baber/WOPTO huggingface dataset:
Patent WO-2018153299-A1 (WO)
Title: 图像处理的方法、装置及存储介质
Inventor: FAN JUNHAO
IPC: G06T1/00
Filed: 2018-02-12
Abstract: 本申请实施例提供了一种图像处理的方法，应用于用户设备，包括：响应于用户对图像的获取请求，获取用户标识，将所述用户标识转换为对应的转换信息；根据所述请求获取所述图像，并获取所述图像中多个图像元素，所述多个图像元素的排列方式符合预定的排列规则；根据所述转换信息中的多个信息元素，从所述多个图像元素中选择多个目标元素，其中，所述多个目标元素之间的位置关系与所述转换信息中的多个信息元素相对应；对所述多个目标元素的显示状态进行调整，使得所述多个目标元素的显示状态与所述图像中的其他图像元素不同。本申请还提供了另一图像处理的方法、相应的装置及存储介质。
Patent WO-2018153319-A1 (WO)
Title: 物体检测方法、神经网络的训练方法、装置和电子设备
Inventor: LI HONGYANG
IPC: G06V10/25
Filed: 2018-02-13
Abstract: 一种物体检测方法、神经网络的训练方法、装置和电子设备。物体检测方法包括：通过用于目标区域框检测的深度卷积神经网络，从待处理的图像预测获取多个融合特征图（S110），其中，从具有至少一个下采样层的第一子网获取多个第一特征图，从具有至少一个上采样层的第二子网获取多个第二特征图，分别由多个第一特征图和多个第二特征图融合得到融合特征图；根据所述多个融合特征图获取目标区域框数据（S120）。由于这些融合特征图较好地表征了图像中高层的语义特征和低层的细节特征，根据这些融合特征图能够有效地提取到图像中包含的大小物体的目标区域框数据，从而提高物体检测的准确性和鲁棒性。
Patent WO-2019174024-A1 (WO)
Title: Rotation scramming device and application thereof
Inventor: ZHOU MI
IPC: B65H75/48
Filed: 2018-03-16
Abstract: A rotation scramming device (10) and a method and application thereof. The rotation scramming device (10) is configured to restrict the rotation of a rotation shaft (20) and comprises a connection member (11), a stop member (13), and a movable member (12). The connection member (11) is suitable for being fixedly connected to the rotation shaft (20), so as to synchronously rotate with the rotation shaft (20); the movable member (12) is movably provided at the connection member (11), and can be driven by the connection member (11) to rotate, wherein when the rotation speed of the rotation shaft (20) reaches above a predetermined rotation speed limit, the movable member (12) is driven to couple with the stop member (13) under the action of an inertial centrifugal force, so as to allow the rotation shaft (20) to stop rotation.
Patent WO-2018184547-A1 (WO)
Title: 一种代码移交的辅助方法、电子设备及介质
Inventor: LI ZHI
IPC: G06F9/44
Filed: 2018-04-04
Abstract: 本申请适用于计算机技术领域，提供了一种代码移交的辅助方法、电子设备及介质，所述辅助方法包括：当检测到对代码移交界面上的辅助功能标识的触发信息时，进入代码移交辅助状态，获取待辅助的任务号；判断所述任务号是否符合移交条件；若是时，根据所述任务号获取待移交内容的格式，执行与所述待移交内容的格式对应的辅助操作。本申请实现了在代码移交的操作过程中结合移交操作指导，使得新入职员工可以针对当前的移交任务进行针对性学习，无需请教老员工。
Patent WO-2018201915-A1 (WO)
Title: 数据处理方法和装置
Inventor: DU BAI
IPC: H04L1/00
Filed: 2018-04-19
Abstract: 本申请提供一种数据处理方法和装置，第一设备根据TB的大小确定对TB进行CB分段后得到的CB个数C，根据预先获取的TB包括的CBG个数和CB个数，确定每个CBG包括的CB个数，然后根据每个CBG包括的CB个数和第一时频资源中的时域符号个数，确定所述第一时频资源中用于承载每个CBG的数据的时域符号个数，最后根据用于承载每个CBG的数据的时域符号个数，将每个CBG的数据映射到第一时频资源上。从而能够保证将每个CBG映射到一个或多个完整的时域符号上。由于每个CBG的数据都是映射到一个或多个完整的时域符号上，不会出现一个时域符号上有两个CBG的数据，因此当URLLC业务数据抢占eMBB业务数据的时频资源的时候，抢占某一个时域符号的资源只会影响到某一个CBG的传输，而不会同时影响两个CBG的传输，从而能够有效地提升eMBB业务数据的传输效率。
Patent WO-2019204967-A1 (WO)
Title: Memory control circuit for use in storage device
Inventor: FAN XI
IPC: G11C7/00
Filed: 2018-04-23
Abstract: A memory control circuit (400), relating to the field of digital circuits, and being used for reading and writing data in a non-volatile memory (160), comprising an XNOR circuit (420) and a read/write control circuit (440). The XNOR circuit (420) is used for performing bitwise XNOR operations on a plurality of data blocks and producing redundant data blocks, and the read/write control circuit (440) is used for writing the plurality of data blocks and redundant data blocks to the non-volatile memory (160) and reading the plurality of data blocks in the non-volatile memory (160), the plurality of data blocks and the redundant data blocks being stored in a storage unit. The non-volatile memory (160) comprises a plurality of storage units, each storage unit having a capacity of n bits and having 2 n  storage states, the number of the plurality of data blocks being n-1, and n being an integer greater than or equal to 2. As only 2 n-1  storage states in each storage unit are used for storing data, the difference of the threshold voltage corresponding to the storage state is changed to around twice the original amount, such that the degree of overlap of the storage states decreases, reducing the probability of the memory control circuit (400) reading erroneous data.
