CN201156585Y

CN201156585Y - Short circuit type monopolar antenna

Info

Publication number: CN201156585Y
Application number: CNU2008200008126U
Authority: CN
Inventors: 黄丽如
Original assignee: SMART APPROACH TECHNOLOGY Co Ltd
Current assignee: SMART APPROACH TECHNOLOGY Co Ltd; Smart Approach Co Ltd
Priority date: 2008-01-24
Filing date: 2008-01-24
Publication date: 2008-11-26
Anticipated expiration: 2018-01-24

Abstract

The utility model discloses a short circuit type monopole antenna; a single is fed into a radiation component by a signal feed-in part; wherein, the signal is wirelessly transmitted by the radiation component for one aspect, for the other aspect, the signal is transmitted to a short-circuiting connection pin by the radiation component, then is transferred to a grounding component by the short connection pin; the short-circuiting connection pin is used to replace a sustainer to isolate the radiation component and the grounding component to manufacture an integrally shaped short circuit type monopole antenna and achieve the effect of a Broad Band antenna; compared with the known reversed F-type antenna, the short circuit type monopole antenna has a larger vertical polarization component.

Description

The short circuit type unipole antenna

Technical field

The utility model relates to a kind of unipole antenna, particularly relates to a kind of unipole antenna with short circuit pin.

Background technology

Ultra broadband (Ultra-wide-band) is the emerging technology of radio communication, and its main application is about ten meters or the above short distance high-speed data communication of a hectometer, even the remote low-speed communication about a kilometer.The radio communication two big main forces are bluetooth (Bluetooth) and IEEE 802.11/a/b/g (54Mbps/11Mbps/22Mbps) at present, but in fact its transmission speed can decrease because of barrier, and radio ultra wide band system is to use pulse rather than transmit data with carrier wave, therefore can penetrate barrier.Because be to transmit signal with pulse, so its frequency range is very big, antijamming capability is strong, and can reduce the characteristic that transmit signal power reaches low-power, low power consumption.

Circular cone one pole (conical monopole) antenna is a kind of ultra-wideband antenna that often is used in broadband wireless communications.With reference to Figure 1A and Figure 1B, be common circular cone monopole antenna structure and its change type structure.Circular cone monopole antenna structure in Figure 1A, it includes conical radiation assembly 1, conducting plate 2 and holding wire 3.Conical radiation assembly 1 is a conical structure, in order to receive and to send the resonance frequency (wireless signal of 3GHz ~ 8GHz).The FD feed of holding wire 3 is connected in conical radiation assembly 1, feeds out to conical radiation assembly 1 in order to the delivered current signal, with the current signal that receives 1 feed-in of conical radiation assembly.Conducting plate 2 is connected with the ground signalling of holding wire 3, in order to be used as the grounding assembly of antenna.The circular cone unipole antenna is to utilize conical radiation assembly 1 that the resonance of institute transmitting/receiving wireless signal is current signal, by holding wire 3 current signal is passed, or the current signal of received signal line 3 feed-ins, and current signal resonance is spread out of for wireless signal.Circular cone monopole antenna structure in Figure 1B, be to change the conical radiation assembly 1 among Figure 1A into triangle metal body 4, purpose is that the radiation assembly volume is greatly reduced, but conducting plate 2 does not change, and therefore miniaturization there is no much help to circular cone unipole antenna volume.Existing electronic installation is towards portable, miniaturization, but known ultra-wideband antenna is not suitable for the electronic installation of the miniaturization of present main flow because need the large-area ground of leading dull and stereotyped in order to conductive earthing.

Summary of the invention

The purpose of this utility model is to provide a kind of short circuit type unipole antenna, utilizes the short circuit pin to replace with the supporter broad-band antenna of radiation assembly and grounding assembly that insulate, and reaches the effect of broad-band antenna.

To achieve these goals, the invention provides a kind of short circuit type unipole antenna, include radiation assembly, grounding assembly, short circuit pin and signal feed-in part.Radiation assembly has first rectangular metal and radiant body, and radiant body is vertically connected at first rectangular metal.Radiation assembly is in order to the wireless receiving and dispatching signal.Signal feed-in part is connected on the radiant body, in order to feed-in or feed out signal.Grounding assembly is relative at interval with radiation assembly, and grounding assembly has second rectangular metal and the 3rd rectangular metal, second rectangular metal is corresponding with the first rectangular metal position, and the 3rd rectangular metal is vertically connected at second rectangular metal, one side and extends towards the direction away from radiation assembly.The short circuit pin is between radiation assembly and grounding assembly, and two ends connect radiation assembly and grounding assembly respectively, in order to signal is passed to grounding assembly by radiation assembly via the short circuit pin.

