CN102195143A - Broadband shunt-feed omnidirectional antenna array with inclination angle - Google Patents
Broadband shunt-feed omnidirectional antenna array with inclination angle Download PDFInfo
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- CN102195143A CN102195143A CN2011100574017A CN201110057401A CN102195143A CN 102195143 A CN102195143 A CN 102195143A CN 2011100574017 A CN2011100574017 A CN 2011100574017A CN 201110057401 A CN201110057401 A CN 201110057401A CN 102195143 A CN102195143 A CN 102195143A
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Abstract
The invention discloses a broadband shunt-feed omnidirectional antenna array with inclination angle, which is used for wireless communication and comprises a double bipole-type antenna array element part and a feeding network, wherein the array element part adopts the double bipole-type antenna, playing the role of broadband expansion on the basis of general bipole-type antenna; the feeding network consists of a medium substrate, a microstrip line and a power distribution network, a microstrip horizontal plane is arranged at the bottom of the medium substrate to implement the transformation from unbalance to balance through a tapered line; certain path difference is introduced between different array elements so that phase difference is generated between different array elements to further create main lobe inclination angle. The same effect is obtained regardless of the fact that the feeding network is positioned either above or below the medium substrate, and input signals are distributed to the antenna array elements through the feeding network in order to achieve radiation.
Description
Technical field
The invention belongs to wireless communication technology field, be specifically related to a kind of broadband omni-directional antenna battle array with angle, can be used for the base station and the travelling carriage part antenna of following radio communication test network.
Background technology
Antenna is the critical component in the mobile communication system, it provides passage for the radiation and the reception of radiobeam, and electromagnetic signal in the circuit and the transformation way between the electromagnetic wave in the free space are provided.Modern electromagnetism experiences 300 years of development, and is ripe day by day perfect.Antenna is complied with communication as the key equipment of realizing radio application, broadcasting, radar, radio application systems such as guidance are at the needs of different phase and constantly development is contrasted the past with the present, antenna is in function, design and manufacturing process on great variety has all taken place.
Printed antenna is a kind of technology of coming designing antenna with the printed circuit manufacturing process, and the microstrip antenna technology then is the prevailing form of printed antenna.As far back as the fifties in last century, the notion of associated microstrip radiating element just is suggested, but begins up to the seventies, and the development along with to the photoetching technique of the dielectric substrate that is covered with metal has the microstrip antenna of printing structure and just created practically.Micro-strip paster antenna is compared with other antennas, and it is little to have volume, in light weight, characteristics such as low section, and low cost of manufacture are fit to produce in batches, the scattering section of antenna is little, can access unidirectional wide lobe directional diagram, and the greatest irradiation direction is in the normal direction on plane; With microwave monolithic integrated circuit (MMIC) and optoelectronic IC (OEIC) technical compatibility; Be easy to realize linear polarization and circular polarization, realize advantages such as two-band and dual polarization easily.And printed dipole antenna has solved traditional doublet antenna making complexity, and is difficult for and the integrated problem of feeding network.
In this simultaneously, micro-strip paster antenna also exists various defectives, comprises that relative bandwidth is narrower, has conductor and dielectric loss, and power capacity is little or the like.Wherein topmost problem is exactly the deficiency on the relative bandwidth, and in recent years by adopting the parasitic couplings paster, aperture stacked patch, the wide sealing paster equiband expansion technique that directly is coupled has obtained certain improvement, but the corresponding manufacture difficulty that also increased.Beginning to have the researcher to adopt a kind of double dipole antenna structure in recent years, promptly is the structure of all printing the dipole of a pair of symmetry in the inside up and down of substrate, can play the effect of playing the bandwidth expansion effectively.
In the Antenna Design of radio communication test network, need guarantee the omni-directional while spread bandwidth of antenna H face as far as possible, improve gain.Being exactly of the main solution of system architecture provides communication link for numerous fixing base stations.Communicate by letter in order to provide for the fixed base stations that is positioned at central authorities with numerous substation points, central base station generally adopts omnidirectional antenna, so omnidirectional antenna has great importance in the process of mobile communication networking.