Patent WO-2019204984-A1 (WO)
Title: Camshaft phaser
Inventor: GUO WENPING
IPC: F01L1/34
Filed: 2018-04-24
Abstract: A camshaft phaser, comprising a stator (1), a rotor (2) and a locking assembly (3), wherein the rotor (2) is disposed at a radial inner side of the stator (1) and is capable of rotating relative to the stator (1), and a plurality of sets of oil chambers that are distributed circumferentially are formed between the rotor (2) and the stator (1), each set of oil chambers comprising a first oil chamber (A) and a second oil chamber (B) that are separated by rotor blades (22) of the rotor (2). When the camshaft phaser is in a locked state in which the rotor (2) is locked by the locking assembly (3) so as be incapable of rotating relative to the stator (1), the first oil chamber (A) and second oil chamber (B) in at least one oil chamber among the plurality of sets of oil chambers communicate such that, in the locked state, oil of the first oil chamber (A) may flow into the second oil chamber (B) such that a predetermined amount of oil may be retained in the second oil chamber (B). The described camshaft phaser eliminates high-frequency noise.
Patent WO-2019213953-A1 (WO)
Title: Communication method and communication apparatus
Inventor: LI YUAN
IPC: H04W72/04
Filed: 2018-05-11
Abstract: The present application provides a communication method and a communication apparatus. The method comprises: receiving scheduling information from a network device, the scheduling information being used to indicate at least one uplink subframe, the scheduling information comprising a first indication field and a second indication field, the first indication field being used to indicate whether each uplink subframe of said at least one uplink subframe is applicable to a first mode, the second indication field being used to indicate whether the first uplink subframe is applicable to a second mode; in the case where the first indication field indicates that each uplink subframe of said at least one uplink subframe is applicable to the first mode and the second indication field indicates that the first uplink subframe is applicable to the second mode, using the second mode to send first uplink information on the first uplink subframe. The communication method in the embodiments of the present application helps to improve the indication flexibility of the transmission mode of an uplink subframe. The method provided in the present embodiment may be applied to a communication system, for example, a V2X, an LTE-V, a V2V, an Internet of vehicles, an MTC, an IoT, an LTE-M, an M2M, an Internet of Things, etc.
Patent WO-2019192054-A1 (WO)
Title: Digital predistortion power amplifier calibration method and system and digital predistortion apparatus
Inventor: DENG HAILONG
IPC: H04L25/49
Filed: 2018-05-14
Abstract: The present invention relates to a digital predistortion power amplifier calibration method and system and a digital predistortion apparatus. The digital predistortion power amplifier calibration method comprises: acquiring, according to input power and feedback power of a test signal after calibration, a reference value for calibration of a useful signal; acquiring, according to real-time input power and real-time feedback power of the useful signal, a real-time target value for calibration of the useful signal; and comparing the reference value with the real-time target value, and controlling in real time attenuation of a first digitally controlled attenuator according to the comparison result, to calibrate a digital predistortion power amplifier for the useful signal passing through the first digitally controlled attenuator. This method enables real-time loop control of useful signals without relying on other instruments, improving the versatility of calibration methods for useful signals.
