CN201178135Y - Dual-frequency slot antenna with integrated waveguide on substrate - Google Patents
Dual-frequency slot antenna with integrated waveguide on substrate Download PDFInfo
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- CN201178135Y CN201178135Y CNU2008200308915U CN200820030891U CN201178135Y CN 201178135 Y CN201178135 Y CN 201178135Y CN U2008200308915 U CNU2008200308915 U CN U2008200308915U CN 200820030891 U CN200820030891 U CN 200820030891U CN 201178135 Y CN201178135 Y CN 201178135Y
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Abstract
基片集成波导的双频缝隙阵列天线适合于需要工作在间隔较大的两个频段且对天线体积大小有限制的无线通信系统，该天线制作在一块介质基片上，基片集成波导由第一金属化通孔(41)所围部分为第一波导(I)、由第二金属化通孔(42)所围部分为第二波导(II)、由第三金属化通孔(43)所围部分为第三波导(III)三个部分顺序连接构成，第一波导(I)的末端是第四金属化通孔(5)；在第一波导(I)中的上金属表面中心线的两侧分别设有工作在高频段的第一缝隙阵列(6)，第三波导(III)中的上金属表面中心线上设有工作在低频段的第二缝隙阵列(7)，在第二缝隙阵列(7)的两侧交替的设有一个金属化通孔(8)；第三波导(III)的一端通过一段渐变微带线(3)与直微带线(9)相连。
The substrate-integrated waveguide dual-frequency slot array antenna is suitable for wireless communication systems that need to work in two frequency bands with large intervals and has limited antenna volume. The antenna is fabricated on a dielectric substrate, and the substrate-integrated waveguide is composed of the The part surrounded by the metallized through hole (41) is the first waveguide (I), the part surrounded by the second metallized through hole (42) is the second waveguide (II), and the part surrounded by the third metallized through hole (43) The surrounding part is formed by sequential connection of three parts of the third waveguide (III), and the end of the first waveguide (I) is the fourth metallized through hole (5); The two sides are respectively provided with the first slot array (6) working in the high frequency band, and the second slot array (7) working in the low frequency band is provided on the center line of the upper metal surface in the third waveguide (III). A metallized through hole (8) is alternately arranged on both sides of the slot array (7); one end of the third waveguide (III) is connected with a straight microstrip line (9) through a section of tapered microstrip line (3).
Description
Affiliated field
It is antenna integrated that the utility model relates to a kind of substrate that is operated in two-band, this antenna adopts substrate integration wave-guide (Substrate Integrated Waveguide SIW) technology, is particularly suitable for being operated in bigger at interval two frequency ranges and to the conditional wireless communication system of antenna volume size.
Background technology
Characteristics such as conventional metals rectangular waveguide slot array antenna has that main lobe width is narrow, directional diagram can figuration, cross polarization level is low have a wide range of applications in radar and wireless communication system.Yet rectangular waveguide slot array antenna volume is huger, and the processing cost height is not suitable for modern planar circuit integrated.Integrated and the light-weighted requirement of equipment for adaptive system, people have proposed the antenna technology of multiple suitable planographic technology, comprising the antenna of various microstrip antennas and printing form.Though these technology have solved the requirement integrated with circuit preferably, also exist problems such as, cross polarization level height little such as power capacity.The chip integrated waveguide slot antenna has the advantage of the antenna of conventional metals SLOTTED ANTENNA IN A RECTANGULAR WAVEGUIDE and plane typography simultaneously, can be integrated in the same dielectric substrate with modern planar circuit, can utilize ripe PCB technology processing, design cost and low production cost are fit to large-scale production very much.
Along with the development of personal radio communication technology and wireless local area network technology, a lot of wireless communication systems need be in two at interval bigger frequency ranges transmission signals.If adopt two slave antennas in order to realize two-band work, then in order to reduce the spacing of blocking and disturb its installation of needs increasing between them, this can strengthen system's occupation space undoubtedly, and Modern wireless communication specification requirement system occupation space is the smaller the better.Here proposed a kind of dual-band antenna based on the chip integrated waveguide slot antenna technology, this antenna radiation characteristic in two working frequency range is separate basically for this reason.
Summary of the invention
Technical problem: the purpose of this utility model is the double frequency slot array antenna that proposes a kind of substrate integration wave-guide, have at two working frequency range directional diagrams separate, be easy to group battle array and realize a high-gain, advantage such as cross polarization is low, loss is little, volume is little, cost is low, be convenient to produce in batches, be easy to planar circuit is integrated.
Technical scheme: the dual-band antenna of substrate integration wave-guide of the present utility model has at two working frequency range directional diagrams separate, be easy to the group battle array and realize high-gain, advantages such as cross polarization is low, loss is little, volume is little, cost is low, be convenient to produce in batches, be easy to planar circuit is integrated are suitable for being operated in the personal wireless communications system and the wireless network access scheme of double frequency very much.