Short circuit type unipole antenna of the present utility model is fed into radiation assembly by signal feed-in part with signal, and utilizes radiation assembly to come the wireless transmission signal.Signal can be passed to the short circuit pin via radiation assembly simultaneously, is passed to grounding assembly at last.Short circuit type unipole antenna of the present utility model utilizes the design of short circuit pin, replaces in the past broad-band antenna with supporter insulate radiation assembly and grounding assembly.Utilize the design of short circuit pin, can produce integrated unipole antenna, save formality and cost on making, and can reach the effect of broad-band antenna equally.Short circuit type unipole antenna of the present utility model has bigger perpendicular polarization component than known inverted F shaped antenna.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Figure 1A is the schematic diagram of known circular cone monopole antenna structure;

Figure 1B is the schematic diagram of known circular cone unipole antenna change type structure;

Fig. 2 is the utility model short circuit type unipole antenna first embodiment schematic diagram;

Fig. 3 is the short circuit type unipole antenna second embodiment schematic diagram of the present utility model;

Fig. 4 is short circuit type unipole antenna the 3rd an embodiment schematic diagram of the present utility model;

Fig. 5 is the measurement pattern of short circuit type unipole antenna standing wave ratio of the present utility model;

Fig. 6 is the measurement pattern of inverted F shaped antenna standing wave ratio;

Fig. 7 is the average gain figure of short circuit type unipole antenna of the present utility model when horizontal polarization and perpendicular polarization; And

Fig. 8 is the average gain figure of inverted F shaped antenna when horizontal polarization and perpendicular polarization.

Wherein, Reference numeral:

1 conical radiation assembly

2 conducting plates

3 holding wires

4 triangle metal bodies

21 radiation assemblies

22 grounding assemblies

23 signal feed-in part

24 short circuit pins

25 first rectangular metal

26 radiant bodies

27 second rectangular metal

28 the 3rd rectangular metal

29 the 4th rectangular metal

30 the 5th rectangular metal

100 short circuit type unipole antennas

Execution mode

Please refer to Fig. 2, be the short circuit type unipole antenna first embodiment schematic diagram of the present utility model.Short circuit type unipole antenna 100 includes radiation assembly 21, grounding assembly 22, signal feed-in part 23 and short circuit pin 24.

Radiation assembly 21 is in order to the wireless receiving and dispatching signal.Radiation assembly 21 has first rectangular metal 25 relative at interval with grounding assembly 22 and is vertically connected at first rectangular metal, 25 1 sides and forms towards the radiant body 26 that grounding assembly 22 extends.The shape of radiant body 26 is geometries such as triangle, semicircle, semiellipse or convex.

Grounding assembly 22 is relative at interval with radiation assembly 21.Grounding assembly 22 has second rectangular metal 27 relative at interval with radiation assembly 21 and is vertically connected at second rectangular metal, 27 1 sides and forms towards the 3rd rectangular metal 28 of extending away from the direction of radiation assembly 21.And second rectangular metal 27 is corresponding with first rectangular metal, 25 positions.

Signal feed-in part 23 is connected on the radiant body 26, in order to feed-in or feed out signal.Signal feed-in part 23 is by the holding wire FD feed, and holding wire includes signal core line, the insulating barrier that coats signal core line and the ground plane of coated insulation layer, and wherein signal core line connects signal feed-in part 23, and ground plane connects grounding assembly 22.

Short circuit pin 24 is between radiation assembly 21 and grounding assembly 22, and two ends connect radiation assembly 21 and grounding assembly 22 respectively, in order to signal is passed to grounding assembly 22 by radiation assembly 21 via short circuit pin 24.Wherein radiant body 26 is connected in first rectangular metal, 25 1 sides, and short circuit pin 24 1 ends are vertically connected at the centre position of first rectangular metal, 25 opposite sides, and the other end vertically extends to be connected in second rectangular metal 27 towards grounding assembly 22.The path of signal feed-in part 23 between short circuit pin 24 to second rectangular metal 27 is about the quarter-wave of signal, can certainly be between 1/3rd wavelength to the five/wavelength between signal.For the signal of feed-in in the energy maximum of signal feed-in place, and when the energy of the signal of feed-in is passed to short circuit pin 24 with grounding assembly 22 junctions via short circuit pin 24, energy is zero, therefore for the signal of this feed-in, the intersection of short circuit pin 24 and grounding assembly, just as open circuit (identical) with the circuit of unipole antenna, therefore short circuit type unipole antenna 100 utilizes the design of short circuit pin 24 can replace in the past broad-band antenna with supporter insulate radiation assembly and grounding assembly, makes unipole antenna 100 have the effect of broad-band antenna equally.And another effect of short circuit pin 24 is static directly to be directed at grounding assembly 22, and has the function of filter.

Short circuit type unipole antenna of the present utility model can be used for the global intercommunication microwave access that operation frequency range is 2.3 ~ 2.7GHz and 3.3 ~ 3.8GHz (WorldwideInteroperability for Microwave Access by length and the shape of adjusting radiation assembly, WiMax), operation frequency range is ultra broadband (the Ultra Wideband of 3.168GHz ~ 7.920GHz, UWB) or operation frequency range be 2.4 ~ 2.5GHz and 5.15 ~ 5.875GHz WLAN (Wireless Local Area Network, WLAN).

Please refer to Fig. 3, be the short circuit type unipole antenna second embodiment schematic diagram of the present utility model.Second embodiment of the present utility model and first example structure are roughly the same, and its difference is that the position of short circuit pin 24 is an end of penetrating the assembly opposite side near this width of cloth.

