it is difficult to reach broadband and high-gain index request of mobile communication equipment today to antenna.Therefore, it develops A kind of adaptation 150MHz~170MHz and 800MHz~870MHz wireless device ultra short wave communication, working frequency range high gain, work Performance is stablized, and isolation is good, and production and two-band list whip antenna simple to operate are necessary.

Summary of the invention

The purpose of this utility model is that in view of the above shortcomings of the prior art, provide a kind of adaptation 150MHz~ 170MHz and 800MHz~870MHz wireless device ultra short wave communication, working frequency range high gain, stable working performance, isolation It is good, production and two-band list whip antenna simple to operate.

The utility model is to realize above-mentioned purpose by the following technical solutions:

A kind of High-gain dual-frequency section list whip antenna, it is connected by radiator, load networks, double frequency impedance transformer, radio frequency Device, horizontal dipole, antenna installing pipe are constituted, it is characterised in that: and radiator is made of radiator I, radiator II and radiator III, It is wrapped up outside radiator and load networks is installed；Antenna installing pipe is provided with double frequency impedance transformer, and the one of double frequency impedance transformer End is connected by radio-frequency cable with radio frequency connector, and the another both ends of double frequency impedance transformer are separately connected radiation by radio-frequency cable Body II, radiator III；There is horizontal dipole by screw attaching on radiator II；Double frequency impedance transformer by work in 150MHz~ The low-pass filter of 170MHz frequency range and the high-pass filter composition for working in 800MHz~870MHz frequency range.

The low-pass filter of the double frequency impedance transformer is made of capacitor C1, capacitor C2, inductance L1, inductance L2, double The high-pass filter of frequency impedance transformer is made of capacitor C3, capacitor C4, capacitor C5, inductance L3, inductance L4.

The double frequency impedance transformer works in 150MHz~170MHz frequency range, radiator I, load networks and radiation Body II constitutes narrowband bottom and presents Franklin's working condition, and double frequency impedance transformer works in 800~870MHz frequency range, radiator III constitutes dipole working condition.

The load networks are made of inductance coil, when Antenna Operation is in 150MHz~170MHz, nothing on radiator Reverse current improves the band gain.

The horizontal dipole is made of metal tube, simulates big ground, improves 150MHz~170MHz band gain.

The beneficial effect of the utility model compared with prior art is:

The double frequency impedance transformer of the High-gain dual-frequency section list whip antenna uses two sets of different impedance matching networks, makes day Line whip body matches in the input impedance of two frequency ranges of interface with 50 Ω coaxial cables, improves the radiation efficiency of antenna, The isolation between two frequency ranges is enhanced simultaneously.Realize antenna in the working condition conversion of two kinds of working frequency range, high gain, work Work is stablized, and isolation is good, makes and simple to operate, cheap.It solves existing broad-band antenna single frequency band configuration, fits With narrow range, gain index is lower than narrow-band antenna, and transmission efficiency is low, it is difficult to reach mobile communication equipment today to the width of antenna The problem of band, high-gain index request.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of High-gain dual-frequency section list whip antenna；

Fig. 2 is the operation principle schematic diagram of double frequency impedance transformer；

Fig. 3 is the horizontal radiation pattern of 160MHz frequency；

Fig. 4 is the elevation radiation patytern of 160MHz frequency；

Fig. 5 is the horizontal radiation pattern of 800MHz frequency；

Fig. 6 is the elevation radiation patytern of 800MHz frequency.

In figure: 1, radiator I, 2, load networks, 3, radiator II, 4, radiator III, 5, double frequency impedance matching box, 6, penetrate Frequency connector, 7, horizontal dipole, 8, antenna installing pipe；501, low-pass filter, 502, high-pass filter.

Specific embodiment

The embodiment of the High-gain dual-frequency section list whip antenna is described in further detail (referring to figure with reference to the accompanying drawing 1~6):

A kind of High-gain dual-frequency section list whip antenna, it is connected by radiator, load networks 2, double frequency impedance transformer 5, radio frequency It connects device 6, horizontal dipole 7, antenna installing pipe 8 to constitute, radiator is made of radiator I 1, radiator II 3 and radiator III 4, spoke It is wrapped up outside beam and load networks 2 is installed；Antenna installing pipe 8 is provided with double frequency impedance transformer 5, double frequency impedance transformer 5 One end is connected by radio-frequency cable with radio frequency connector 6, and the another both ends of double frequency impedance transformer 5 are separately connected by radio-frequency cable Radiator II 3, radiator III 4；There is horizontal dipole 7 by screw attaching on radiator II 3；Double frequency impedance transformer 5 is by working In 150MHz~170MHz frequency range low-pass filter 501 and work in the high-pass filter 502 of 800MHz~870MHz frequency range Composition.

The low-pass filter 501 of the double frequency impedance transformer 5 is by capacitor C1, capacitor C2, inductance L1, inductance L2 structure At the high-pass filter 502 of double frequency impedance transformer is made of capacitor C3, capacitor C4, capacitor C5, inductance L3, inductance L4.(ginseng See Fig. 2).

The double frequency impedance transformer 5 works in 150MHz~170MHz frequency range, radiator I 1,2 and of load networks Radiator II 3 constitutes narrowband bottom and presents Franklin's working condition, and double frequency impedance transformer 5 works in 800~870MHz frequency range, Radiator III 4 constitutes dipole working condition.

The load networks 2 are made of inductance coil, when Antenna Operation is in 150MHz~170MHz, nothing on radiator Reverse current improves the band gain.

The horizontal dipole 7 is made of metal tube, simulates big ground, improves 150MHz~170MHz band gain (ginseng See Fig. 1~6).