The double frequency slot array antenna of substrate integration wave-guide of the present utility model is produced on the dielectric substrate, upper surface at dielectric substrate is covered with the first upper surface metal patch, the second upper surface metal patch, lower surface is covered with the first lower surface metal patch, the second lower surface metal patch and surround substrate integration wave-guide through the plated-through hole array of double layer of metal face up and down, it is first waveguide that substrate integration wave-guide is enclosed part by first plated-through hole, being enclosed part by second plated-through hole is second waveguide, being enclosed part by the 3rd plated-through hole is that three parts of the 3rd waveguide are linked in sequence and constitute, and the end of first waveguide is the 4th plated-through hole; The both sides of metal surface center line are respectively equipped with first gap array that is operated in high band in first waveguide, last metal surface center line in the 3rd waveguide is provided with second gap array that is operated in low-frequency range, and what replace in the both sides of second gap array is provided with a plated-through hole; One end of the 3rd waveguide links to each other with straight microstrip line by one section gradual change microstrip line.
The lower surface of first waveguide and the pairing dielectric substrate of the 3rd waveguide be provided with first gap array of upper surface, the 3rd gap array that second gap array is corresponding fully, Fpir Crevices crack array with the realization omnidirectional antenna.
Beneficial effect: the utlity model has following advantage:
1. this antenna can be operated in two frequency ranges, and two frequency ranges can be very big at interval, and their directional diagram is separate simultaneously.
2. this antenna is easy to planar circuit integrated.Because this aerial array utilizes metal throuth hole to realize fully on dielectric substrate, all can utilize the PCB explained hereafter, cost is low, precision is high, good reproducibility, is fit to produce in enormous quantities.
3. this antenna has lower loss, can realize higher gain.
Description of drawings
Fig. 1 is the Facad structure schematic diagram of the double frequency slot array antenna of the utility model substrate integration wave-guide.
Fig. 2 is the structure schematic diagram of the double frequency slot array antenna of the utility model substrate integration wave-guide.Wherein Fig. 2 a is to crack and form the structural representation of omnidirectional antenna in the back side; Fig. 2 b is not crack and form the structural representation of unidirectional antenna in the back side.
Fig. 3 is the structural representation of the utility model embodiment antenna.Wherein Fig. 3 a is the Facad structure schematic diagram, and Fig. 3 b is the structure schematic diagram.
Fig. 4 is the utility model antenna reflection coefficient test result in kind,
Fig. 5 is the utility model antenna E face and H face directional diagram test result when being operated in 2.46GHz,
Fig. 6 is the utility model antenna E face and H face directional diagram test result when being operated in 3.5GHz.
Have among the above figure: the first upper surface metal patch 2, the second upper surface metal patch, 3, the first lower surface metal patches 21, the second lower surface metal patch 31, first plated-through hole 41, the first waveguide I, by second plated-through hole 42, the second waveguide II, the 3rd plated-through hole 43, the 3rd waveguide III, the 4th plated-through hole 5, first gap array 6, second gap array 7, plated-through hole 8, straight microstrip line 9.
Embodiment
Dual-band antenna of the present utility model is an a kind of chip integrated waveguide dual-frequency omnidirectional slot antenna, this antenna is produced on the dielectric substrate, upper surface at dielectric substrate is covered with the first upper surface metal patch 2, the second upper surface metal patch 3, lower surface is covered with the first lower surface metal patch 21, the second lower surface metal patch 31 and surround substrate integration wave-guide through the plated-through hole array of double layer of metal face up and down, it is the first waveguide I that substrate integration wave-guide is enclosed part by first plated-through hole 41, being enclosed part by second plated-through hole 42 is the second waveguide II, being enclosed part by the 3rd plated-through hole 43 is that three parts of the 3rd waveguide III are linked in sequence and constitute, and the end of the first waveguide I is the 4th plated-through hole 5; The both sides of metal surface center line are respectively equipped with first gap array 6 that is operated in high band in the first waveguide I, last metal surface center line among the 3rd waveguide III is provided with second gap array 7 that is operated in low-frequency range, and what replace in the both sides of second gap array 7 is provided with plated-through hole 8; The end of the 3rd waveguide III links to each other with straight microstrip line 9 by one section gradual change microstrip line 3.With the lower surface of the first waveguide I and the pairing dielectric substrate of the 3rd waveguide III be provided with first gap array of upper surface, the 3rd gap array 61 that second gap array is corresponding fully, Fpir Crevices crack array 71 to realize omnidirectional antenna (shown in Fig. 2 (a)), also can not establish slit (shown in Fig. 2 (b)) then is the one-way radiation antenna.