Patent WO-2019095688-A1 (WO)
Title: 一种基于计程车的租借雨伞方法及系统
Inventor: ZENG ZHAOXING
IPC: G07F17/00
Filed: 2018-06-21
Abstract: 一种基于计程车的租借雨伞方法，在计程车上设置雨伞，计程车设置计程车ID、雨伞设置雨伞ID及含有雨伞ID的第一二维码，将计程车ID及雨伞ID进行匹配绑定；第一移动终端上传第一地理位置并发出用伞请求；第一预设地理位置范围内的计程车接受用户请求后进行送伞；当第一移动终端扫描第一二维码时，计程车ID与雨伞ID解除绑定；第一移动终端对应的第一ID与雨伞ID绑定，标记第一移动终端借伞成功。
Patent WO-2019007352-A1 (WO)
Title: Data processing method and apparatus based on electronic commerce
Inventor: CHEN JIANHUI
IPC: G06F17/30
Filed: 2018-07-04
Abstract: The present invention provides a data processing method and apparatus based on electronic commerce. The data processing method comprises: obtaining data, which comprises a user search log and logistics information; obtaining rankings in descending order of region-based keyword weight values according to the data; obtaining characteristic values of a keyword in multiple regions according to the rankings in descending order of region-based keyword weight values; and marking a hot region corresponding to the keyword according to the characteristic values. The data processing method based on electronic commerce provided by the present invention is able to mine regional characteristics of keywords.
Patent WO-2019178982-A1 (WO)
Inventor: LI JIANJUN
IPC: G03B21/56
Filed: 2018-07-04
Abstract: A projection screen and a projection display system. The projection screen comprises an optical screen (1), a flexible connection portion (2), a screen frame (3) disposed at the side of the flexible connection portion (2) distant from the optical screen (1), and an elastic connection member (4). A first connection portion of the flexible connection portion (2) is fixedly connected to the optical screen (1). A second connection portion of the flexible connection portion (2) is connected to a first end of the elastic connection member (4). A second end of the elastic connection member (4) is connected to the screen frame (3). The elastic connection member (4) is configured to stretch the optical screen (1) to a flat state by means of the flexible connection portion (2). According to the projection screen, good flatness can be maintained while fixing the optical screen (1). The projection display system comprises a projection device and the projection screen. The projection device is used for projecting a projection image to the optical screen (1) of the projection screen.
Patent WO-2019015693-A1 (WO)
Title: B41-based full-band radio frequency device and communication terminal
Inventor: ZHANG HUA
IPC: H04B1/00
Filed: 2018-07-23
Abstract: The present invention discloses a B41-based full-band radio frequency device and communication terminal. The B41-based full-band radio frequency device comprises a main part and a diversity part. The main part comprises a power amplifier module configured to perform amplification processing on an output signal, a first filter module configured to perform filter processing on a transmitted signal or a received signal on a first frequency band, and a duplex module configured to receive and transmit a signal on a second frequency band. The diversity part comprises a second filter module configured to perform filter processing on a received signal on a third frequency band and a third filter module configured to perform filter processing on a received signal on a fourth frequency band, wherein the first frequency band and the second frequency band are combined to form a B41 full frequency band, and the third frequency band and the fourth frequency band are combined to form a B41 full frequency band. The main part and the diversity part both realize full-band communication over the B41 frequency band via combinations of different frequency bands, facilitating product packaging, and the device price is less than a scheme in which full-band is directly employed, reducing costs.
Patent WO-2019042145-A1 (WO)
Title: Aerosol generating device, product and system
Inventor: LUO JIANPENG
IPC: A24F40/485
Filed: 2018-08-17
Abstract: An aerosol generating device, product and system. The aerosol generating device comprises an evaporating component. A sidewall of the evaporating component is provided with a first air slot thereon. The sidewall of the evaporating component is configured to bond closely to a carrier of an aerosol generating product contained in a container assembly. The length of the evaporating component is configured to be able to pierce through a pierceable sealing piece disposed at one end of the container assembly away from a mouthpiece component of the aerosol generating product and insert into a carrier through-hole of the carrier. The first air slot is configured to guide the air and the evaporant formed after the aerosol generating matrix in the carrier is heated and evaporated into the mouthpiece component.
