CN101083354B

CN101083354B - Printed antenna

Info

Publication number: CN101083354B
Application number: CN2006100609458A
Authority: CN
Inventors: 施延宜
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2006-06-02
Filing date: 2006-06-02
Publication date: 2012-03-14
Anticipated expiration: 2026-06-02
Also published as: CN101083354A

Abstract

The invention is a printed antenna, arranged on a substrate, and comprising: main body, signal transmission line and at least a first earthing part, where the main body is used to transmit-receive electromagnetic wave signal, and comprises sunk part and a pair of orifices, where the sunk part is arranged in the middle of the main body and the orifices are formed on the edges of the main body; the signal transmission line is connected with the main body to feed electromagnetic wave signal into the main body; the first earthing part is arranged on one side of the signal transmission line. On the premise of not influencing performance, it can effectively reduce the occupied area.

Description

Printing type aerial

Technical field

The present invention relates to a kind of antenna, relate in particular to a kind of antenna that is applied on the Wireless Telecom Equipment.

Background technology

Wireless domain has different standards to the different market demands and application model formulation; As be applied to wireless personal network (Personal Area Network; PAN) IEEE802.15 standard, WLAN (Wirless Area Network; WLAN) IEEE802.11 standard, and IEEE 802.16 standards of wireless MAN.

The IEEE802.16 standard can be divided into fixed broadband wireless and insert standard and mobile broadband wireless access standard.After mobile broadband wireless access standard was successfully formulated, many leading communication equipment companies had set up the inserting of microwave whole world interoperability authentication WIMAX of alliance (Worldwide Interoperability for Microwave Access) jointly.Broadband wireless access product based on the IEEE802.16 standard is carried out consistency and interoperability authentication be one of action of this alliance.Along with the completion of IEEE802.16 standardization effort, (Orthogonal Frequency Division Multiplexing, OFDM) physical layer adopt the licensed band that works in 2.5GHz and 3.5GHz to 256 OFDMs in the WiMAX decision.

Wireless network card for MINI-PCI, PCMCIA or the USB interface of access point that is applied to WLAN (Access Point) and notebook computer; Or be applied to the Wireless Telecom Equipments such as mobile phone of personal communication; Carry for ease, generally need be designed to smaller size smaller.Antenna is the important component of above-mentioned Wireless Telecom Equipment, is a solution that reduces the Wireless Telecom Equipment volume so reduce antenna volume.Utilize larger area Improvement type double-cone antenna (Biconical Antenna) to adopt because of existing Antenna Design and reach the broadband, but can significantly increase the area of antenna itself.So how to satisfy the passband band limits of WIMAX standard, and effectively reduce under the prerequisite of aerial loss, further improve design architecture, designing the WIMAX antenna with the area of minimum then is a major challenge.

Summary of the invention

In view of this, be necessary to provide a kind of printing type aerial, under the prerequisite that does not influence performance, to have than small size.

A kind of printing type aerial is arranged on the substrate, and it comprises antenna body, signal transmssion line and at least one first grounding parts.Antenna body is used to receive and dispatch electromagnetic wave signal; It comprises depressed part and pair of openings; Depressed part is arranged at the middle part of antenna body and becomes h shape, and h shape depressed part is formed by first groove that interconnects, second groove and the 3rd groove jointly, and pair of openings is formed at the edge of antenna body.Signal transmssion line and antenna body electrically connect, and are used for to antenna body feed-in electromagnetic wave signal.First grounding parts that is used for ground connection is arranged at a side of signal transmssion line.

Above-mentioned printing type aerial has the annular design structure that is formed with opening on depressed part and the two edges through the middle part, with under the prerequisite that does not influence the printing type aerial radiation efficiency, reaches the length that shortens antenna body, and then dwindles the area of printing type aerial.

Description of drawings

Fig. 1 is the sketch map of the printing type aerial in the embodiment of the present invention.

Fig. 2 is that the ∏-∏ of the printing type aerial among Fig. 1 is to schematic cross-section.

Fig. 3 is the return loss resolution chart of printing type aerial in electromagnetical analogies gained embodiment of the present invention.

Fig. 4 to Fig. 5 is the radiation pattern figure of printing type aerial in electromagnetical analogies gained embodiment of the present invention.

Fig. 6 is the radiation efficiency resolution chart of printing type aerial in electromagnetical analogies gained embodiment of the present invention.

Embodiment

See also Fig. 1, be depicted as the structural representation of printing type aerial in the embodiment of the present invention.

Printing type aerial is arranged on the substrate 20, and it comprises antenna body 10, signal transmssion line 14, at least one first grounding parts 16 and second grounding parts 18 (consulting shown in Figure 2).

Antenna body 10, signal transmssion line 14 and first grounding parts 16 all are arranged at the first surface of substrate 20.Signal transmssion line 14 is electrically connected to the roughly middle of antenna body 10, is used for to antenna body 10 feed-in electromagnetic wave signals.At least one first grounding parts 16 is arranged at a side of signal transmssion line 14.In Fig. 1 of present embodiment, two first grounding parts 16 are symmetricly set in the both sides of signal transmssion line 14.Antenna body 10 is used to receive and dispatch electromagnetic wave signal, and antenna body 10 is for ring-type and have depressed part 100 and pair of openings 120.In this execution mode, antenna body 10 roughly is square.In other execution mode of the present invention, antenna body 10 also can be circle, polygon or other shape.

