CN2891322Y

CN2891322Y - Antenna

Info

Publication number: CN2891322Y
Application number: CN 200620056334
Authority: CN
Inventors: 杨明忠
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2006-03-14
Filing date: 2006-03-14
Publication date: 2007-04-18
Anticipated expiration: 2016-03-14

Abstract

The utility model relates to an antenna comprising a grounding part, a radiation part and a feeder line, wherein a tilted slot is provided in certain angle between the grounding part and the radiation part. Compared with the prior art, the broad band aerial of the utility model has the tilted slot provided in certain angle, the antenna can cover the frequency range from low-frequency to high-frequency, thereby the antenna working in a wider frequency range is satisfied.

Description

Antenna

[technical field]

The utility model relates to a kind of antenna, refers in particular to a kind of antenna that cracks that has.

[background technology]

Ripe gradually along with the constantly bring forth new ideas development and the technology of wireless telecommunications science and technology, the use of radio communication product has become one of indispensable communication tool of modern, and WLAN (WLAN) also has and replaces the trend that cable LAN falls gradually, therefore radio communication product certainly will become a big emerging main flow, and can be liked by the consumer widely.And the important and necessary assembly that antenna is a radio communication product carries out the transmission and the reception of radio wave signal, so the topmost function of antenna is to change the energy that (normally air dielectric) electromagnetic radiation wave energy and transceiver (as: intercom) are sent or received in the propagation medium.In the transfer process of energy, can have the discontinuous interface between transceiver and antenna and the Antennas And Propagation medium.In wireless telecommunication system, antenna must be done suitable design according to the characteristic of these two interfaces, so that form a continuous energy transmission path that gets between transceiver, antenna and the propagation medium, so the signal that just can smoothly transceiver will be transmitted is radiated in the transmission medium by transmitting antenna, and by reception antenna the energy that radiation transmits signal is sent to receiver end.Different antennas is arranged at present on the market, planar inverted F-shape antenna (be called for short PIFA) is a kind of antenna wherein, the PIFA antenna is identical and name with its side structure and the English alphabet F outward appearance of turning one's coat, the working length of PIFA antenna has only 1/4th operative wavelength, and in its structure, included grounding metal plane, can reduce susceptibility to grounding metal plane in the module, on the other hand, because the PIFA antenna only need utilize metallic conductor to cooperate the suitable feed-in and the position on antenna short circuit reverse graft ground, so its cost of manufacture is low, and can be directly and printed circuit board (PCB) (PCB) weld together, and the metallic conductor of PIFA antenna can use wire or sheet, if a Metal Flake making then can be designed to surface adhesive type (SMD) assembly and be welded on the purpose that reaches conceal antenna on the circuit board.

At present a lot of antennas all offer and crack, and this cracks is in order to increase current path, make antenna can reach in a big way frequency range, so that antenna can cover the frequency range from the low frequency to the high frequency.But it all is linearly type or bending type that big portion cracks, and does not satisfy the requirement that itself reaches.

Therefore, be necessary to design a kind of novel antenna, to overcome above-mentioned defective.

[utility model content]

The utility model purpose is to provide a kind of antenna that certain angle tilts to crack that has.

To achieve these goals, the utility model antenna comprises grounding parts, Department of Radiation and feeder line, and the inclination that offers at an angle between described grounding parts and Department of Radiation is cracked.

Compared with prior art, because the cracking at an angle of the utility model wide frequency antenna, can make antenna can cover frequency range from the low frequency to the high frequency, in the frequency band range of broad, work to satisfy antenna.

[description of drawings]

Fig. 1 is the front view of the utility model antenna;

Fig. 2 is the size indication figure of antenna shown in Figure 1;

Fig. 3 is voltage standing wave ratio (Voltages Standing Wave Ratio, test resolution VSWR) of antenna shown in Figure 1;

Fig. 4 is the front view of the utility model antenna second embodiment;

Fig. 5 is the size indication figure of antenna shown in Figure 4;

Fig. 6 is the test resolution of the voltage standing wave ratio of antenna shown in Figure 4;

Fig. 7 is the front view of the utility model antenna the 3rd embodiment;

Fig. 8 is the front view of the utility model antenna the 4th embodiment.

[embodiment]

Below in conjunction with accompanying drawing this practical antenna is described further.

See also shown in Figure 1, the utility model antenna 10 is used for radio communication product and is used for receiving or transmitting, and make by white foreign copper integrated punching, comprise grounding parts 11, Department of Radiation 12 and feeder line 13, offer one at

grounding parts

11 and 12 of Departments of Radiation and crack 14.

The transverse width of the utility model antenna 10 is bigger than vertical width, and the transverse width of grounding parts 11 is bigger than vertical width.Described grounding parts 11 roughly is " recessed " type, the end extension of this grounding parts 11 is provided with a junction 111, be connected with Department of Radiation 12 by this connecting portion 111, being Department of Radiation 12 is extended to form by the end of described grounding parts 11, described Department of Radiation 12 is positioned at " recessed " type of described grounding parts 11, and offers at Department of Radiation 12 and 11 of grounding parts and to crack 14.