Patent WO-2019034130-A1 (WO)
Title: Transmission method, transmitting terminal and receiving terminal
Inventor: WANG GANG
IPC: H04L29/08
Filed: 2018-08-17
Abstract: Provided in the present application are a transmission method, transmitting terminal and receiving terminal capable of reducing time overhead of a cascading process of a radio link control (RLC) layer, increasing the data transmission efficiency. The method comprises: a first packet data convergence protocol (PDCP) entity of a transmitting terminal performing a cascading process on a plurality of continuous data packets on a first radio bearer to obtain a PDCP service data unit (SDU), the length of the PDCP SDU being less than or equal to a first preset length; the first PDCP entity performing a PDCP process on the PDCP SDU to obtain a PDCP protocol data unit (PDU); and the first PDCP entity transmitting the PDCP PDU to the first RLC entity of the transmitting terminal.
Patent WO-2019091371-A1 (WO)
Title: 基于码链的模型、装置、系统、方法和应用
Inventor: XU WEI
IPC: G06Q20/40
Filed: 2018-11-06
Abstract: 基于码链的模型、装置、系统、方法和应用，在基于码链实现交互时任意一个数字人具有标识信息，通过终端设备对基于码链接入协议生成的编码介质进行识别，使数字人得以代表人来接入码链网络，根据人的委托与其他数字人和/或系统进行数据传递。通过对编码介质的识别，获得码链服务器的接入地址，进而从码链服务器处获得实际提供服务的服务器地址，通过提供要求的服务参数获得服务。
Patent WO-2020103093-A1 (WO)
Inventor: ZHANG CAIHUI
IPC: H02J7/00
Filed: 2018-11-22
Abstract: Disclosed are a charging control method, a charger and a charging control system, wherein the method comprises: determining a battery accessing a charger, and establishing a communication connection with the battery; acquiring a charging parameter sent by the battery, and sending the charging parameter to a rectifier module of the charger so as to set an output parameter of the rectifier module; and charging the battery according to the output parameter. The design of a charger can be simplified, thereby lowering the cost of the charger.
Patent WO-2019105482-A1 (WO)
Inventor: XU LIMING
IPC: D06P5/30
Filed: 2018-12-03
Abstract: 一种利用数码喷印机的纺织品的双面喷墨印花方法及纺织品。其中喷墨印花方法包括以下步骤：1)将目标图案导入存储单元（21）；2)对目标图案进行镜像处理，获得镜像目标图案，保存到存储单元（21）中；3)将纺织品放置到导带（42）的喷印区域，通过数码喷头（1）将目标图案打印到纺织品的正面上，形成正面印花图案；4)将纺织品翻面放置到导带上，利用图像采集单元（3）采集纺织品反面上渗透的图案，传输至存储单元（21）；5)通过处理单元（22）对镜像目标图案进行调整，使之与图像采集单元（3）采集到的反面图案对准；6)将调整后的镜像目标图案通过数码喷头（1）打印到纺织品的反面上。
Patent WO-2019110005-A1 (WO)
Title: 一种终端智能省电的方法、终端及具有存储功能的装置
Inventor: WU ZHAOYUN
IPC: H04W52/02
Filed: 2018-12-07
Abstract: 本申请公开了一种终端智能省电的方法，该方法包括：获取终端WIFI连接的IP地址所对应的IP租约时间长度；判断IP租约时间长度是否小于等于预设阈值；判断终端的屏幕是否是熄屏状态或终端的CPU是否为休眠的状态；当终端的屏幕是熄屏状态或终端的CPU为休眠的状态，且IP租约时间长度小于等于预设阈值时，移除第一租约过程。通过上述方式，本申请可以有效的减少对于WIFI和AP处理器及屏幕的唤醒的次数，从而实现终端功耗的节约，更长的续航时间。本申请还提供一种终端及一种具有存储功能的装置。
Patent WO-2019227896-A1 (WO)
Title: Washing machine door structure and washing machine having same
Inventor: YANG HONGYONG
IPC: D06F39/14
Filed: 2018-12-13
Abstract: The present invention provides a washing machine door structure and a washing machine having same. The washing machine door structure comprises a door body and convex ribs, the convex ribs being connected to the door body, the plurality of convex ribs being arranged at intervals, and the convex ribs are used for cleaning objects to be cleaned. The plurality of convex rib structures is arranged on the door body of the washing machine door structure, and the convex ribs are arranged at intervals, so that when the washing machine having the washing machine door structure works, the convex rib structures can be rubbed with the objects to be cleaned in the washing machine, so as to realize the effect of further cleaning the objects to be cleaned by means of the convex rib structures; moreover, arrangement of the convex rib structures can effectively avoid the situation that the objects to be cleaned are accumulated on the door body and cannot be cleaned. By using the structure, the washing machine door structure can effectively improve the cleaning efficiency of the washing machine having the door structure and the use experience of a user.