Please refer to Fig. 4, be short circuit type unipole antenna the 3rd embodiment schematic diagram of the present utility model.The 3rd embodiment of the present utility model is the distortion of inverted F shaped antenna.The 3rd embodiment of the present utility model and second example structure are roughly the same, and its difference is that radiant body 26 includes the 4th rectangular metal 29 and the 5th rectangular metal 30.The 4th rectangular metal 29 1 ends are vertically connected at first rectangular metal, 25 1 sides, and the other end extends towards grounding assembly.The 5th rectangular metal 30 1 ends are connected with the 4th rectangular metal 29, and parallel first rectangular metal 25 of the other end is extended.The 4th rectangular metal 29 and the 5th rectangular metal 30 are connected to form the radiant body 26 of a L shaped metal.

Please refer to Fig. 5, be the measurement pattern of short circuit type unipole antenna standing wave ratio of the present utility model.Please refer to Fig. 6, be the measurement pattern of inverted F shaped antenna standing wave ratio.Demonstrate among Fig. 5 and be applied to ultra broadband at short circuit type unipole antenna of the present utility model (Ultra Wideband, UWB) antenna is the SWR measurement value of 3.168GHz ~ 7.920GHz at operation frequency range.Demonstrating inverted F shaped antenna of the present utility model among Fig. 6 is the SWR measurement value of 3.168GHz ~ 7.920GHz at operation frequency range.Can be by finding out among Fig. 5 and Fig. 6, when operation frequency range 3.168GHz ~ 7.920GHz, short circuit type unipole antenna of the present utility model has the standing-wave ratio lower than inverted F shaped antenna.

Please refer to Fig. 7, be the average gain figure of short circuit type unipole antenna of the present utility model when horizontal polarization and the perpendicular polarization.Fig. 8 is the average gain figure of inverted F shaped antenna when horizontal polarization and perpendicular polarization.Can be by finding out among Fig. 7 and Fig. 8, when operation frequency range 3.168GHz ~ 7.920GHz, short circuit type unipole antenna of the present utility model has than inverted F shaped antenna bigger perpendicular polarization component is arranged.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims

1, a kind of short circuit type unipole antenna is characterized in that, includes:

One radiation assembly in order to wireless receiving and dispatching one signal has one first rectangular metal and a radiant body, and this radiant body is vertically connected at this first rectangular metal;

One feed-in or feed out the signal feed-in part of this signal is connected on this radiant body;

One grounding assembly, this grounding assembly is relative at interval with this radiation assembly, have one second rectangular metal and one the 3rd rectangular metal, this second rectangular metal is corresponding with this first rectangular metal position, and the 3rd rectangular metal is vertically connected at this second rectangular metal, one side and extends towards the direction away from this radiation assembly; And

One in order to be passed to the short circuit pin of this grounding assembly by this radiation assembly via this short circuit pin with this signal, and between this radiation assembly and this grounding assembly, two ends connect this radiation assembly and this grounding assembly respectively.

2, short circuit type unipole antenna according to claim 1, it is characterized in that, also include a holding wire, the ground plane that this holding wire includes a signal core line, coats an insulating barrier of this signal core line and coat this insulating barrier, wherein this signal core line connects this signal feed-in part, and this ground plane connects this grounding assembly.

3, short circuit type unipole antenna according to claim 1 is characterized in that, this radiant body be shaped as triangle, semicircle, half elliptic or L shaped.

4, short circuit type unipole antenna according to claim 1, it is characterized in that, this radiant body includes one the 4th rectangular metal and one the 5th rectangular metal, the 4th rectangular metal one end is vertically connected at this first rectangular metal, one side, the other end extends towards grounding assembly, the 5th rectangular metal one end and the 4th rectangular metal, parallel this first rectangular metal of the other end is extended, and the 4th rectangular metal and the 5th rectangular metal are connected to form a L shaped metal.

5, short circuit type unipole antenna according to claim 1 is characterized in that, this short circuit pin one end connects the centre position of this first rectangular metal opposite side, and the other end vertically extends to be connected in this second rectangular metal towards this grounding assembly.

6, short circuit type unipole antenna according to claim 1 is characterized in that, this short circuit pin one end vertically connects an end of this first rectangular metal opposite side, and the other end vertically extends to be connected in this second rectangular metal towards this grounding assembly.

7, short circuit type unipole antenna according to claim 1 is characterized in that, this signal feed-in part through the path of this short circuit pin between this second rectangular metal between 1/3rd wavelength to a five/wavelength of this signal.

8, short circuit type unipole antenna according to claim 1 is characterized in that, this signal is that frequency range is the wireless LAN signal of 2.4GHz to 2.5GHz and 5.15GHz to 5.875GHz.

9, short circuit type unipole antenna according to claim 1 is characterized in that, this signal is that frequency range is that the global-intercommunication of 2.3GHz to 2.7GHz and 3.3GHz to 3.8GHz is the ripple access information.

10, short circuit type unipole antenna according to claim 1 is characterized in that, this signal is that frequency range is the ultra-broadband signal of 3.168GHz to 7.920GHz.