Also need to consider the gain problem of antenna in the practical application simultaneously,, can comprise the aerial array of a plurality of array elements with structure by complicated more feeding network in order to satisfy the gain requirement of omnidirectional antenna.Feed system between the bay can be a parallel-connection structure, also can be cascaded structure.Parallel-connection structure generally passes through power splitter, coupler or transmission line, and waveguide, structures such as microstrip line connect array element and form, and the electrical length from distributing point to each radiating element all equates; The fixing electrical length and cascaded structure is separated by from distributing point to each radiating element.If but the gain that requires is very big, antenna element quantity is too much so, it is very complicated that feeding network will become, loss on the transmission line just is difficult to meet the demands, the gain that this can directly reduce antenna has certain limit so improve gain by the method that increases the micro-strip paster antenna element number of array.Can consider to adopt slot array antenna in this case, it can satisfy high-power requirement, give each slot element by waveguiding structure with energy distribution, the waveguide transmission line loss is low, but the design of waveguide simultaneously is also comparatively complicated, comprise the design of T type knot and hybrid network, this can significantly increase the complexity and the cost of design.
Summary of the invention
Goal of the invention: the objective of the invention is at above-mentioned the deficiencies in the prior art part, a kind of broadband omni-directional antenna array with angle that can realize the E face main lobe inclination angle of broadband, high-gain and any direction is provided, and this broadband omni-directional antenna array can be used as the base station and the travelling carriage part antenna of following radio communication test network.
Technical scheme: the omnidirectional antennas linear array is also presented in broadband with angle of the present invention, comprises dielectric substrate, is printed with 2 on the described dielectric substrate
n(n is 〉=1 natural number) individual bay and the feeding network that adapts; Each bay is a parallel-connection structure, is provided with certain path difference between the different antenna element, thereby produces the main lobe inclination angle so that produce phase difference between the different array element; Described feeding network is symmetricly set on the upper and lower surface of dielectric substrate, is made of microstrip line and power distributing network; Signal input part is arranged on the upper surface of dielectric substrate, and input signal is assigned to each bay by feeding network and carries out radiation; Little band ground level is arranged on the bottom of dielectric substrate, realizes uneven conversion to balance by transition line.
In order on the basis of general dipole antenna, to have played the effect of bandwidth expansion, described bay is a quadripole subtype array element, symmetry is printed on the upper and lower surface of dielectric substrate, raising one's arm for two of oscillator is made of the metal band that is positioned at the upper and lower surface of dielectric substrate respectively, and the metal band on upper and lower surface connects by plated-through hole; The parallel broadside coupled line of class that two twin leads in the feeding network constitute is raised one's arm to link to each other and is constituted the feed port of balance with two respectively on the upper and lower surface of substrate.
Described power distributing network is made of several power dividers, and several power dividers are separately positioned on two adjacent bay junctions and two adjacent power divider junctions.Carry out power division by power divider between two adjacent antenna array elements, carry out power division by another power divider between the two adjacent power dividers.
Beneficial effect: the present invention compared with prior art, its beneficial effect is:
1, the bay of the present invention's employing is the double dipole antenna, compares with traditional print dipole antennas, has wideer relative bandwidth.
2, the present invention uses the mode of parallelly feeding, and it is narrow to have overcome series fed antenna array frequency band range, beam direction shortcoming such as change along with the difference of frequency easily; Can realize higher gain and stable antenna pattern by the quantity that increases radiating element.
3, the present invention realizes that the major lobe of directional diagram any direction of antenna E face tilts by introducing phase difference between different radiating elements, can be used for the base station in the radio communication and the situation at the certain inclination angle of mobile portable antennas needs.
Description of drawings
Fig. 1 (a) is an antenna array structure front view among the present invention.
Fig. 1 (b) is an antenna array structure bottom view among the present invention.
Fig. 2 is array element part-structure figure among the present invention.
Fig. 3 is the S parameter testing figure as a result of example of the present invention.