The structure that the utilization of this example is introduced has above realized being operated in the omnidirectional antenna of two frequency ranges of 2.4GHz/3.5GHz, and this antenna can be applied to the system of integrated with personal radio communication and broadband radio access network.Antenna structure as shown in Figure 3, the dielectric substrate relative dielectric constant that antenna adopts is 2.2, dielectric substrate thickness is 2mm, the metal throuth hole diameter that constitutes substrate integration wave-guide is 0.3mm, spacing is 0.8mm between the through hole.The test result of antenna shown in Fig. 4,5,6, this antenna at 2.437GHz to 2.474GHz and 3.456GHz to two frequency range internal reflections of 3.556GHz coefficient all less than-10dB, present tangible dual frequency characteristics.Measure gain when this antenna works in 2.46GHz and be 3.87dB, the ripple of directional diagram E face is less than 0.6dB; Measure gain when working in 3.5GHz and be 2.61dB, the ripple of directional diagram E face is less than 1.5dB.
Claims (2)
1. the double frequency slot array antenna of a substrate integration wave-guide, it is characterized in that this antenna is produced on the dielectric substrate, upper surface at dielectric substrate is covered with the first upper surface metal patch (2), the second upper surface metal patch (3), lower surface is covered with the first lower surface metal patch (21), the second lower surface metal patch (31) and surround substrate integration wave-guide through the plated-through hole array of double layer of metal face up and down, it is first waveguide (I) that substrate integration wave-guide is enclosed part by first plated-through hole (41), being enclosed part by second plated-through hole (42) is second waveguide (II), being enclosed part by the 3rd plated-through hole (43) is three parts of the 3rd waveguide (III) formations that are linked in sequence, and the end of first waveguide (I) is the 4th plated-through hole (5); The both sides of the last metal surface center line in first waveguide (I) are respectively equipped with first gap array (6) that is operated in high band, last metal surface center line in the 3rd waveguide (III) is provided with second gap array (7) that is operated in low-frequency range, and what replace in the both sides of second gap array (7) is provided with a plated-through hole (8); One end of the 3rd waveguide (III) links to each other with straight microstrip line (9) by one section gradual change microstrip line (3).
2. the double frequency slot array antenna of substrate integration wave-guide according to claim 1, the lower surface that it is characterized in that first waveguide (I) and the pairing dielectric substrate of the 3rd waveguide (III) (1) be provided with first gap array (6) of upper surface, the 3rd gap array (61) that second gap array (7) is corresponding fully, Fpir Crevices crack array (71) with the realization omnidirectional antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200308915U CN201178135Y (en) | 2008-01-15 | 2008-01-15 | Dual-frequency slot antenna with integrated waveguide on substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200308915U CN201178135Y (en) | 2008-01-15 | 2008-01-15 | Dual-frequency slot antenna with integrated waveguide on substrate |
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| Publication Number | Publication Date |
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| CN201178135Y true CN201178135Y (en) | 2009-01-07 |
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| CNU2008200308915U Expired - Fee Related CN201178135Y (en) | 2008-01-15 | 2008-01-15 | Dual-frequency slot antenna with integrated waveguide on substrate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110898A (en) * | 2010-12-23 | 2011-06-29 | 东南大学 | Millimeter wave substrate integrated waveguide filtering antenna |
| CN101227028B (en) * | 2008-01-15 | 2012-04-11 | 东南大学 | Double frequency slit antenna of substrate integrated waveguide |
| CN109283477A (en) * | 2018-09-19 | 2019-01-29 | 西安电子工程研究所 | A kind of substrate integration wave-guide internal calibration network |
| CN110416702A (en) * | 2018-04-30 | 2019-11-05 | 恩智浦美国有限公司 | Antenna with beam switchable pattern |
-
2008
- 2008-01-15 CN CNU2008200308915U patent/CN201178135Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227028B (en) * | 2008-01-15 | 2012-04-11 | 东南大学 | Double frequency slit antenna of substrate integrated waveguide |
| CN102110898A (en) * | 2010-12-23 | 2011-06-29 | 东南大学 | Millimeter wave substrate integrated waveguide filtering antenna |
| CN110416702A (en) * | 2018-04-30 | 2019-11-05 | 恩智浦美国有限公司 | Antenna with beam switchable pattern |
| EP3565059A1 (en) * | 2018-04-30 | 2019-11-06 | NXP USA, Inc. | Antenna with switchable beam pattern |
| US11271318B2 (en) | 2018-04-30 | 2022-03-08 | Nxp Usa, Inc. | Antenna with switchable beam pattern |
| US11870146B2 (en) | 2018-04-30 | 2024-01-09 | Nxp Usa, Inc. | Antenna with switchable beam pattern |
| CN110416702B (en) * | 2018-04-30 | 2024-01-30 | 恩智浦美国有限公司 | Antenna with switchable beam pattern |
| CN109283477A (en) * | 2018-09-19 | 2019-01-29 | 西安电子工程研究所 | A kind of substrate integration wave-guide internal calibration network |
| CN109283477B (en) * | 2018-09-19 | 2020-08-04 | 西安电子工程研究所 | Substrate integrated waveguide internal calibration network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20150115 |
|
| EXPY | Termination of patent right or utility model |