Described cracking 14 comprises and cracks 141, one level of vertically cracking (this inclination angle is 6 degree in the present embodiment) are cracked 143 in 142, one inclinations that are not more than 15 degree inclination angles and bending type cracks 144, wherein bending type crack 144 with the upper surface of described grounding parts 11 and Department of Radiation 12 to perforation, and tilt to crack 143 described level crack 142 and bending type crack between 144.

Described feeder line 13 is a coaxial cable, comprises inner core lead 131 and wire sheathing 132, and wherein the welding of inner core lead 131 load points is located on the described radiant body 12, and wire sheathing 122 then is welded on the grounding parts 11.

The size of the utility model antenna 10 please refer to shown in Figure 2, and numerical value unit is millimeter (mm) among the figure.

The utility model antenna 10 is used for receiving or being transmitted in the signal of 1.620-6.0GHz bandwidth range, by the voltage standing wave ratio that Figure 3 shows that the utility model wide frequency antenna (Voltages Standing Wave Ratio, VSWR) test resolution, as Fig. 3 show the utility model wide frequency antenna 10 can be in the 1.620-6.0GHz bandwidth range operate as normal.

Fig. 4 is the schematic diagram of the utility model antenna 20 second embodiment, compare with the foregoing description, present embodiment has following difference: the utility model antenna 20 also is made up of grounding parts 21, Department of Radiation 22 and feeder line 23, wherein grounding parts 21 is square, extend to form and Department of Radiation 22 is ends by grounding parts 21, and be provided with a rake 221 in the end of Department of Radiation 22.Also offered one at grounding

parts

21 and 22 of Departments of Radiation and cracked 24, this cracks and 24 bending type same as the previously described embodiments is not set cracks, but this cracks and 24 comprises that also 241, one level of vertically cracking, 242, one inclinations that are not more than 15 degree inclination angles of cracking crack 243 (this inclination angle is 6 degree in the present embodiment), and it is 243 adjacent with the rake 221 of Department of Radiation 22 that this inclination is cracked.The structure and the function of feeder line 23 are same as the previously described embodiments, below just do not repeat to discuss.

Shown in Figure 5 is the dimensional drawing of this practical antenna 20, and numerical value unit is millimeter (mm) among the figure.

The utility model antenna 20 is used for receiving or being transmitted in the signal of 1.365-6.0GHz bandwidth range, by the voltage standing wave ratio that Figure 6 shows that the utility model wide frequency antenna (Voltages Standing Wave Ratio, VSWR) test resolution, as Fig. 6 show the utility model wide frequency antenna 20 can be in the 1.365-6.0GHz bandwidth range operate as normal.

Figure 7 shows that the schematic diagram of the utility model antenna 30 the 3rd embodiment, by as can be seen shown in Figure 7, the antenna 30 and second embodiment are basic identical, and except slightly different in Department of Radiation 32 ends, the end of Department of Radiation 32 is "  " shape.

Because what difference antenna 30 overall structures and second embodiment do not have substantially, and the feeder line position also is identical with second embodiment, so the performance of antenna 30 and bandwidth range are also also basic identical with second embodiment, so followingly also do not discuss in detail.

Figure 8 shows that the schematic diagram of the utility model antenna 40 the 4th embodiment, by as can be seen shown in Figure 8, the antenna 40 and second embodiment are basic identical, except slightly different in Department of Radiation 42 ends, the end vertical extent of Department of Radiation 32 also directly cracks with inclination and links to each other, other structure of present embodiment antenna 40 and the performance of antenna 40 and bandwidth range are identical with above-mentioned second and third embodiment, below also do not discuss in detail.

The utility model antenna cracks owing to being provided with inclinations that are not more than 15 degree inclination angles, can make the utility model antenna in the frequency range that can cover from the low frequency to the high frequency, works in the frequency band range of broad to satisfy antenna.

Claims

1. an antenna comprises grounding parts, Department of Radiation and feeder line, it is characterized in that: the inclination that offers at an angle between described grounding parts and Department of Radiation is cracked.

2. antenna as claimed in claim 1 is characterized in that: the angle that described inclination is cracked is not more than 15 degree.

3. antenna as claimed in claim 1 is characterized in that: described Department of Radiation is extended to form by the end of described grounding parts.

4. antenna as claimed in claim 1 is characterized in that: the end of described Department of Radiation is provided with a rake.

5. antenna as claimed in claim 1 is characterized in that: the end of described Department of Radiation is "  " shape.

6. antenna as claimed in claim 1 is characterized in that: the transverse width of described grounding parts is bigger than vertical width.

7. antenna as claimed in claim 1 is characterized in that: described ground strip is square.

8. antenna as claimed in claim 1 is characterized in that: the end of described ground strip is provided with the connecting portion that is connected with Department of Radiation.

9. antenna as claimed in claim 1 is characterized in that: described feeder line is a coaxial cable, comprises the inner core lead and the wire sheathing that are connected with Department of Radiation and grounding parts respectively.

10. antenna as claimed in claim 1 is characterized in that: described antenna is one-body molded by white foreign copper.