Fig. 4 is the antenna array H face and the E face directional diagram test result figure of example of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
In radio communication detecting system, because antenna for base station often has certain altitude, so require mobile portable antennas to have higher gain and certain main lobe updip angle.The omnidirectional antennas linear array is also presented in broadband with angle of the present invention, comprise dielectric substrate, be printed with 4 double dipole bays 11,12,13,14 on the described dielectric substrate, wherein array element partly adopts quadripole subtype antenna, has played the effect of bandwidth expansion on the basis of general dipole antenna.Certainly, according to the description of present embodiment, those skilled in the art also can be provided with any 2 as required
nIndividual bay reaches the effect that realizes higher gain and stable antenna pattern;
Each bay is a parallel-connection structure, is provided with certain path difference between the different antenna element, thereby produces the main lobe inclination angle so that produce phase difference between the different array element.As shown in the figure, because microstrip line 31 and microstrip line 32 length differ L, microstrip line 33 and microstrip line 34 length differ 2*L, make signal arrive double dipole bay 14, there is a path length difference L who increases progressively between 13,12 and 11, thereby between different bays, introduced phase difference value, make the major lobe of directional diagram of E face of antenna the inclination angle occur, the size that can regulate the inclination angle by the value of adjusting L.
Described quadripole subtype array element symmetry is printed on the upper and lower surface of dielectric substrate, raise one's arm for two of oscillator and constitute by the metal band that is positioned at the upper and lower surface of dielectric substrate respectively, see Arm1 among the figure, Arm2, Arm3, Arm4, the metal band on upper and lower surface connects by plated-through hole; The parallel broadside coupled line of class that two twin leads 5 in the feeding network constitute is raised one's arm to link to each other and is constituted the feed port of balance with two respectively on the upper and lower surface of substrate.
The feeding network that adapts with above-mentioned bay is symmetricly set on the upper and lower surface of dielectric substrate, is made of microstrip line and power distributing network; Signal input part is arranged on the upper surface of dielectric substrate, and input signal is assigned to each bay by feeding network and carries out radiation; Little band ground level is arranged on the bottom of dielectric substrate, realizes uneven conversion to balance by transition line 4.Described power distributing network is made of 3 power dividers, 3 power dividers are separately positioned on two adjacent bay junctions and two adjacent power divider junctions, as shown in the figure, carry out power division by power divider 21 between two adjacent antenna array element 11 and 12, carry out power division by power divider 22 between 13 and 14, be provided with another power divider 23 between the two adjacent power dividers, its input port links to each other with the input port of antenna, and two output ports link to each other with 22 input port with 21 respectively.
Provided the S parameter testing result of this application among Fig. 3, in VSWR＜1.5, the passband of aerial array is from 5.75GHz-6.75GHz, and relative bandwidth reaches 16%; Fig. 4 is the directional diagram test result of aerial array, can see E face major lobe of directional diagram updip 15 degree at this frequency place antenna, and H face deviation in roundness is good, has reached the design object of broadband parallel-fed array with angle.
As mentioned above, although explained the present invention with reference to specific preferred embodiment, it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the claims definition, can make various variations in the form and details to it.
Claims (3)
1. a broadband with angle and present the omnidirectional antennas linear array comprises dielectric substrate, the feeding network that is printed with 2n linear array unit on the described dielectric substrate and adapts, and wherein n is 〉=1 natural number; It is characterized in that: each bay is a parallel-connection structure, is provided with certain path difference between the different antenna element; Described feeding network is symmetricly set on the upper and lower surface of dielectric substrate, is made of microstrip line and power distributing network; Signal input part is arranged on the upper surface of dielectric substrate, and input signal is assigned to each bay by feeding network and carries out radiation; Little band ground level is arranged on the bottom of dielectric substrate, realizes uneven conversion to balance by transition line.
2. the omnidirectional antennas linear array is also presented in broadband with angle according to claim 1, it is characterized in that: described bay is a quadripole subtype array element, symmetry is printed on the upper and lower surface of dielectric substrate, raising one's arm for two of oscillator is made of the metal band that is positioned at the upper and lower surface of dielectric substrate respectively, and the metal band on upper and lower surface connects by plated-through hole; The parallel broadside coupled line of class that two twin leads in the feeding network constitute is raised one's arm to link to each other and is constituted the feed port of balance with two respectively on the upper and lower surface of substrate.
3. the omnidirectional antennas linear array is also presented in broadband with angle according to claim 1, it is characterized in that: described power distributing network is made of several power dividers, and several power dividers are separately positioned on two adjacent bay junctions and two adjacent power divider junctions.