Patent WO-2020062618-A1 (WO)
Inventor: QI XIWEI
IPC: H01L41/00
Filed: 2018-12-18
Abstract: Disclosed are a ferroelectric material with a good temperature stability, a preparation method therefor and the use thereof, which belong to the field of ferroelectric materials. The general formula of the chemical compositions of the ferroelectric material is as follows: 0.675BiFeO 3 -0.3 BaTiO 3 -0.025LaFeO 3 -x%MnO 2 , 0 < x ≤ 4. The preparation method therefor involves weighing initial raw materials according to the stoichiometric ratio of ingredients of the ferroelectric material; placing the initial raw materials into a ball mill tank, adding a solvent for ball milling, then drying same and further pre-sintering same at 720ºC-780ºC to obtain a pre-synthesized powder; and continuously wet ball-milling the pre-synthesized powder body, drying same and then adding a binder, uniformly mixing same, then sieving and tabletting same, discharging binders from an obtained ceramic chip at 500ºC-600ºC, and further sintering same at 900ºC-1100ºC to obtain the ferroelectric material with a good temperature stability.
Patent WO-2020132977-A1 (WO)
Title: 一种半导体封装件、电子设备
Inventor: YE GUANHONG
IPC: H01L23/48
Filed: 2018-12-26
Abstract: 本申请实施例提供一种半导体封装件、电子设备，涉及电子封装技术领域，用于解决了由于凸块分布不均，导致底胶填充性下降的问题。该半导体封装件包括封装基板、半导体器件、多个第一电连接件、多个辅助结构。其中，封装基板具有相对设置的上表面和下表面。半导体器件位于封装基板的上表面。多个第一电连接件排布于半导体器件的下表面，用于将半导体器件与封装基板电连接。多个辅助结构排布于封装基板的上表面，并从封装基板的上表面凸出。辅助结构在半导体器件下表面上的正投影，位于半导体器件下表面上未设置第一电连接件的部分。
Patent WO-2020150844-A1 (WO)
Inventor: LUO ENHAO
IPC: B32B37/06
Filed: 2019-03-05
Abstract: 一种塑料板材再加工成型的技术方案，将各类塑料板材再加工成壳形、曲面形、凹形、凸形体，浸入到加温水或油的容器中进行加热软化，在模具的挤压下成型，之后将模具与其中的板材共同取出，放入有水或油的冷却容器中冷却定型，解决了现有加工难及吸塑技术方案中存在的设备成本高、耗能大，技术要求高等缺陷，具有制造成本低，耗能少，效率高，变形小，产品稳定性好的优点。
Patent WO-2020107661-A1 (WO)
Inventor: RAO YANG
IPC: G09G3/20
Filed: 2019-01-08
Abstract: Provided is an image color temperature acquisition method. The image color temperature acquisition method of the present invention involves: dividing a color gamut space into a first area, a second area and a third area; calculating a color difference value between pixels, at the same position, in two adjacent frames of images, and taking same as a weighting parameter of a pixel in a next frame of image; determining the position of color coordinates of the pixel in the next frame of image, when the color coordinates are located in the first area, using a pixel color temperature formula to calculate a color temperature value of the pixel and adding the corresponding weighting parameter to a weight of the color temperature value in a statistical table, when the color coordinates are located in the second area, using a position relationship between the color coordinates of the pixel and a reference point and the weighting parameter to calculate a weight value of the pixel and adding the weight value to a weight of the maximum reference color temperature in the statistical table, and when the color coordinates are located in the third area, using a position relationship between the color coordinates of the pixel and the reference point and the weighting parameter to calculate a weight value of the pixel and adding the weight value to a weight of the minimum reference color temperature in the statistical table; and calculating a color temperature of the next frame of image in conjunction with the weight. By means of the method, an image color temperature can more accurately be acquired.