The key technical indexes of the High-gain dual-frequency section list whip antenna is as follows:

A) operating frequency range: 150MHz~170MHz, 800MHz~870MHz.

B) power capacity: 100W.

C) nominal impedance: 50 Ω.

D) voltage standing wave ratio: less than 2.5.

E) gain: in 150MHz~170MHz frequency range, gain 6dBi；

In 800MHz~870MHz frequency range, gain 1.5dBi.

F) directionality: horizontal omnidirectional.

G) polarization mode: vertical polarization.

H) antenna weights: about 5kg.

I) antenna height: about 3.5m.

The working principle of High-gain dual-frequency section list whip antenna is as follows:

The effect of double frequency impedance transformer 5 is to make antenna whip body in the input of two frequency ranges of 6 interface of radio frequency connector Impedance and the radio frequency coaxial-cable of 50 Ω match, and effectively improve the radiation efficiency of antenna, while increasing between two frequency ranges Isolation.The utility model Antenna Operation is in 150MHz~170MHz and 800MHz~870MHz two different frequency range models It encloses, therefore, double frequency impedance transformer 5 uses two sets of different impedance matching networks with also corresponding (referring to Fig. 1).It is double Frequency impedance transformer 5 is made of multiple capacitors and inductance, when working in 150MHz~170MHz, by capacitor C1, capacitor C2, electricity Sense L1 and inductance L2 collectively forms low-pass filter 501, by adjusting the inductance of inductance L1 and inductance L2, enables the antenna to effectively Match with system operating frequency；When working in 800MHz~870MHz, by capacitor C3, capacitor C4, capacitor C5, inductance L3 And inductance L4 collectively forms high-pass filter 502, enables the antenna to effectively work with system by adjusting inductance L3 and inductance L4 Frequency matches.High-pass filter 502 and low-pass filter 501 collectively form double frequency impedance transformer 5, improve the spoke of antenna Penetrate efficiency.The low-pass filter 501 and high-pass filter 502 share a delivery outlet XS2, and pass through radio-frequency cable and radio frequency Connector 6 connects.(referring to fig. 2).

When the utility model Antenna Operation is when 150MHz~170MHz frequency range, double frequency impedance transformer 5 passes through radiator I 1, load networks 2 and radiator II 3 constitute narrowband bottom and present Franklin's state, present Franklin antenna design principle the bottom of by, The utility model antenna is effectively improved in the gain index of the frequency range (referring to Fig. 1,2,3,4).

When the utility model Antenna Operation is when 800MHz~870MHz frequency range, double frequency impedance transformer 5 makes radiator III 4 Dipole antenna state is automatically formed, by dipole antenna design principle, effectively improves the utility model antenna in the frequency range Gain index (referring to Fig. 1,2,5,6).

By computer artificial result, obtaining can gain 6dBi in 150MHz~170MHz band limits；800MHz~ It can gain 1.5dBi in 870MHz frequency range.(referring to Fig. 3~Fig. 6).

The above is the preferred embodiment of the utility model, and the example above illustrates the not reality to the utility model Matter content makes any form of restriction, and person of an ordinary skill in the technical field is after having read this specification according to this reality It is taken off with novel technical spirit to any simple modification or deformation made by the above specific embodiment, and possibly also with above-mentioned The technology contents shown are changed or are modified to the equivalent embodiment of equivalent variations, still fall within technical solutions of the utility model In range, without departing from the spirit and scope of the utility model.

Claims

1. a kind of High-gain dual-frequency section list whip antenna, it is by radiator, load networks (2), double frequency impedance transformer (5), radio frequency Connector (6), horizontal dipole (7), antenna installing pipe (8) are constituted, it is characterised in that: radiator is by radiator I (1), radiator II (3) and radiator III (4) composition, radiator wrap up be equipped with load networks (2) outside；Antenna installing pipe (8) is provided with double frequency One end of impedance transformer (5), double frequency impedance transformer (5) is connected by radio-frequency cable with radio frequency connector (6), double frequency impedance The another both ends of converter (5) are separately connected radiator II (3), radiator III (4) by radio-frequency cable；Lead on radiator II (3) Crossing screw attaching has horizontal dipole (7)；Double frequency impedance transformer (5) is by working in the low-pass filtering of 150MHz~170MHz frequency range Device (501) and high-pass filter (502) composition for working in 800MHz~870MHz frequency range.

2. a kind of High-gain dual-frequency section list whip antenna according to claim 1, it is characterised in that: the double frequency impedance becomes The low-pass filter (501) of parallel operation (5) is made of capacitor C1, capacitor C2, inductance L1, inductance L2, double frequency impedance transformer (5) High-pass filter (502) is made of capacitor C3, capacitor C4, capacitor C5, inductance L3, inductance L4.

3. a kind of High-gain dual-frequency section list whip antenna according to claim 1, it is characterised in that: the double frequency impedance becomes Parallel operation (5) works in 150MHz~170MHz frequency range, and radiator I (1), load networks (2) and radiator II (3) constitute narrowband Franklin's working condition is presented at bottom, and double frequency impedance transformer (5) works in 800~870MHz frequency range, and radiator III (4) is constituted Dipole working condition.

4. a kind of High-gain dual-frequency section list whip antenna according to claim 1, it is characterised in that: the load networks (2) it is made of inductance coil, when Antenna Operation is in 150MHz~170MHz, without reverse current on radiator, improves the frequency range Gain.

5. a kind of High-gain dual-frequency section list whip antenna according to claim 1, it is characterised in that: the horizontal dipole (7) it is made of metal tube, simulates big ground, improve 150MHz~170MHz band gain.