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| CN2011100574017A CN102195143A (en) | 2011-03-10 | 2011-03-10 | Broadband shunt-feed omnidirectional antenna array with inclination angle |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121515A1 (en) * | 2013-02-08 | 2014-08-14 | Honeywell International Inc. | Integrated stripline feed network for linear antenna array |
| CN105552577A (en) * | 2015-12-11 | 2016-05-04 | 华南理工大学 | Low sidelobe microstrip array antenna with filtering characteristics |
| CN106207463A (en) * | 2016-08-31 | 2016-12-07 | 武汉虹信通信技术有限责任公司 | A kind of Integral type small-sized feeding network of smart antenna |
| RU2604348C2 (en) * | 2015-04-20 | 2016-12-10 | Открытое акционерное общество "Всероссийский научно-исследовательский институт радиотехники" | Printed stripped shunting dipole |
| US9728855B2 (en) | 2014-01-14 | 2017-08-08 | Honeywell International Inc. | Broadband GNSS reference antenna |
| CN108445478A (en) * | 2018-03-23 | 2018-08-24 | 加特兰微电子科技(上海)有限公司 | Millimeter wave angle radar system for vehicle |
| CN108598690A (en) * | 2018-03-29 | 2018-09-28 | 广东通宇通讯股份有限公司 | Millimeter wave Massive mimo antennas unit and array antenna |
| CN108736137A (en) * | 2017-04-20 | 2018-11-02 | 惠州硕贝德无线科技股份有限公司 | A kind of antenna array means applied to 5G mobile terminals |
| WO2019029189A1 (en) * | 2017-08-08 | 2019-02-14 | 深圳市道通智能航空技术有限公司 | Antenna assembly and wireless communication electronic device having the antenna assembly, and remote controller |
| CN109546356A (en) * | 2018-11-26 | 2019-03-29 | 哈尔滨工业大学（威海） | Inverted L-shaped printed dipole antenna array apparatus based on mixing feeding network |
| CN109687124A (en) * | 2018-12-05 | 2019-04-26 | 东南大学 | A kind of Millimeter Wave Phased Array Antenna device and its implementation for mobile terminal |
| CN111146597A (en) * | 2020-01-09 | 2020-05-12 | 广东健博通科技股份有限公司 | Main line phase matching type feed network, phase adjusting method and large-scale array antenna |
| US10727595B2 (en) | 2016-01-30 | 2020-07-28 | Huawei Technologies Co., Ltd. | Patch antenna unit and antenna |
| CN112768948A (en) * | 2017-12-26 | 2021-05-07 | 三星电机株式会社 | Antenna module, dual-band antenna device and electronic equipment |
| CN115207644A (en) * | 2022-06-24 | 2022-10-18 | 西安电子科技大学 | Broadband omnidirectional high-gain linear array antenna |
| CN115473043A (en) * | 2022-09-30 | 2022-12-13 | 广东中元创新科技有限公司 | Broadband high-gain WiFi omnidirectional antenna |
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| US3747114A (en) * | 1972-02-18 | 1973-07-17 | Textron Inc | Planar dipole array mounted on dielectric substrate |
| CN2427894Y (en) * | 2000-05-11 | 2001-04-25 | 东南大学 | Broadband printed array antenna |
| CN1398124A (en) * | 2001-07-20 | 2003-02-19 | 电信科学技术研究院 | Coupling calibration network and method for intelligent antenna array of radio communication system |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104969414A (en) * | 2013-02-08 | 2015-10-07 | 霍尼韦尔国际公司 | Integrated stripline feed network for linear antenna array |
| US20150333411A1 (en) * | 2013-02-08 | 2015-11-19 | Honeywell International Inc. | Integrated stripline feed network for linear antenna array |
| WO2014121515A1 (en) * | 2013-02-08 | 2014-08-14 | Honeywell International Inc. | Integrated stripline feed network for linear antenna array |
| US9843105B2 (en) | 2013-02-08 | 2017-12-12 | Honeywell International Inc. | Integrated stripline feed network for linear antenna array |