Patent WO-2020113797-A1 (WO)
Inventor: KE LINBO
IPC: H01L27/12
Filed: 2019-01-21
Abstract: 一种柔性阵列基板及其制作方法、显示面板。所述柔性阵列基板通过图案化的填充层(111)减薄弯折区(B)的柔性衬底(200)的厚度，并且使用剥离层(112)分离柔性衬底(200)和填充层(111)，使得弯折区(B)的金属走线层趋向应力中性面，从而实现弯折性能优异的柔性阵列基板。在保持聚酰亚胺材料优异性能的同时，利用弯折区(B)的柔性衬底(200)减薄来改善柔性阵列基板在弯折区(B)的弯折性能，从而避免弯折区(B)可能出现的内应力增加、金属走线弯折断裂等问题。
Patent WO-2020118929-A1 (WO)
Title: Express cabinet music playing method and apparatus, device, and storage medium
Inventor: MA HAIYAN
IPC: A47B81/00
Filed: 2019-03-12
Abstract: An express cabinet music playing method and apparatus, a device, and a storage medium. The method comprises: associating an audio file delivered by a deliverer with different buttons (110); displaying music playing prompt information to prompt a user to press a target button to trigger a music playing start switch (120); in response to the acquisition of music playing start information, displaying a pressing order of the button (130); playing back a corresponding audio file according to the acquired pressing information of the button (140).
Patent WO-2020155358-A1 (WO)
Inventor: OUYANG MIN
IPC: G05B19/418
Filed: 2019-03-28
Abstract: 一种智能家居设备联动控制方法，发起设备解析联动配置信息，获得一个或多个联动场景内的联动设备信息、联动条件和联动动作(S200)；确定当前工作环境满足联动条件，生成联动指令(S202)；将联动指令通过局域网发送至响应设备，还将联动指令通过云端服务器发送至响应设备，以使响应设备根据接收到的联动指令，执行对应的联动动作(S204)。同时公开了一种智能家居设备联动控制装置、智能家居设备及存储介质。
Patent WO-2020155394-A1 (WO)
Title: Hair cutting apparatus, cutting unit and connector thereof
Inventor: YU GUANGMEI
IPC: B26B19/28
Filed: 2019-04-12
Abstract: A connector comprises a base portion (1). At least one engagement member (2) extends from one side of the base portion (1). The engagement member (2) has a contact recess (21) formed along an extension direction thereof. A protrusion (24) is formed in the contact recess (21). The connector better fits existing receiving receptacles, can be plugged and unplugged conveniently, and ensures reliable connection.
Patent WO-2020223950-A1 (WO)
Title: Method, apparatus and device for preventing data loss and system damage of usb flash disk
Inventor: LI HU
IPC: G06F11/14
Filed: 2019-05-09
Abstract: A method, apparatus and device for preventing data loss and system damage of a USB flash disk. The method comprises: adding, to a main control chip of a USB flash disk, a one time programmable (OTP) storage space (S101, S501); storing running code and original algorithm management table data in the one time programmable (OTP) storage space (S102, S502); and when a Boot Loader fails to normally load the running code or original algorithm management table data, reading the stored running code data from the one time programmable (OTP) storage space and recovering the running code data according to the read running code data, and reading the stored original algorithm management table data from the one time programmable (OTP) storage space and recovering the original algorithm management table data according to the read original algorithm management table data (S103, S503). By the above-mentioned means, the USB flash disk can be protected against situations in which original data of a user is lost or the USB flash disk cannot run due to system damage.
Patent WO-2020034683-A1 (WO)
Title: Antenna element and antenna system
Inventor: LIU JIANCHUAN
IPC: H01Q1/48
Filed: 2019-05-21
Abstract: Provided in the present invention is an antenna element, comprising a radiator sheet, a dielectric layer and an antenna ground layer that are disposed to be sequentially stacked on top of one another. The radiator sheet comprises a first antenna element and a second antenna element that are opposite to and spaced from each other and are complementary in structures thereof. The first antenna element is provided with a feeding point connected to an external power source and two first grounding points connected to the antenna ground layer. The second antenna element is provided with three second grounding points connected to the antenna ground layer. Compared to the prior art, the antenna element provided in the present invention operates in a frequency band of 37-42.5 GHz, has a good antenna performance, wide operating frequency band and simple structure, thus realizing low profile easily.