Depressed part 100 is arranged at the middle part of antenna body 10, and depressed part 100 comprises first groove 102, second groove 104 and the 3rd groove 106, and the three is interconnected and forms the groove that roughly is h font or J font.Wherein, an end of second groove 104 links to each other with the roughly pars intermedia of first groove 102, and the other end links to each other with an end of the 3rd groove 106.In this execution mode; The bearing of trend of the bearing of trend of first groove 102 and the 3rd groove 106 is parallel to each other haply; The bearing of trend of second groove 104 and first groove 102 are vertical each other haply with the bearing of trend of the 3rd groove 106, and the bearing of trend of second groove 104 and signal transmssion line 14 are parallel to each other haply.In other execution mode of the present invention; First groove 102 and the 3rd groove 106 also can not be parallel to each other; Second groove 104 also can not be parallel to each other with signal transmssion line 14, and second groove 104 is not with first groove 102, the 3rd groove 106 also can be mutual vertical.

In this execution mode, opening 12 is symmetrically formed in the both sides of the edge of antenna body 10, and the bearing of trend of opening 120 is vertical each other with signal transmssion line 14.In other execution mode of the present invention, opening 120 also can be asymmetric distribution in the marginal position of antenna body 10.

See also Fig. 2, the ∏-∏ that is depicted as the printing type aerial among Fig. 1 is to schematic cross-section.

In this execution mode; Second grounding parts 18 is arranged at substrate 20 and said first surface opposing second surface; And second grounding parts 18 in the laying length of substrate 20 greater than first grounding parts 16 in the laying length of substrate 20, its length difference is L, can strengthen the reflection effect of 18 pairs of antenna bodies 10 of second grounding parts; Thereby improve the work bandwidth of printing type aerial, reduce the harmful effect that noise that the signal transmssion line 14 and first grounding parts 16 produced is produced antenna body 10 simultaneously.

In this execution mode, the length of signal transmssion line 14 is about 20mm, and width is about 0.53mm.The length of antenna body 10 is about 21.7mm, and width is about 17.53mm.The length of first groove 102 is about 13.13mm, and width is about 3.2mm.The length of second groove 104 is about 10.9mm, and width is about 32mm.The length of the 3rd groove 106 is about 8.3mm, and width is about 3.2mm.The length of opening 120 is about 5.1mm, and width is about 2mm.The length of L is about 10mm.Yet the present invention does not limit above size, and in other embodiments, printing type aerial can have other size.

See also Fig. 3, be depicted as the return loss resolution chart of printing type aerial in electromagnetical analogies gained embodiment of the present invention.Can know that by figure when printing type aerial worked in 2.3GHz to the 3.6GHz frequency range of IEEE 802.16 standards, its attenuation amplitude was all less than-10dB.

See also Fig. 4 and Fig. 5, be depicted as the radiation pattern figure of printing type aerial in electromagnetical analogies gained embodiment of the present invention.From figure, can know when printing type aerial works in the center frequency range 3GHz of IEEE 802.16 standards, to have the characteristic of omni-directional radiation.

See also Fig. 6, be depicted as the radiation efficiency resolution chart of printing type aerial in electromagnetical analogies gained embodiment of the present invention.Can know that by figure when printing type aerial worked in 2.3GHz to the 3.6GHz frequency range of IEEE 802.16 standards, its radiation efficiency was all greater than 75%, so said printing type aerial has radiation efficiency preferably.

The printing type aerial of embodiment of the present invention; Be formed with the design that is formed with opening 120 on depressed part 100 and the both sides of the edge through middle part at printing type aerial; Form the annular printing type aerial that closely centers on; Can effectively increase frequency range, and under the prerequisite of the radiation efficiency that does not influence printing type aerial, reach the effect of dwindling the printing type aerial area occupied.

Claims

1. a printing type aerial is arranged on the substrate, it is characterized in that, said printing type aerial comprises:

Antenna body; Be used to receive and dispatch electromagnetic wave signal; Said antenna body has depressed part and pair of openings; Said depressed part is arranged at the middle part of said antenna body and becomes h shape, and said h shape depressed part is formed by first groove that interconnects, second groove and the 3rd groove jointly, and said pair of openings is formed at the edge of said antenna body;

Signal transmssion line electrically connects with said antenna body, is used for to said antenna body feed-in electromagnetic wave signal; And

At least one first grounding parts is arranged at a side of signal transmssion line, is used for ground connection.

2. printing type aerial as claimed in claim 1 is characterized in that said antenna body in the form of a ring.

3. printing type aerial as claimed in claim 1 is characterized in that, the bearing of trend of said opening is vertical each other with said signal transmssion line.

4. printing type aerial as claimed in claim 1 is characterized in that, an end of said second groove links to each other with the middle part of said first groove, and the other end links to each other with an end of said the 3rd groove.

5. printing type aerial as claimed in claim 1 is characterized in that, said antenna body and said signal transmssion line all are arranged at the first surface of said substrate.

6. printing type aerial as claimed in claim 1 is characterized in that said first grounding parts is arranged at the first surface of said substrate.

7. printing type aerial as claimed in claim 6 is characterized in that said printing type aerial more comprises second grounding parts, is arranged at the second surface of said substrate, and said second surface is the opposite face of said first surface.

8. printing type aerial as claimed in claim 7 is characterized in that, said second grounding parts in the laying length of said substrate greater than said first grounding parts in the laying length of said substrate.