| CN104969414B (en) * | 2013-02-08 | 2019-02-19 | 霍尼韦尔国际公司 | Integrated strip line feed network for linear antenna arrays |
| US9728855B2 (en) | 2014-01-14 | 2017-08-08 | Honeywell International Inc. | Broadband GNSS reference antenna |
| RU2604348C2 (en) * | 2015-04-20 | 2016-12-10 | Открытое акционерное общество "Всероссийский научно-исследовательский институт радиотехники" | Printed stripped shunting dipole |
| CN105552577B (en) * | 2015-12-11 | 2018-11-02 | 华南理工大学 | A kind of Sidelobe micro-strip array antenna with filtering characteristic |
| CN105552577A (en) * | 2015-12-11 | 2016-05-04 | 华南理工大学 | Low sidelobe microstrip array antenna with filtering characteristics |
| US11189927B2 (en) | 2016-01-30 | 2021-11-30 | Huawei Technologies Co., Ltd. | Patch antenna unit and antenna |
| US10727595B2 (en) | 2016-01-30 | 2020-07-28 | Huawei Technologies Co., Ltd. | Patch antenna unit and antenna |
| CN106207463A (en) * | 2016-08-31 | 2016-12-07 | 武汉虹信通信技术有限责任公司 | A kind of Integral type small-sized feeding network of smart antenna |
| CN108736137A (en) * | 2017-04-20 | 2018-11-02 | 惠州硕贝德无线科技股份有限公司 | A kind of antenna array means applied to 5G mobile terminals |
| CN108736137B (en) * | 2017-04-20 | 2021-04-16 | 惠州硕贝德无线科技股份有限公司 | Antenna array device applied to 5G mobile terminal |
| CN109390677A (en) * | 2017-08-08 | 2019-02-26 | 深圳市道通智能航空技术有限公司 | Antenna module and the electronic equipment with this antenna module, remote controler |
| CN109390677B (en) * | 2017-08-08 | 2024-06-07 | 深圳市道通智能航空技术股份有限公司 | Antenna assembly, wireless communication electronic equipment with same and remote controller |
| WO2019029189A1 (en) * | 2017-08-08 | 2019-02-14 | 深圳市道通智能航空技术有限公司 | Antenna assembly and wireless communication electronic device having the antenna assembly, and remote controller |
| CN112768948A (en) * | 2017-12-26 | 2021-05-07 | 三星电机株式会社 | Antenna module, dual-band antenna device and electronic equipment |
| CN108445478A (en) * | 2018-03-23 | 2018-08-24 | 加特兰微电子科技(上海)有限公司 | Millimeter wave angle radar system for vehicle |
| CN108598690A (en) * | 2018-03-29 | 2018-09-28 | 广东通宇通讯股份有限公司 | Millimeter wave Massive mimo antennas unit and array antenna |
| CN108598690B (en) * | 2018-03-29 | 2024-02-20 | 广东通宇通讯股份有限公司 | Millimeter wave Massive MIMO antenna unit and array antenna |
| CN109546356A (en) * | 2018-11-26 | 2019-03-29 | 哈尔滨工业大学（威海） | Inverted L-shaped printed dipole antenna array apparatus based on mixing feeding network |
| CN109546356B (en) * | 2018-11-26 | 2022-03-15 | 哈尔滨工业大学（威海） | Inverted L-shaped printed oscillator antenna array device based on hybrid feed network |
| CN109687124A (en) * | 2018-12-05 | 2019-04-26 | 东南大学 | A kind of Millimeter Wave Phased Array Antenna device and its implementation for mobile terminal |
| CN111146597A (en) * | 2020-01-09 | 2020-05-12 | 广东健博通科技股份有限公司 | Main line phase matching type feed network, phase adjusting method and large-scale array antenna |
| CN115207644A (en) * | 2022-06-24 | 2022-10-18 | 西安电子科技大学 | Broadband omnidirectional high-gain linear array antenna |
| CN115207644B (en) * | 2022-06-24 | 2024-09-06 | 西安电子科技大学 | Broadband omnidirectional high-gain line array antenna |
| CN115473043A (en) * | 2022-09-30 | 2022-12-13 | 广东中元创新科技有限公司 | Broadband high-gain WiFi omnidirectional antenna |
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Application publication date: 20110921 |